I look after an ever growing number of linux servers as part of my job, almost all of this I do remotely and with the help of our data centre.

All remote access is by secure keys NOT passwords. I use PuTTY SSH terminal on windows so I wanted to use the same key on my linux desktop with, as it happens, Gnome Terminal. I could have just generated a new key pair on linux but that seemed silly.

First export your PuTTY key using PuTTYGen Conversions option and Export as OpenSSH key. Save the file with a sensible name. This is your PRIVATE key, this is the part you DO NOT give out. If this ever does get out in the wild you need to remove the public key from all servers and build a new key pair. If you don’t have a password/pass-phrase on your key you should add one.

Now copy the exported private key to your linux (or Mac, its exactly the same process) home folder, or where ever.

OK, you now have your private key on your linux desktop (or Mac), you need to set the right file permissions on it, ‘chmod 700 private_key_filename’, if you don’t do this it wont work (and the number of times I’ve missed this part…)

Now you should be able to SSH into your server

ssh -p port -i private_key_filename username@hostname_or_ip_address

-p port — on my servers I run the SSH daemon on a different port to 22, if you use 22 you can omit that part

-i private_key_filename — is your key that you just copied

username — is the username on the server you are connecting to, if its the same as the username on your linux (or Mac) desktop then you can omit it

hostname_or_ip_address — obvious

Por lo general, tanto Apple como Linux tienen algo muy bueno y es que no pasa como con Windows, que es una mina de virus, Spyware y demás porquería que nos elimina de un plumazo disfrutar de la informática y nos hace casi odiarla, pero de un tiempo a esta parte, a un chico (Del que no daré ningún dato, por que no se merece esa publicidad) no se le ocurre otra que gastar una “broma” y crear un gusano que hacia una modificación en el iPhone, nada grave, pero fue ya una puerta abierta para que otros tipos se metieran en ella, para “explorar” y hacer de las suyas, primero se creó un gusano que hacia algo peor y el último que se conoce aprovecha la vulnerabilidad y se hace pasar por una “cuenta bancaria falsa” (ING Direct) , además del riesgo que supone meterse en el root del móvil y con ello, robar información del usuario. Desde MUY PERSONAL, os enseño como protegeros.

• ¿Como solucionarlo desde el iPhone?.

1. Accedemos a Cydia e instalamos la aplicación MobileTerminal.
2. Abrimos la aplicación y escribimos el comando “passwd” para cambiar la contraseña del usuario “mobile”.
3. Introducimos la contraseña actual: “alpine”.
4. Introducimos la contraseña que queramos definir como nueva. Nos solicitará confirmación así que volvemos a introducirla por segunda vez (la contraseña es sensible para mayúsculas y minúsculas).
5. Ahora le toca el turno al usuario “root” así que escribimos el comando “login root”.
6. Nos solicitará la contraseña, que en este usuario sigue siendo “alpine”.
7. Repetimos el paso 2 escribiendo “passwd”, solo que esta vez no necesitaremos indicar la contraseña actual, tan solo introduciremos la nueva y la confirmaremos.
8. Y con esto ya estaremos protegidos ante cualquier ataque de Rick Astley o posible variante que surja en un futuro. Recordad que en lo sucesivo necesitaréis utilizar la nueva contraseña para acceder al iPhone mediante SSH.

• ¿Y si no se puede o no se sabe desde el iPhone?.

Ajustes -> Wi-Fi y pulsar sobre la flecha azul, aquí vemos los datos de red, lo que se necesita primero es saber que estamos en una red local, es decir, que no se está conectado a un vecino, no servirá, se necesita la IP, para quien no sepa que es, se trata de una numeración que comienza con 192.xxx.xxx.xx, una vez sepamos este dato, se necesitan 2 aplicaciones

WinSCP

Se instala.

PuTTY

En “Archivos de programa” o “Program files (x86)” dependiendo del sistema operativo, se crea la carpeta “Putty” y el arvhico que descargamos se pega dentro.

Se abre WinSCP y en IP se pone la del iPhone, puerto 22 (Ya tendría que venir por defecto), nombre de usuario “root” (sin las comillas) y contraseña “alpine“.

Es posible que salga un mensaje de advertencia de “Si estamos seguros de conectarnos a esa máquina” (En Ingles) aceptamos y ya podremos ver la jerarquía de carpetas,( ¡OJO!, no tocar nada, si no queréis un carísimo pisapapeles)  ahora en COMANDOS, usar la opción “Abrir en PuTTY” , si sale otro aviso, aceptar sin problemas, eso que veis es la consola del terminal, ya estáis dentro del root (raíz), aquí escribís:

passwd root

Ahora YA podéis poner la NUEVA CONTRASEÑA, una que podáis recordar, os pide que la repitais y ¡LISTO!.

Con estos pasos, no deberías tener problemas de seguridad, de todas formas, desde MUY PERSONAL os iré informando de nuevas amenazas y de como solucionarlas

Sjundeplatsen tog en av mina personliga favoriter. Men samtidigt en lite konstig favorit. Det är ett av de första programmen jag brukar slänga in i en Windows-burk, för att göra den någorlunda användbar. Men det är första gången jag langar in programmet i Ubuntu, bara för att ta skärmbilderna. Det är också ett program med ganska hög nördfaktor eftersom man måste kunna styra Ubuntu och andra linuxar med kommandon för att ha någon nytta av det. Sjundepristagaren är Putty.

Det är alltså ett program som gör att du kan fjärrstyra Linux- och Unixmaskiner via SSH (eller Telnet, men det bör du undvika av säkerhetsskäl). Super-praktiskt när maskinen man vill jobba med finns på annan ort, i en kall och bullrig serverhall eller står illa till under teven.

Jag vet inte riktigt varför man vill installera det här programmet i Ubuntu, där finns både ssh och telnet som kommandon och man behöver ju ändå kunna använda kommandon när man har loggat in sig på andra sidan. Programmet finns i alla fall i förråden. Övertala mig om ni kan

I Windows är programmet en självklarhet för serveradministratörer, webbutvecklare och många andra. Programmet är tokenkelt att “installera”. Tanka ner putty.exe, lägg filen där du vill ha den och dubbelklicka på den.

Är du nybörjare och vill komma igång med  Putty, får du här en fusklapp som bonus.

Läs även andra bloggares åsikter om Putty, De bästa gratisprogrammen, öppen källkod, fri mjukvara, Linux, Windows, ssh

No modelismo é muito comum o uso de massa para fechar fendas, já escrevemos um artigo sobre isso. Esse tipo de massa é popularmente chamado de “Putty”. Aqui falaremos de diversos tipos de putty, bem como substitutos mais baratos para o mesmo. Além disso, daremos dicas de como obter melhores resultados usando cada uma dessas massas.

A massa Putty é uma massa plástica, solúvel em acetona (também pode dissolvida em cola Líquida), que serve para vedar as frestas resultantes da montagem do modelo. Existem vários fabricantes de putty. A principal diferença entre eles é a consistência da massa, tempo de cura e dureza final. O tempo de cura pode ser desconsiderado, uma vez que é ideal deixar a massa secar pelo menos por 24 horas. Eis alguns fabricantes e marcas:

• Plasto: Fabricada pela Revell Alem. Ela não é muito homogênea, pois tem a tendência de separar a parte líquida da massa. Tem um tempo de secagem muito rápido, portanto, você só deve tirar do tubo a quantidade que vai precisar e para lixar deu um pouco de trabalho. Tive que lixar inicialmente com lixa d’água 360 e depois com a lixa 500.
• Mr. Putty: É uma massa bem grossa e com um tempo de cura relativamente bom. O problema é que ela fica muito dura e quebradiça. Uma lixada mais pesada pode trincar e necessário reiniciar todo o trabalho. Precisa ser lixado sempre com lixa fina (maior que 400) e por isso o trabalho pode demorar.
• Testors: É uma marca bastante conhecida e fácil de encontrar. Sua qualidade é considerada boa. É mais maleável que a Mr.Putty, mas também exige cuidados na hora de lixar. O ideal é sempre diluir com acetona ou cola líquida (também da Testors).
• Hobby Cores: O custo do putty é relativamente alto por ser um material importado, incidindo a toda a sorte de impostos, frete e outros acréscimos. Entretanto a Hobby Cores, fabricante nacional de tintas, lançou recentemente no mercado a sua massa putty. Ainda não esta disponível em muitas cidades, pois ainda é lançamento e não ficaram bem conhecidas do público.
• Outros: Existem ainda muitas outras opções que não tive oportunidade de testar, como Tamiya e Humbrol.

SUBSTITUTOS:

Um plastimodelista não se deixa abater pelos altos preços e chega a inventar vários expedientes para contornar o seu problema. Aqui algumas soluções caseiras:

• DUREPOXI e CREME NÍVEA: A técnica consiste em unir primeiro as duas partes do Durepoxi até formar uma mistura uniforme e logo em seguida ir acrescentando o Creme Nívea. Fiz a experiência e constatei que a aderência foi reduzida e ficou mais pastoso, fácil de trabalhar. Usando os dedos e uma espátula, ou aquelas ferramentas metálicas de dentista, é possível esculpir detalhes e preencher os espaços vazios com perfeição. O melhor é que o resultado fica tão bom que não racha nem é preciso lixar.
• COMBI FILLER: Outro material que caiu no gosto de vários modelistas é uma massa plástica para pequenos reparos em pintura chamada Combi Filler. Ela nada mais é do que um putty automotivo, também solúvel em acetona, que permite o lixar. Segundo os meus contatos ele vem em um tubo tipo pasta de dente de 200 gramas.
• DAS: Também existe uma espécie de massa para modelar, encontrada em casas de artesanato conhecida como cerâmica fria, pois ela pode ser moldada ao ar livre, sem precisar ir ao forno como a cerâmica tradicional, é vendida pelo nome comercial de massa DAS. Entretanto, ainda é cedo para afirmar que ela seja um substituto perfeito ao putty, embora na sua embalagem conste a informação que pode receber após a secagem, tinta a base de água (acrílica), tinta guache ou vernizes (esmaltes). Essa massa, eu ainda preciso pesquisar para ter uma opinião correta.
• MASSA RÁPIDA: Há também quem use a chamada massa automotiva para serviços de funilaria ou conhecida como Massa Rápida. Ela tem esse nome devido ao seu tempo de secagem ser muito rápido (até meia hora) podendo ser lixada com lixa d’água.

SUBSTITUTOS “SUBSTITUTOS”:

Esses abaixo, eu não pude testar, ou então não deram certo. Você também pode tentar e ver se consegue um resultado melhor:

• REJUNTE DE AZULEJO: Não deu muito certo, pois fez a maior lambança e não consegui acertar o ponto da consistência.
• TINTA ACRÍLICA BRANCA: Vendida em casas de artes. São pequenas bisnagas de tinta, que secam muito rapidamente. Deve ser aplicada com espátula e requer um bom cuidado.
• MASSA DENTÁRIA: Encontrada em lojas de produtos odontológicos. Por ser um material de precisão e especializado, ‘e possível que seu preço não seja muito convidativo.

Fonte: Schnauzer Plastimodelismo

A while ago the rather Lovely Teresa blogged a simple humbling idea that I was lucky to be part of which was the idea of paying it forward. Over at Teresa’s blog she asked for people to leave a comment and the first three people would receive such unpredictable gubbins through the post. See, I told you the idea was Lovely didn’t I?

And after my emotional return from Shropshire I found the parcel Teresa had sent me filled with stuff to warm my cockles. I promised I’d blog the gradual ascension of the goods she gave me so without further a do I now have photographs:

Inside of which was a Lovely card:

Polite Demands Were Held Inside

Of which asked of me to share the Lovely things I’d been given and of course I shook my head vigorously (even though there was no one in the house to see). Then to the delights I had in store…

TA DA!

In time for Christmas I have my own dinky Grow Your Own Christmas Tree of which the progression of my mini beast will be well documented on here. Here’s hoping it will not grow too tall. Then some bouncing putty which I LOVE! I’ve bought this as a gift many a-time for other people but never had some to myself. YES! It’s fun, that much I know is true. And then last but not least I have miniature clay of wonderous colours. It’s called Toy Clay but I like to call it MY Toy Clay. I’ve decided that after finding out my impending surgery date for gallbladder extraction is 4th December I will keep this close to hand to while away the quiet time I’ll have to be stuck in bed. Oh right, I know how to recuperate!

So my paying it forward time has arrived. Come one, come all… the first three people to leave a comment (preferably a nice one, I don’t want my happy bubble burst just yet) will get some small Loveliness sent their way. On the condition that, as I have just shown and stuck to, you must spread it on to people too. Share the Lovely things!

Building a Linux server is a fairly simple affair. If you’re anything like me, you had some old hardware lying around which you shoved into a cheap case, stuck a copy of Debian/Ubuntu/Fedora/Whatever on it, and bob’s your uncle.

But once it’s up and running, should you dedicate a monitor/keyboard/mouse to a computer you barely use? Or is there another option?

Thankfully, one thing Linux has in spades is Options.

Today I’m going to deal with X11 forwarding over SSH. As you may know, SSH is one of the primary ways of connecting in to your Linux server, but it’s normally used for terminal commands – something some people aren’t all that comfortable with.

X11 forwarding over SSH allows the display of any programs you’d normally run from within a Gnome or KDE session to be displayed remotely, with only a few steps to make it possible.

Requirements.

First up, you’ll need an SSH client for your current machine. If you’re using Windows, the best option in my opinion is PuTTY, as it’s free and easy to use. On Mac, your SSH client comes built in, and is called ssh.

Next, we’ll need an X server. Windows-wise, there are a couple of options such as XWin32 (commercial software) and XMing (freeware). As I’m a cheapskate, I’m going with XMing. Again, Mac users have this preloaded providing you installed X11 when you installed OSX.

Windows Howto.

So, first step. Install PuTTY and fire it up. You should see a window like this:

The Host Name or IP Address field is the important one here. Enter the name or IP address of your Linux computer. Leave the port at 22 (unless you’ve changed the default SSH port), then click on SSH in the tree on the left hand side.

Turn on compression to speed up your connection, and bring Blowfish to the top of the list. Blowfish is still relatively secure, but will be a heck of a lot quicker than AES at passing information as your computer doesn’t have to encrypt things so heavily.

Next, click on X11, and turn on “enable X11 forwarding.” You can also modify the display number if you intend to have multiple machines displaying at once, but I usually leave it as default (display 0).

Finally, let’s go back to the session option at the top of the tree and save our session so we don’t have to type this stuff in every time. I’ll call this connection ‘mycomputer’ and press save down the bottom. Then it’ll appear in the bottom window next time I start PuTTY.

Ok, go ahead and click the Open button in the bottom right corner to connect to your machine. You’ll be greeted with a username/password prompt. Use your standard user login, though – as root logins over any remote connection are a serious no-no.

Good, so we’re now connected via SSH and X11 forwarding is enabled. But we can’t run anything just yet, as we don’t have a local X server to display the information we’re after.

So after installing XMing, I’m going to start it using XLaunch, which can be found in your start menu. There are essentially two main options for us to use. First, we can use multiple windows, which will allow us to run single programs within Windows, kind of like VMWare’s Unity functionality. We’ll try that one first.

The next screen gives us the option to start a client, which essentially we’ve already done with PuTTY. You can select another option, which will use an embedded version of PuTTY to connect to the remote machine transparently and fire off a command, but that’s a howto for another day. For now, we’ll leave it off.

Next up is some advanced stuff about font servers which we won’t worry about at this stage.

And finally the option to save your connection as and .xlaunch file should you want to run it again in the future. Save if you want to, then hit ‘finish’.

Once you do, it’ll disappear and you’ll notice a new X logo in your task tray. This means that the X server is now running and ready to accept commands. Go back to PuTTY and we’ll give it one. In PuTTY, I’ll type ‘firefox &’ – the ampersand breaks the process off and lets it run on its own so we can continue using the terminal.

Holy cow, Batman! Remote Firefox!

So running one program at a time is fine, but what happens if we want a full desktop? First thing we’ll do is close our current XMing session by exiting any open programs, right clicking on the X in the tasktray and selecting ‘exit.’ Then we’ll fire up XLaunch again to select a different X server layout.

I’m going to choose ’single window,’ as I prefer to have remote sessions locked a way somewhat.

Hit next all the way through and press finish. You’ll be greeted with an ugly gray crosshatched window.

That’s what an X server looks like when it’s not rendering anything, so there’s no need to panic. But let’s put something up there to cover the blandness.

Back in PuTTY, type ‘gnome-session &’ if you’re a Gnome user, or ‘kde-session &’ if you’re a KDE person. It’ll send a command off to your other computer that it’s to launch your main desktop environment, and after a moment it’ll display like this.

So that’s the ins and outs of connecting to your Linux machine via a seamless X11 forwarded session.

Mac Howto.

Oh, if you’re a Mac user, I probably should tell you how things are done. It’s pretty difficult, so maybe you should all go grab your security blankey right away.

First, open up a terminal session by browsing to your applications folder, then the utilities folder, and clicking on Terminal.

Type the following command:

ssh your.server.ip.address -XC

The X enables X11 forwarding, and the C enables compression.

Once you log in, all you need to do is fire off some commands like ‘firefox &’ and you’re away. Easy, huh?

Remotely possible?

The last thing I’d like to note is that this option is also quite possible over a remote connection (say, from the office so your boss doesn’t know what you’re  browsing). All you need to do is set up some port forwarding on your router and point port 22 at the IP address of your Linux server. Then from the office, fire up PuTTY and enter the public IP address of your internet connection.
Enjoy!

Putty เป็น Telnet/SSH Client ที่ผมมีความจำเป็นต้องใช้บ่อยๆ และบางครั้งต้อง ปรับ config บ่อยๆ แล้วบางย้ายไปทำงานอีกเครื่องต้องมาคอย config ใหม่ เลยลองหาดูวิธี Backup Putty Config ซึ่งก็ไม่ผิดหวัง

Putty นั้นเก็บ Config ไว้ใน Registry ซึ่งวิธี Backup นั้นก็ไม่ยากเลย

วิธีแรก ใช้ Command Line ที่มา http://pank.org/blog/archives/000519.html

โดยการเปิด Command Prompt แล้วพิมพ์คำสั่งต่อไปนี้

regedit /e  <putty.reg path> HKEY_CURRENT_USER\Software\SimonTatham เช่น

regedit /e c:\\Windows\\Temp\\RegFiles\\PuTTY.reg HKEY_CURRENT_USER\Software\SimonTatham

แล้ว copy file Putty.Reg ไปอีกเครื่อง แล้ว Double Click ก็เรียบร้อย

วิธีที่สองจะเป็นการใช้ GUI โดยเรียก RegEdit เพื่อทำการ Export file Putty.Reg ออกมาเช่นกัน วิํธีทำพร้อมรูป ดูได้ที่นี่ครับ

http://www.downloadsquad.com/2007/02/01/howto-transfer-your-putty-settings-between-computers/

Boooooooooooo

Up early armed with live prawn gathered the night before, 3 bites all Cuttle I guess as all headless.

Blowing its tits off and freezing cold.

More and more I’ve found myself managing linux systems and as a result modifying files using vi. For whatever reason, it really took me a while to wrap my head around vi. Now it seems silly to think  back to when I found it confusing. I thought I’d put together a quick vi in two minutes tutorial for anyone who may be having the same issues.

I am typically just opening a file in vi, editing it and saving it. In this post I will just outline the commands needed to do this proccess.

vi /path/to/your_file.txt

This should bring up the contents of the file onto your screen. The next command you’ll want to do is pressing the i button on the keyboard. This will enter you into ‘insert mode’ that will allow you to edit the file.

Press i button

Once you are finished with your edits simply press the escape button.

Press ESC button

Now you’ll just enter the :w command to save the file.

:w

Then you simple enter the :q command to exit and you’re all done.

:q

The only other command I find myself using is :q! which allows you to exit without saving changes.

So there you have it, basic file editing in vi. Things can get a lot more advanced but I’ve found that this is the process I go through 99% percent of the time.

Apa sih sebenarnya Putty itu…??? Hmm… sebenarnya sayang kalo orang IT gak tau kegunaan dari Putty. Begini ya…tapi sebelumnya siapkan secangkir kopi hangat dan kalo biar lebih sedap di campur dengan susu kental manis…. sehingga otak pun menjadi fresss ^_^

Ok..langsung aja.. Putty merupakan salah satu software yang digunakan sebagai SSH client pada Platform Windows. Biasanya yang menggunakan software Putty adalah seorang administrator dan seorang Hacker.

Putty juga bisa digunakan untuk menjalankan PsyBNC, telnet dan lain-lain. Agar anda dapat memahami lebih jelas kegunaan dari Putty, download artikel di bawah ini (artikel dari Neotek).

Aplikasi Putty

Artikel penggunaan Putty

PsyBNC

Uzunca bir aradan sonra tekrar merhaba. Bugün benim çok hoşuma giden yeni bir linux macerasından söz edeceğim. Bu yazıdaki anlatılanları uygulayabilmeniz için sanal işletim sistemi çalıştırabilecek bir bilgisayara virtualbox ve ubuntu server 9.04 cd ye ihtiyacınız olacaktır. Amacımız gerçek bir Linux serverin bize verebileceklerini sanaldaki sistemimizden alabilmek. Filezilla, Putty ile bağlantı yapmak ve server üzerinde çalışan Apache sunucusunu bizim sistemimizden çalıştırabilmek.

Her zaman windows işletim sisteminden kopamayan ama elinin altında bir linux kurulumu olmasını isteyen birisi olmuşumdur. Üniversitede okutulan dersler ve sektördeki bazı işler windows kurulumunun olmasını zorunlu hale getirebiliyor. Hal böyle olunca linux üzerinde ihtiyacınız olan tüm programların düşük performanslı çalışan windows eşdeğerlerini bulmak zorunda kalıyorum. Bugün VirtualBox üzerinde ubuntu 9.04 kurulumu için kolları sıvadım. Kurulumu önceden defalarca yaptığım için fazla zorluk çekmedim.

Kurulum notu: Ubuntu server kurulumunda LAMP(Linux Apache mysql Php), Tomcat6, OpenSSH kurulumu yapmanız aşağıdaki örnekleri gerçekleştirmek için gerekli olacak.

VirtualBox üzerine bir Ubuntu Server kurduktan sonra ilk yapmamız gereken serveri kapatmak. Daha sonra
C:Users{user_name}.VirtualBoxMachines altında servera verdiğiniz isimde bir XML dosyası olacaktır. bu dosyada
<ExtraData> anahtarları arasına aşağıdaki anahtarları ekleyeceğiz.

<ExtraDataItem name="VBoxInternal/Devices/pcnet/0/LUN#0/Config/ssh/HostPort" value="2222"/>
<ExtraDataItem name="VBoxInternal/Devices/pcnet/0/LUN#0/Config/ssh/GuestPort" value="22"/>
<ExtraDataItem name="VBoxInternal/Devices/pcnet/0/LUN#0/Config/ssh/Protocol" value="TCP"/>
<ExtraDataItem name="VBoxInternal/Devices/pcnet/0/LUN#0/Config/apache/HostPort" value="8888"/>
<ExtraDataItem name="VBoxInternal/Devices/pcnet/0/LUN#0/Config/apache/GuestPort" value="80"/>
<ExtraDataItem name="VBoxInternal/Devices/pcnet/0/LUN#0/Config/apache/Protocol" value="TCP"/>
<ExtraDataItem name="VBoxInternal/Devices/pcnet/0/LUN#0/Config/tomcat/HostPort" value="9090"/>
<ExtraDataItem name="VBoxInternal/Devices/pcnet/0/LUN#0/Config/tomcat/GuestPort" value="8080"/>
<ExtraDataItem name="VBoxInternal/Devices/pcnet/0/LUN#0/Config/tomcat/Protocol" value="TCP"/>

Bu kodlar ile portları eşleştirmiş oluyoruz. anahtarlarda geçen tomcat- apache- ssh isimlerinin bir önemi yok. Yani istediğimiz kadar port eşleştirmesi yapabiliriz. Dikkat etmemiz gereken nokta host ve guest olarak verdiğimiz portların host değerlerinin bizim bilgisayarımıza, guest değerlerinin de server sistemin portlarına işaret ettiğini bilmek. Diğer bir konu da bilgisayarımızda kullanılan portları kullanmamak. Eğer sistemimizde bir tomcat kurulumu varsa 8080 portu boş olmayabilir. Bu durumda başka bir değerle değiştirmesiniz.

Sanal Ubuntu Serverı şimdi bu ayar dosyasına göre başlatırsak ve eğer hata mesajı ile server kapanmamışsa yaptığımız değişiklikler çalışıyor demektir.  İlk olarak 2222 portunu Putty ile test edelim.

Host olarak her zaman 127.0.0.1 ya da localhost kullanacağız. Gördüğünüz gibi artık uzak bağlantımı sağladım. Sanal makina bana ne kadar da uzak değil mi :=)

Diğer işlem de yine SSH kullanarak Filezilla ile linux dosya yapısına erişmek.

Burada sftp:// protokolü ile erişildiğine dikkat etmelisiniz. Kullanıcı adı ve şifre linux oturum açma bilgileriyle aynı. Her alana yazamayacağınızı da hatırlamanız gerek. Eğer bir dizine yazma hakkı elde etmek istiyorsak chown kullanabiliriz.
(sudo chown -R kullaniciadi /var/www/  ) gibi.

Apache ile Php sayfalarını çalıştırmak için de Filezilla ile bağlanıp /var/www/ altına php dosyalarımızı atabilir ve http://localhost:8888 yolunu izleyerek windows sistemimizden sonuçları görebiliriz. Apache Tomcat için de yine aynı şekilde servlet çalışmalarımızı http://localhost:9090 adresinden tests edebiliriz.
Tomcat için jsp sayfalarımızın bulunması gereken adres:
var/lib/tomcat6/webapps/ROOT/
Benim bilgisayarımdan ekran görüntüleri:

Buradaki linux server sanallaştırmasının gerçeği ile herhangi bir farkı olmadığı düşüncesindeyim. Linux dolu günler dilerim :=)

Linux is like a tepee. It has no Windows, no Gates, and there is an Apache inside

Thought I would try with plugs as I have been doing Ok.

Not a touch, may try again tomorrw with prawn.

Arrived nice and early and not a touch for about 3 hours.

Relcoacted twice and ended up where I caught the other week.

A chap and his lad came right next to me and started fishing the lad was literally on my elbow, I said I was amazed that an are the size of where I was and he and his lad stood right next to me, as I cast I nearly had his head with my hook.

He went on about plenty of room and no bother, as I cast again and my prawn whizzed past his eyes, totally thich as Fk!!!!

Anyhoo he was catching little gobies and I reeled in 4 Bass just legal size about 1.5lb but I put them all back.

Good morning really as I christend my new Rod 4 times.

Not detered by my inability to catch a lot this morning I headed for my local mark after a Bass from 18:00 – 21:00.

I had a load of prawns left over so floated them on a Star light, which was tricky tosee to say the least.

Had 1 small pollock and one small whiting, no bass.

Met Mark at 07:30 and launched from Torquay, flat calm sligt swell initially, which got worse as the day went on.

Mark had a Bass of about 2lbs and a pollock, Ijust had a small Polock.

Got a bit choppy so we landed and went to a local mark with plugs nothing doing so we gave up about 1pm.

Arrived at 07:30 with about 40 prawns broke my net handle in the process of gathering them last night, chilly northery wind and a bit of a choppy sea.

1st cast was iffy so recast and bang float went under, after a nice little scrap I landed this lovely Bass 1lb 15 oz, my PB was 2 lbs and I was determind to beat it, 2 oz better and I would havebeen a happy bunny!!

Didnt set up the pic the sun just bounced of it lovely!!

Had a couple more casts and all yielded a bite, but headless prawns = Cuttle so I am told, about the 5th cast a Pollock of about 1lb came to me.

Quite chuffed I carried on and still was getting a bite a cast, landed 2 Wrasse best about 2lb, and got grounded by 2 others which took me straight down to the rocks/kelp.

The wind almost instantly swithed to Easterly and no more bites for abut 10 casts, time to move to a more sheltered area.

Had a few casts and caught another Bass of about 1lb 6oz he swallowed the hook and bled out tried to swish him in the water but he was a gonna. One of my aims was to catch more than 1 Bass in a session, so that was now acomplished.

Had a few more casts and the float went under again, I hit it and SNAP, the tip of my rod (5 section Shimano Exage) snapped above the spigot, what felt like a brick started to move!! had a brief struggle and knew Mr Bass was having a play on the end of the line, felt a bit bigger looking to the water with my polaroids on I saw him and he looked a bit better, perhaps bigger than my 2lb target, a friendly chap netted it for me and he weighed in at 3lb 15oz.

Chuffed as F**k!!!! The best days shore fishing for me so far.

New target more than 4 in a session and one over 4lbs, will I achieve this in whats left of 2009, I’ll try!!!

Now if you are planning to get Window 7, you will probably be wanting to do a clean install (and you have to if you aren’t currently running Windows Vista), then I just stumbled onto a service called Volery.
This makes it easy to install programs (although at the moment the only programs are ones I would call ‘essentials’, so browsers, instant messaging, media, imaging, documents, anti-virus, run-times (i.e. flash, java), file-sharing, utilities etc.

All you do is simply click on the relevant boxes, and click “get installer”. Then all you have to do is set up an account, using the demo code: howtogeek with your email, and a password (please for the love of God, tell me you don’t use the password, “password” – if you do, YOU’RE AN IDIOT and you don’t deserve to use the internet).

Some of my essential programs on it - like WinSCP and PuTTY

Anyway, I think that’s probably posting done for today – today’s been a pretty good day

Arrived at 7 with a load of Prawn, just one Schoolie and a couple of mackerel.

Chap next to me had 4 2 schoolies and 2 better of 2 & 3 lbs.

L'Oreal Paris Studio Overworked - Hair Putty

On my way back from a long weekend in the Poconos, where for some crazy reason I decided to get my amazing hair cut, my hair products were confiscated at the airport. As I had to wake up for work in about 10 hours, I had no time to run out and grab some products. Well fast forward four days later, I found myself at Publix grabbing a sub (mmm sub).. when I figured it was time to go grab some products to replace my recent loss. The selection at this particular Publix was pretty sparse, so I grabbed a few items .. one of which I’m testing as we speak.

OVERVIEW:
I’ve been in a kind of natural-but-stylish look mood over the past month, so I’ve found myself using more pomades, pastes, and putties. The product seemed a bit hidden on the shelf, as it had no real branding, or crazy 80’s colors … just a simple, circular-white container about 1″ tall with 1.7oz of product. But hey, I’m not a sucker for gimmicks and bright colors, some of the best stuff I’ve used has been under a dollar. For about $4.00 I figure I’d give it a shot. As I said before the container is no frills; basically all white with a clear twist off cap.

There are two things I instantly noticed when I opened the product: 1. Smell 2. Amount of product in the container. The smell was actually refreshing; no crazy pheromone scent or ridiculous stink like some CREW products, almost a high end salon smell. The amount of product in the container left much to be desired. You would think for such a tiny container they would fill it up almost the full inch, but surprise – imagine a new bag of chips filled up only 1/2 the way. But hey, there is no standard protocol on how much needs to be packaged … if the product is really good I think I can surpass my initial shock.

INITIAL USAGE:
I really didn’t know what to expect as I took a ‘dime-size’ finger full, and rubbed it in my palms. The product feels a bit to silky to be considered a putty, more of a quasi putty-cream. After rubbing it in my hands for about 5 seconds it  softened up considerably more. After throwing it in my hair, and styling as I went I wasn’t very impressed. However, after a minute or two of styling and teasing, it became much better and I became happy with the results. I was able to get that freshly towel dried hair look and style my hair as I wanted it. After a few tries of doing some crazy hair doos, I gave up on attempting to use this for anything aside from the textured-semiflat look. I thought I needed a bit more product on the rear of my head, so I took about half a dime size and threw it on .. not a good idea. While the product helped a bit more with how I wanted my hair to look, it really took away from that natural/soft feeling … not terrible, but something to note. Also worth noting, this product didn’t mush my hair together, rather it kept my hair styles original textured look.

POST USAGE:
Well after about 8 hours of wear, I noticed the products original great attributes diminish a bit. My hair was still manageable and pliable, but it didn’t have that initial ’soft-hold’. It kind of just started to fall flat and lose volume, however it still maintained its textured appearance. Overall I’m fairly happy with the product, it kept my hair soft throughout the day and held up pretty well. Additionally I only needed to use a relatively small amount to style my hair.

RATING:
Smell = 8
Texture of product = 9
Hold = 8
Abuse Test = 7
Perceived value of product = 8
Opposite Sex Approval = 7
Stickiness (Note :higher = less sticky) = 9
Usability after sleep = 4
Total score = 7.5
Photos:

Initial Usage:

Initial Usage 1 - L'Oreal Paris Studio Overworked - Hair Putty

Initial Usage 2 - L'Oreal Paris Studio Overworked - Hair Putty

Initial Usage 3 - L'Oreal Paris Studio Overworked - Hair Putty

Post Usage:
TO BE POSTED

Ja, ich hab mir auch ‘nen VServer zugelegt. Warum?
Nun, es bietet die Möglichkeit so ganz nebenbei einen eigenen Teamspeak-Server laufen zu lassen, falls man mal mit jemand quatschen will, beim Entwickeln der nächsten OpenSource, beim Spielen von irgendwas, oder auch einfach mal so. Und wenn man mag, kann man auch noch seine Homepage oder so Zeugs drauf packen. Außerdem ist ein VServer im Grunde nicht teurer als ein weiterer Rechner, der zuhause nur rumsteht, Strom frisst, Lärm produziert und Platz wegnimmt.
Nun zeigt sich aber leider die Problematik, daß das gute Stück im Zusammenspiel mit PuTTY/Xming nicht so ganz gerne X11 Anwendungen auf den heimischen Windows-Rechner bringen mag.
Das grausamste Szenario bleibt, nach jedem Login auf dem Unix-Rechner im Internet, mit der Hand die $DISPLAY-Umgebungsvariable setzen zu müssen. Das nervt natürlich gewaltig, zumal Umgebungsvariablen, wie $SSH_CLIENT und $SSH_CONNECTION in der Regel bereits richtig gesetzt sind. Leider hat PuTTY jedoch Probleme die aktuell korrekte dynamische IP-Adresse für den eigenen DSL-Zugang richtig zu erkennen und entsprechend auf dem Zielsystem zu setzen.
Pfui, PuTTY!

Nun, es gibt dennoch einfache Lösungen für diese Problemstellung, die uns das manuelle Setzen der $DISPLAY Umgebungsvariable einfach machen. Hier eine recht simple Variante davon, vorausgesetzt, die $SSH_CLIENT Umgebungsvariable ist bereits korrekt gesetzt, was jedoch in der Regel der Fall ist, da diese das Zielsystem evaluiert wird, nicht durch PuTTY selbst.
Zunächst extrahieren wir aus $SSH_CLIENT unsere korrekte aktuelle IP-Adresse mit einem kleinen Programm, welches daraus eine “DISPLAY=client-ip:0.0″ Zeichenkette formt und diese auf “stdout” zurückliefert. Die Verwendung von putenv() oder setenv() zwecks direktem Setzen der Umgebungsvariable hätte an dieser Stelle nicht die gewünschte Wirkung.

Der zweite Teil der Lösung ist, unseren generierten $DISPLAY-String in die Umgebung zu schubsen. Das machen wir am besten im “.profile“, welches beim Login ausgeführt wird.
Für eine bash-Shell, wäre das z.B. eine Zeile wie, “export $(./evaldisp)“, wobei “evaldisp” unser kleines Programm wäre, welches die $DISPLAY-Zeichenkette liefert. Die Zeile “export $(./evaldisp)” bewirkt, daß zunächst unser kleines Programm “evaldisp” ausgeführt wird und die zurückgelieferte Zeichenkette “DISPLAY=…” als Variable für den “export” in die Umgebung verwendet wird.

Wenn wir nun nach dem Login in unseren gemieteten Unix-VServer ein X11 Programm aufrufen, müssen wir nicht mehr nachsehen, welche IP Adresse wir aktuell haben und diese mit der Hand setzen, sonder ein simples “xterm”, “emacs” oder “xeyes” reicht nun völlig aus, da die Umgebung bereits das $DISPLAY über unsere kleine Hilfestellung korrekt gesetzt hat.

Und nicht vergessen zuhause Xming laufen zu lassen… man möchte ja auch die X11-Anwendung auf dem Desktop sehen können

Hier ein C-Beispiel für unser “evaldisp” Programm, das wir mit “cc evaldisp.c -o evaldisp” compilieren können:

/* evaldisp.c */
#include "stdio.h"
#include "stddef.h"
#include "stdlib.h"
#include "string.h"
int main( int argc, char* argv[] )
{
char buf[512];
char* pc1 = getenv( "SSH_CLIENT" );
char* pc2 = strchr( pc1, ' ' ); /* get end of IP address */
*pc2 = '0'; /* set end of string */
memset( buf, 0, 512 );
sprintf( buf, "DISPLAY=%s:0.0", pc1 ); /* create $DISPLAY string */
*pc2=' '; /* set back to original value*/
printf( "%s\n", buf ); /* return $DISPLAY via stdout */
return EXIT_SUCCESS;
}


Alternativ hier noch eine Variante, bei mittels Python, anstelle von C, die IP-Adresse aus der Umgebungsvariable $SSH_CLIENT filtert:

#evaldisp.py
import os
s1 = os.getenv("SSH_CLIENT")
l1 = s1.split(' ')
print "DISPLAY=%(ip)s:0.0" % { 'ip':l1[0] }

Ensprechend lautet der Aufruf in “.profile” dann, “export $(python evaldisp.py)“.

~~~Nachtrag:

Und der Vollständigkeit halber, ich wurde darauf hingewiesen, man könne unter Verwendung von awk die Problematik auch in einem Einzeiler in .profile formulieren. Danke für den Hinweis und hier die entsprechende Zeile:

export DISPLAY=$(echo $SSH_CLIENT|awk ‘{print $1 ":0.0"}’)

This article is part of on-going Software For Geeks series. PuTTY is hands-down the best, free, and lightweight SSH client for Windows. I have provided list of 12 powerful PuTTY add-ons with screenshots, that will solve few shortcomings of the original PuTTY.  Play around with these add-ons and choose the one that suites your need.

1. PuTTY Connection Manager

PuTTYCM gives a nice feature to arrange several PuTTY sessions in tabs . While starting PuTTYCM for the first time, you should specify the location of the original PuTTY. This requires .NET 2.0 to be installed on the windows system. Following screen-shot displays three putty sessions in tabs within the same window.

Note: If the PuTTY Connection Manager opens the original PuTTY in a separate window, instead of opening as a TAB, please go to Tools -> Options -> Select the check-box “Enable additional timing for PuTTY capture (ms)” -> set the value to 300 ms. This will open the PuTTY window inside the TAB as shown below.

Note: Refer to the PuTTY Connection Manager Tutorial for more details on the PuTTY CM features.

2. PuTTYcyg

Cygwin users will absolutely love PuTTYcyg. This lets you use PuTTY as a local cygwin terminal. If you use cygwin on your windows, I’m sure you’ll hate the default MS-DOS looking cygwin window. Using PuTTYcyg, you can run cygwin inside PuTTY. I love this add-on and use it for my cygwin on Windows.

Got some lovely prawn last night, and up at 6 for hoping to follow on from last week.

Pretty rubbish, one Wrasse about a lb driting near the weed at low tide and 2 floats lost casting too close to weed so time to come home.

OBA (Oracle Business Accelerator) is a relatively new product from Oracle Corp. It aim to boost up the setup process time of Oracle Applications via online questionnaire within a timeframe called Project Work Space (PWS). Once all question is submitted, then you can download the Setup Configuration Tool from Oracle Application that connect directly, wth the authetication system using approved CSI number, etc.

After you download the file, then you must continue the automated setup process. During the setup process, this tool will warn user about setup that need to be fixed, and you can choose to fix or to skip it. This process relatively take some workingdays. Once the automated Setup Configuration Tool is finished, the tools will provide you links about statistics in hours & minutes; what happened during the process; Errorred process; setup that you need to investigate and check again or setup that failed and need manual setup.

One of the error during running the config tool is s_display value in $CONTEXT_FILE doesn’t match the vnc or xmanager display value.
Once corrected, you’ll be told to run AUTOCONFIG and resume the Setup Configuration Tool. This error cannot be skipped as the Setup Config Tool will prompt you the same error message each time you resuming.

I checked inside the context file (Application context file, NOT the Database context file since display should have nothing related with the database). The value of s_display is already correct =[hostname]:1.0 ( Read metalink note 467549.1 ) the hostname is the server’s IP address.

You could do the trick using a broadcast and Xstart (from Xmanager) or from VNCviewer these application type is different from application like putty, WinSCP or secureCRT. Using Putty for example, when you close the window, your session is “over” in the server, but using VNCviewer, eventhough you have shutdown your PC, then if you login again, your server session is still “alive” unless you have issued command such as logout or reboot.

The trick is simple,  using VNC viewer, open a terminal then login using root. type :

$ export DISPLAY=[your_server_hostname]:1.0

$ xhost +

or

$ xclock

if the clock is displayed then you have done right, just shutdown apps services, run autoconfig and resume the Configuration Setup Tool.

note : to detemine your_server_hostname value, just type hostname in the terminal, the result is what should be set as s_display environment variable value in the $CONTEXT_FILE.

SCP is a powerful tool introduced in IOS 12.2(2)T which allows us to securely transfer files to and from our routers. With this feature we can transfer files, images and configurations in an encrypted way, and we can also authenticate accesses on the routers.

It’s easy to deploy, easy to use and Cisco recommends to use it in the Guide to Harden Cisco IOS Devices too: why do not use it?!

It relays on SSH and AAA, so both features have to be enabled on the device:

Router(config)#hostname R1
R1(config)#crypto key generate rsa general-keys modulus 512
The name for the keys will be: R1.mydomain

% The key modulus size is 512 bits
% Generating 512 bit RSA keys, keys will be non-exportable...[OK]
R1(config)#
R1(config)#aaa new-model
R1(config)#aaa authentication login default local
R1(config)#aaa authorization exec default local

In order to use scp to manage configuration we must have an user account with enough privileges to access it:

R1(config)#
R1(config)#username admin privilege 15 secret 0 topsecret

Finally, we can turn the scp server on:

R1(config)#ip scp server enable

On the client side we can use an utility such as pscp, from the PuTTY suite, to interact with our SCP server – the router!

C:\>pscp.exe
PuTTY Secure Copy client
Release 0.59
Usage: pscp [options] [user@]host:source target
       pscp [options] source [/source] [user@]host:target
       pscp [options] -ls [user@]host:filespec
[cut]

For example, we can download the startup-config and put it on a directory:

C:\>pscp.exe admin@192.168.0.42:nvram:startup-config C:\MyConfigs\R1.cfg
admin@192.168.0.42's password:
R1.cfg                    | 0 kB |   0.6 kB/s | ETA: 00:00:00 | 100%

C:\>

Using an integrated AAA system, such as a Radius based AAA with IAS and Active Directory as backend, we can also omit the username part and use our own domain password!

Dear TFTP & Co., it’s time for retirement!

References

Cisco.com: Cisco Guide to Harden Cisco IOS Devices

Cisco.com: Cisco Secure Copy (SCP) Feature Guide – 12.2T

PuTTY: PuTTY: A Free Telnet/SSH Client