Tags » Server Administration

NTP Client And Server in Centos/RHEL System

The Network Time Protocol (NTP) is used to synchronize a computer’s time with another reference time source. Under CentOS / RHEL you can use NTP or OpenNTPD server software. 570 more words


Checking Performance of Server

We can easily calculate the performance of a system by looking at their specifications and the data stored in the system. Windows 7 is one of the complex systems in the world and it is used in millions of computers all over the world. 467 more words


When .NET wants to be 4.5.2

Someone in the application group said that they wanted .NET downgraded from 4.5.2 to 4.51. I did as I was asked and then in the next few days, I got another call telling me that 4.5.2 was back.  92 more words

Server Administration

Resolving GuestAdditions version mismatch in vagrant/homestead vm (failed to mount shared folders / modprobe vboxsf failed)

While trying to install homestead machine for Laravel, got some annoying issue: failed to mount shared folders. I had vagrant installed earlier with different version than homestead, causing the problem. 1,004 more words


Accidentally deleted cron jobs :( How to recover?

I don’t know exactly, why on earth crontab default key for edit(-e) and remove(-r) was designed sitting next to each other. Accidentally all cron jobs may be removed by entering -r, while trying to edit. 74 more words


Remote Server Menggunakan Telnet + Simulasi Keamanannya

Yo semua!

Di Jumat Varokah ini, di post ini, gue akan memposting tugas Pelajaran Admin Server gue. Remote server menggunakan telnet, sekalian simulasi keamanannya.

Dalam pengerjaan tugas ini, gue dibantu oleh salah seorang temen gue, Radiansyah Akbar. 560 more words

Server Administration