Tags » Syslog

cf-deploy v2 released

I took some time this weekend to release an update for cf-deploy. You have now the option to override the configuration hardcoded in the script by means of environment variables. 109 more words


Upgrading to VMware vRealize Log Insight 4.0.0

In case you didn’t notice, vRealize Log Insight 4.0.0 has been released earlier this week and is available for download. This article focusses on the required upgrade steps. 549 more words


OpenBSD | newsyslog | postrotate command

Your daemon doesn’t write to his logfile after rotating log using newsyslog? You are executing a postrotate command in newsyslog.conf?
The reason for this strange behaviour is that in case of executing a postrate command per definition (rtfm newsyslog.conf) no SIGHUP will be sent to syslogd. 31 more words


How to fix empty system log ("syslog") on Linux

If your system log (“syslog”) file is empty something is probably wrong. Under normal conditions the system writes to this log all the time and you can easily verify this by executing the following command. 213 more words


Geolocate invalid login attempts with Splunk

I’ve been experimenting with various data visualization methods in Splunk and thought I’d share one that I recently found useful.  Login attempts involving invalid user accounts is something I’ve always tracked in a table listing the username and source IP address. 244 more words


What's new in RHEL7: The Journal

Applications and daemons in Linux will either send logs to syslog or write directly to log files (Apache does that). For years, various implementations of syslog (rsyslog, syslog-ng, sysklogd) have been the sole logging service. 266 more words


250 GB/day of logs with Graylog: The good, the bad and the ugly


  • Load Balancer: Load balancer for log input (syslog, kafka, GELF, …)
  • Graylog: Logs receiver and processor + Web interface
  • ElasticSearch: Logs storage…
  • 2,017 more words