linux, devops, sre, cloud, virtualization, containers, performance tunning, golang…
cisco config archive doing
More or less about archiving router configuration is presented on:
clear ip nat selectively
On cisco router device you can clear all ip nat translations once doing:
hidepid capabilities of procfs
RHEL 5.9 introduces new feature which allow to hide some sensitive information about process activity to non-root users.
Scan for new hard disk
Useful especially in virtual environment to discover hot-added hard disk i.
LinuxCon Europe 2012
Lots of interesting post conference materials: http://events.linuxfoundation.org/events/linuxcon-europe/slides
Perfect nagios plugin ?
How should look like almost perfect nagios plugin ? Look at
Trusted Path Execution - reduce attack vector
TPE is a feature presented in Grsecurity, which denies users from executing programs that are not owned by root.
Apache HTTP Server 2.4 - error logging
Apache 2.4 was introduces couple months ago. Comprehensive list of changes doesn’t contain pretty useful enhancement of error logs, now it includes AH mark before each log entry.
Monitoring HTTP on-the-fly
On my day to day work sometimes I have to discover what request are really pushed to my web servers without digging into access logs. So I found some handy tools.
Are you Red Hat enterprise ready ?
Easy to find out just try to download one of the free evaluation copy of RHEL.