Linux

Linux

Misc

• Enhancing the vi (or vim)
• Performance monitoring
• Tuning network performance adjusting kernel parameters
• Puppet Manifest Samples
• How to use telnet without the telnet command installed
• Adding and extending disks/volumes in LVM
• Management cards (iLO/DRAC) and Hardware sensors (fan/temperature)
• IPTables examples

Bash

• Bash loops
• List files sorting by size
• Delete files older than x days
• Sorting/filtering/counting text data
• Measuring log growth rate (lines per second)
• Remove DOS line endings from Text files (CR/LF)

OpenSSL

• Generate OpenSSL certificate requests for Apache
• Convert certificate formats using OpenSSL
• Enable Public Key Authentication on SSH

Docker

• Docker commands

External links

• Disabling SELinux
• SPF Record syntax
• Crontab schedule editor