Archive for April, 2009:
Nice Cacti Install How To
0 Comments | This entry was posted on Apr 21 2009
RedHat / CentOS Install and Configure Cacti Network Graphing Tool
Reset file permissions of RPM packages
0 Comments | This entry was posted on Apr 16 2009
A disastrous mistake anyone can make on their Linux server is to chown or chmod their entire filesystem.
You can reset the permissions of packages installed with rpm.
To reset file permissions:
root@empulse:$ rpm --setperms {packagename}
To reset ownership permissions:
root@empulse:$ rpm --setugids {packagename}
Security Articles
0 Comments | This entry was posted on Apr 05 2009
Hacking-Gurus: Network and Server Security Blog really has some useful information documented. Check out these articles.
Basic Linux Server Security
Linux Security Tools
SQL CheatSheet
SQL Injection article
0 Comments | This entry was posted on Apr 05 2009
This is an article I found on Twitter from Hacking-Gurus on SQL injection. Check it out.
MySQL: Secure Web Apps – SQL Injection techniques
One-Liners
0 Comments | This entry was posted on Apr 04 2009
Search for multiple processes in one command. Example in using multiple variables.
root@empulse:$ ps auxf | grep -P '(wincompd:|proftpd:)'
Lower the reserved disk space to 0%. By default Linux will reserve 5% of each file system as reserve free disk space.
root@empulse:$ tune2fs -m 0 /dev/hda5 remove reserved space
Compare two files on two remote file systems. I saw this on Command-line-fu.
root@empulse:$ diff <(ssh alice cat /etc/apt/sources.list) <(ssh bob cat /etc/apt/sources.list)