A chronological documentation test project, nothing serious, really!
The following shell script finds duplicate (2 or more identical) files and outputs a new shell script containing commented-out rm statements for deleting them. You then have to edit the file to select which files to keep – the script can’t safely do it automatically! OUTF=rem-duplicates.sh; echo “#! /bin/sh” > $OUTF; find “$@” -type f […]
If you do not like unnecessary windows open, or want to get the maximum out of your terminal session, screen will soon be in your .bash_history numerous times. I found GNU Screen’s barrier to entry quite high, and I wanted to lower it for my readers. GNU Screen enables you to run many shell processes […]
First the script tries to umount the drive normally. If that fails, it tries to restart famd which is the most common problem. If that fails it tries to restart xinetd. If that fails it uses the command fuser -ki which asks you if you want to kill each process that’s using that folder. Be […]
It is ideal to slow down the SSH dictionary attack when the infested host started to brute force the SSH authentication. There are many scripts/user-land daemons that perform monitoring and blocking. I prefer to use something that has less demand in memory/CPU usage. IPTables module provides a kernel level solution with little overhead.
Dette scriptet er ikke testet samt DoS bør hindres på kernel nivå! A simple rule-based DoS attack-prevention shell script. However, the proposed shell script is not a perfect tool for preventing DoS attacks, but a powerful tool for alleviating DoS attacks overheads of the Linux servers significantly.