A chronological documentation test project, nothing serious, really!
The following steps can be used to ssh from one system to another without specifying a password. Notes: The system from which the ssh session is started via the ssh command is the client. The system that the ssh session connects to is the server. These steps seem to work on systems running OpenSSH. The […]
This is a modified version of my Resize of images in a folder with imagemagick post back in February. Only difference this time is that i strips out EXIF tags and the script has been cleaned up a bit. Click on the image to see the result in full size. #!/bin/bash # Description: # Script […]
This is a simple iptables rule to allow ssh access to a specific MAC-address iptables -A INPUT -p tcp –destination-port 22 -m mac –mac-source XX:XX:XX:XX:XX:XX -j ACCEPT This is a nice rule to allow only your laptop ssh access on your servers no matter what IP-address you may have while you are on the road. […]
This is one way to determine the ports needed to open in your iptables rules to get NFS to work properly. First we need to determine the ports NFS uses rpcinfo -p | awk -F ” ” ‘{print $3 “, ” $4 “, ” $5}’ | sort | uniq Notice! Since portmap assigns ports on […]
I’ve installed rkhunter, a rootkit checking script, on a Ubuntu 7.10 (Gutsy Gibbons) distro and today it mailed a message saying that 3 files had their properties changed. The files were /usr/bin/chattr, /usr/bin/lsattr and /usr/bin/perlBefore doing anything I tried to update rkhunter to see if there had been any updates to fix this message rkhunter –update […]