Linux, programming and more
Etckeeper is a useful tool to store /etc in a version control system. It allows you to read the changes that have been made to the files in /etc, document these changes and recover a previous version of a modified file in case we made some changes that we don’t want to keep. It’ s a great system to control your server and find very quickly solutions.
Its installation is very trivial:
1 | aptitude install etckeeper |
If you can’t see hidden files in proftpd ( files with a .(dot), like .htaccess), you can force the files to be displayed in almost all clients with a server wide variable in your proftpd.conf:
Chnge to -a if exists already or add to the bottom:
1 | ListOptions -a |
Restart proftpd and reconnect.
If you need to measure network throughput and capacity, I haven’t found a simpler solution than iperf. There isn’t much to say about the operation of iperf — it’s a very simple application in server/client mode.
In short, iperf can be installed on two machines within your network. You’ll run one as a server, and one as a client.
First we need to install iprerf (debian and ubuntu way):
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If you want to enable CGI support for you domain or subdomain.
Install Apache2 mod-perl module:
1 | aptitude install libapache2-mod-perl2 |
Add this to the Apache configuration:
1 2 3 4 | <directory "="" var="" www="" domain="" cgi-scripts"=""> Allow from all Options All FollowSymLinks MultiViews </directory> |
Only scripts in directory /var/www/cgi-scripts can be executed as CGI.
SSH is an acronym which stands for Secure SHell, which provides a secure shell access to a remote machine.
This brut force tool is great to test some security stuff like iptables or sshguard.
You are able to see the proceeder of real hacking attempt.
Like most brute forcing tools, you’ll first need a pretty big passlist. You can get one from here:
1 | wget https://zeldor.biz/other/bruteforce/passlist.txt |