Browsing Tag
UNIX
9 posts
Time based network access control on OpenBSD
Time based ACL (access control lists) features do not exist in BSD’s packet filter (PF). Having your network…
Block countries on OpenBSD using pf
Same as in the previous article, full countries can be easily blocked on OpenBSD firewall using the pf…
Secure MySQL Backups with GnuPG
One way to secure your MySQL backups, is to encrypt the backup file using PGP/GnuPG. Of course you…
Finder and Samba share support
I’ve answered a question on StackOverflow (actually on SuperUser) regarding Finder and Samba shares on Ubuntu Linux. It’s…
Bash and the Screen
Beauty and the Beast When working in a UNIX/Linux/MacOSX environment, the command is often used to execute some…
IPtables Firewall Script
Some years ago, I had been searching the Internet quite a lot for a descent and simple firewall…
A services watchdog written in Perl
This Perl script was initially written about 3 or 4 years ago, but still does its daily job:…
Blacklist emails with DCC through a Perl script
DCC is a wonderful tool, but it needs to be fed constantly. After going through the process of…
Monitor resources on a UNIX machine (with Perl)
To get an overview of what is running on a certain UNIX/Linux host, most users will usually run…