If you use syslog-ng protocol to log your Linux kernel's messages into a /var/log/messages file and if you want to log some messages (filtered by some criteria) into a separate log file (eg. your firewall log entries), then here is…
Disable libvirt nwfilter rules
By default the libvirt daemon will create some iptables rules for its NAT virtual network (if any). Those rules may not be exactly what you want, so the question is "how to disable libvirt nwfilter rules?". One possible solution (by…
How iptables works - netfilter
If you are a keen Linux user then you know the importance of iptables in your life, right? Sometimes I feel that iptables is for Linux what is Assembly language for a computer: if it does not exists then it…
Connect to SQL Server KVM guest
So you have a KVM host that have one ore more KVM guests (such as Windows, Linux, Android, you name it) and one KVM guest is a Windows system that have a SQL Server (doesn't matter which edition). You want…