iptables –set-mark – Route diferent ports through different interfaces
Short story,
3 interfaces, eth0 (LAN), eth1(ADSL), eth2(4G).
eth0 -> eth1: Works
(ports 80, 443, 4070) eth0 -> eth2: Doesn’t happen
Unix & Linux
Why shouldn’t someone use passwords in the command line?
Why do people fear writing passwords in the command line?
What is the difference between “tail -f” and “tail -F”?
I never used tail -F command instead always used tail -f however someone told me that -F is better without much explanation.
How does umask affect ACLs?
Can someone explain to me how umask affects the default mask of newly created files if ACLs are activated? Is there some documentation about this?
(UEFI) Chainloading GRUB from GRUB
Terminology: ESP = my FAT32 EFI partition.
What are ConsoleKit and PolicyKit? How do they work?
I have seen that recent GNU/Linux are using ConsoleKit and PolicyKit. What are they for? How do they work?
How to set a dynamic Message of the Day (motd) in Debian Jessie 8.2 for ssh?
I would like to have a dynamic motd, but I can’t figure out how to do it.
Silently start task in background
I know that you can use this to start a process in the background, without getting the notification when the process is put in the background and when it is done like so:
A new version of configuration file /etc/default/grub is available, but the version installed currently has been locally modified
I am using 3.2.0-4-amd64 #1 SMP Debian 3.2.46-1 x86_64 GNU/Linux Debian GNU/Linux 7.1 (wheezy) Release: 7.1.
View only the new entries in a growing log file
-n, –lines=K
output the last K lines, instead of the last 10; or use -n +K to output lines starting with the Kth