Is it safe to take the drive image of the current working drive?
I have to backup my hard disk. I want to use dd and put the image on an external hdd.
Unix & Linux
My basic assumption about system “iowait” does not hold
My basic assumption is that when a process’ only limiting factors are disk and CPU, then total system “iowait” + CPU usage should equal at least 100% of one logical CPU. (In other cases this will not hold. E.g. when downloading a file using wget, the network is often the limiting factor).
How do I encrypt git on my server?
Heres the closest I’ve gotten: I installed gitolite in the /Private folder using ecryptfs-utils (sudo apt-get install ecryptfs-utils adduser git ecryptfs-setup-private then the rest was configuring gitolite using a root install).
Cloning a bootable USB stick to a different-sized stick
HARDWARE: 2 8GB USB flash drives
DISTRO: Mint 9 Xfce persistent Live Cd
Is there a difference of stability between Linux distros?
I’ve using Debian since 2010 for some home purposes and it has been stable. Is Debian still a good option if I need a server for heavy network, cpu, disk and memory usage?
Invert boolean variable
I want to try simple script
How to prevent random console output from breaking the terminal?
There are many questions on SE that show how to recover from terminal broken by cat /dev/urandom. For those that are unfamiliar with this issue – here what it is about:
Convert linux sysuptime to well format date
I want to display /proc/uptime in well format as:
disable apt-listchanges (and other interactive stuff) during upgrades (reliably)
I have to admit, I really really hate apt-listchanges. If I’m going to do a huge dist-upgrade, I want to just leave the computer there for a few hours. The asker of this serverfault question had a similar goal in mind, bu after implementing all of the suggestions in that post, I was still hit by apt-listchanges.
Iptables: matching outgoing traffic with conntrack and owner. Works with strange drops
In my iptables script I have been experimenting with writing as finely grained rules as possible. I limit which users are allowed to use which services, partly for security and partly as a learning exercise.