Notes, fixes and guides.
Sixteen years of working notes on Linux and networking, Django and Laravel deployment, SwiftUI and AWS. Written down mostly so I can find them again.
HowTo recompile Debian packages
This article will show how you can rebuild any debian package. You might need to rebuild a package for various reasons: add/remove some compilation options, make some changes to…
kill command on Debian
In technical terms, kill simply sends a signal. By default it sends a signal which requests termination (TERM, or signal 15); but you can also specify a signal,…
Remove debian udev persistent-net-rules
Debian has a customization to udev that will keep network interface names persistent after hardware changes and reboots. Normally this is what you want and you will not care about this, but there…
Sendmail Multiple Queues
Sendmail will use by default a single mail queue. This is what most users will need, and if you don’t have any special requirement you will not care about this.…
Ext3 – Reserved blocks percentage
According to tune2fs manual, reserved blocks are designed to keep your system from failing when you run out of space. Its reserves space for privileged processes such as daemons (like syslogd, for…
Determine the Directory Size Recursively
Sometimes you want to ascertain the space hogs on your system. You might have noticed that a certain top level directory is larger than usual, but you are…
Inline Shell Script with a For Loop
Often I'm asked how to traverse a list of items in a file. You can easily go through a list of items using a for loop. Here's an…
HOWTO mount ISO and DD Image Files
Occasionally, I'll download an image file and want to see what is on it, or make a few changes to it before burning it to CD.The image file…
HOWTO Remove a File or Directory Recursively
# rm filename (removes a single file)# rm filename? (matches single character. e.g. filename1, filename2,filename3)# rm filename[1-5] (matches filename1 thru filename5)# rm filename* (removes…
Common UNIX Find Commands
One of the most useful utilities in the UNIX systems resources directory is the find command. System administrators use this powerful utility frequently. Here are a few common…
Create Live USB of any Linux OS
I found a very easy tool to make live usb linux OS..here it is..1. Download Ubootnetin.Download 32-bit (i386) Ubuntu/Debian .deb PackageDownload 64-bit (amd64) Ubuntu/Debian .deb PackageDownload…
Ubuntu 30-Mount Check Annoyance
If you’ve used Ubuntu Linux for longer than a month, you’ve no doubt realized that every 30 times you boot up you are forced to run a filesystem…