Learning
Fix weird flux menu
2017/05/03
Some distro’s just add all the items under single menu and thus the menu itself becomes unusable because of the number of items in the submenu and this I did not like and hence ceated this simply …
scapy packet dump to packet
2017/04/10
First you need to have scapy installed. And if you don’t know about scapy, then […] Scapy is a powerful interactive packet manipulation program. It is able to forge or decode packets of a wide …
Kernel dropped packet analysis
2017/02/27
Found a simple method to check for all the packets dropped by kernel. First you need to install dropwatch with dnf install dropwatch and details of the package […] Once that is done, you will …
Get kernel function name from kernel address.
2017/02/13
If you are using pmap or using strace and want to covert kernel address to function name then you can use the following technique. First you need to install elfutils, if not installed. dnf install …
Compose a video from a text sequence
2017/01/23
I came across this useful and interesting project so sharing with all of you: seq2vid
xsos – a tool for sysadmins and support
2016/08/24
Here is a very nice article that you may find useful https://access.redhat.com/discussions/469323
git – plot the history
2016/05/23
git has a very simple solution to see all the commits in a graphical form. If you need to understand all the commits history all you need is git graphviz|dot -Tpng -o /tmp/a.png This will generate a …
DNS – simple and effective guide with history
2016/02/15
Here is link to a very nice and definitive guide to DNS. Very detailed and useful. There is a pdf version as well to download 🙂 https://webhostinggeeks.com/guides/dns/ Thanks to Andrijana Nikolic for …
virsh – show ip address of all running VMs
2016/02/01
If you are using the libvirt and associated tools, then you must be aware about virt-manager. However this being a GUI tools, it is not possible to always use this. “virsh” is a good option for this. …
Disk usage by file type
2015/11/30
Trying to find the total usage for each of the file types by extension, then here is a quick bash function for you : disk_usage_type () { find . -name '*'$1 -ls | awk ' BEGIN{ a[0]="Bytes"; a[1]="KB"; …
terminal, terminal everywhere.
2015/11/23
Tilda is a borderless terminal that can be started multiple times each with its own configuration. […] […] Its super easy to have multiple configurations. Start as many as you want. …
Executing commands on multiple hosts
2015/09/21
If you have to execute the same command in multiple hosts, then you can use mussh: […] First install mussh with the following command dnf install mussh Now to run this for multiple hosts, you …