Linux Ask! is a Q & A web site specific for Linux related questions. Questions are collected, answered and audited by experienced Linux users.
Network sniffing with tcpflow
Answer:
Wireshark is the De facto standard in network sniffing, but most of the time you might just want to analyse the content passing through your web browser or web server, then it is easy with tcpflow
For example, to show your communication with google.com to console, you can use
sudo tcpflow -c -i en0 src or dst host www.google.com
How to remove a locale in Ubuntu server
Answer:
In our previous post, we have discussed how to add a new locale. But once added, how to remove it?
You can do so using the --purge option, e.g.
# sudo locale-gen --purge en* The above command remove all locales except the en* locale
How to add a locale to Ubuntu server
Answer:
Ubuntu server only come with very few installed locales by default, e.g.
# locale -a
C
en_AG
en_AU.utf8
en_BW.utf8
en_CA.utf8
en_DK.utf8
en_GB.utf8
en_HK.utf8
en_IE.utf8
en_IN
en_NG
en_NZ.utf8
en_PH.utf8
en_SG.utf8
en_US.utf8
en_ZA.utf8
en_ZW.utf8
POSIX
To add more, e.g. zh_TW, you can type
# sudo locale-gen zh_TW
Then you can verify using the command locale -a again.
How to upgrade a single package in Ubuntu
Answer:
To upgrade a single package, you just need to install the package again, e.g.
# sudo apt-get install nginx
How to push to origin but a different branch using Git
Answer:
Assume you normally push your local changes to the remote's master branch, but what if you want to push the changes into another branch (e.g. testing)?
You can easily do this by using the command:
# git push origin master:testing
