Ubuntu server prevent serving .git directory

Add the followings into /etc/apache2/apache2.conf file

<Directorymatch "^/.*/\.git/"> 

Order deny,allow 

Deny from all

</Directorymatch>

Postgresql 9.* remote access

First find pg_hba.conf and postgresql.conf files in your terminal with

locate pg_hba.conf

and then add the following line to pg_hba.conf

 host all all 0.0.0.0/0 md5.

After this, open  postgresql.conf file and change the line

#listen_addresses='localhost'

with

listen_addresses='*'.

Finally, just restart postgresql service with

sudo service postgresql restart.

Enjoy!

How to fix /usr/bin/env: node: No such file or directory error

If you get this error while installing NodeJS, your Linux distro (like Ubuntu) probably uses "nodejs" instead of "node". For solution of the problem, make a symlink and it should work:

ln -s /usr/bin/nodejs /usr/bin/node

Enjoy!