Linux Ask! is a Q & A web site specific for Linux related questions. Questions are collected, answered and audited by experienced Linux users.
Playing with qw() function in Perl
Answer:
The qw (quote word) function is very useful to generate a list of words.
E.g.
my @names = ('peter', 'john', 'mark');
print @names;
my @names2 = qw(peter john mark);
print @names2;
As you can see above, the use of qw() made the code more readable.
How to change the default Ubuntu's NTP server
Answer:
If you are using the ntpd daemon, edit the file /etc/ntp.conf and change
server uk.pool.ntp.org
server de.pool.ntp.org
You can fine more servers in this link: http://www.pool.ntp.org/en/
Setup time synchronisation in Ubuntu
Answer:
Install the ntp daemon is what you need.
# sudo apt-get install ntp
How to send message to a syslog
Answer:
Basically you need to use the logger command, e.g.
logger "have fun with logger"
You will find the log went to /var/log/messages
Jan 15 23:08:34 www john: have fun with logger
How to enable Server Side Includes (SSI) ?
Answer:
Pick either one of the following method and add the following lines to Apache configuration (httpd.conf).
1. Enable SSI on files with extension .shtml
AddType text/html .shtml
AddHandler server-parsed .shtml
2. Enable SSI on files if they have the user-execute bit set
XBitHack on
Reference: http://httpd.apache.org/docs/1.3/mod/mod_include.html
