Turn off PHP error messages?
Answer:
In a production server, you should always turn off PHP error messages to be displayed for public, to do so, edit the php.ini
E.g.
vi /etc/php.ini
And turn off display_errors
display_errors = Off
Jan 012010
Linux Ask!
Jan 012010
How to install bulk packages using yum with groupinstall?
Answer:
Sometimes, if you forgot to select "Development Tools" during Fedora/CentOS installations, you can add them later by using one command
yum groupinstall "Development Tools"
Which save you a lot of times from installing the needed packages one by one.
To see what options are available for groupinstall, try
yum grouplist
Jan 012010
How to zip a file in Ubuntu?
Answer:
Firstly, install the "zip" package if not installed
sudo apt-get install zip
Then run the command
zip test.zip test.txt
Jan 012010
How to mount a NFS share?
Answer:
Assume you have a NFS share /data/shares/music, at server: 192.168.1.5
You can mount the NFS share from another system at /mnt/music (create this directory first), with the command below
sudo mount 192.168.1.5:/data/shares/music /mnt/music
This is just an one-time mount.
If you want to mount permanently, you can edit the fstab
vi /etc/fstab
and input
192.168.1.5:/data/shares/music /mnt/music nfs rsize=8192,wsize=8192,timeo=14,intr
Then run the command to see the effect immediately.
sudo mount /mnt/music
Also try to reboot your system to see if the share can be mounted automatically or not.
Jan 012010
MySQL binary log files take all of my disk space
Answer:
If you have enabled binary log in your MySQL server, most likely you are using the replication feature. You don't need to keep the binary log forever, so in the my.cnf, add the line
expire_logs_days = 10
So your MySQL server (master) would keep at most binary log for 10 days. (Notes: you might need to adjust this value, make sure your MySQL slave is able to catch up the updates within 10 days)
However, if you are not using replication, you can consider disable the binary log, e.g. edit the my.cnf, comment out the "log-bin"
# log-bin
