itdoctor (Page 41)

if you have ConfigServer Security & Firewall enabled in WHM , only a certain ports are allowed to come in/out. By default mysql will be blocked, to unblock it you need to add 3306 as an allowed list Go to ConfigServer Security & Firewall – > Firewall Configuration -> Add 3306 into TCP_IN list ( separated by comma) like this: 20,21,22,25,53,80,110,143,443,465,587,993,995,2077,2078,2082,2083,2086,2087,2095,2096,3306Read More →

If this is an existing users Syntax: usermod -a -G groupname username For example: usermod -a -G sudo myadminaccount -> this will make myadminaccount belong to sudo group , this mean it can run sudo su – to becom a root. For new user ( you haven’t created it yet) Syntax: useradd -G groupname username This will add a new username to a group name groupnameRead More →

If you are new to linux and you asked what linux version you are running or is your linux is a 32bit or 64 bits. You can easily answer this by running “uname -a” on your linux box to get the required versionRead More →

If you cant not login to gmail via your outlook , and you got a message asking you to visit https://support.google.com/mail/bin/answer.py?hl=en&answer=78754 This means your account maybe blocked, you can follow these steps to fix it login to your gmail via webmail if you see any captcha ,enter it and login to webmail if this step does t fix your problem , go to your Account Settings and change to a new password Hope it helpRead More →

You need to use the –progress option which show progress during file transfer. The syntax is as follows: rsync –progress -avz -e ssh /home/mydir [email protected]:/home/myremotedirRead More →

There are various method to setup multiple of mysql instances on a single linux ubuntu server. In this scope of this page, i will show you the most simple one. You can follow the steps below to get it done: 1. Create separate data and log directories We need to create new directories for our datadir and log folder (if used). Also we need to assign proper permissions on those folders: mkdir /var/lib/mysql2 chown -R mysql.mysql /var/lib/mysql2/ mkdir /var/log/mysql2 chown -R mysql.mysql /var/log/mysql2 2. Create a new mysql configuration file Next we need a separate configuration file. We can start by copying the existing one andRead More →

If you need to create a file with a specific filesize on linux for testing , you can run this command $ truncate -s filesize filename for ex: truncate -s 100MB output.file this will create file 100MB output.fileRead More →

this is because you rodn’t have php-xml on your server, you can install it by running : yum install php-xml or apt-get install php-xml retart your apacheRead More →