In this tutorial we will learn how to set delay replication in MySQL Master Slave replication. After setting this configuration,slave server deliberately lag behind the Master server as per the delay time you have set. The MySQL server version 5.6 has this feature and it has some benefits which will discuss in this post. Set…
In this tutorial we will learn how to install MySQL Server 5.6 in CentOS 6.x and RHEL 6.x by using yum command. The package is “Architecture Independent” hence applicable to 32 bit(i386) and 64 bit(x86_64) operating system.Details of system where practical has been applied Operating System: CentOS 6.5Arch: x86_64 and i386 (Both) Install the MySQL…
While copying some large file I mistakenly taken out USB pen drive before the copy get completed. Later I again attached the USB pen drive in Ubuntu system but found that the USB pen drive showing read only filesystem message. I was not able to copy, create and delete any file. To solve this issue…
In this tutorial we will learn about useful tail command with examples in Linux/Unix which will help you in linux and Unix system administration. Question: What the tail command do Answer: tail command helps to get output from last part of file. Question: When we generally use the tail command. Answer: => tail command is…
Force linux user to change password upon login In this tutorial we will learn how to force linux user to change the password upon login. There are two commands through which we can force user to change password upon first login or login.You can use any of the either command. Note: Login as root to…
In this tutorial we will learn how to enable su access or switch to superuser in FreeBSD. su command is used to become another user during a login session. To become a superuser you can use the command su – or su -l root .But after installing freebsd the user other than root is not…
convert space into new line using sed command In this sed command trick we will learn how to convert space into new line.For more understanding we will take an example. In file called test we have written colour names with spaces.Now we will convert the space into new line. Syntax: sed ‘s/s/n/g’ file_name example is…
How to write description of git repo In this post we will learn about a tip that is how to write description of git repo.We have setup git server with gitolite and gitweb in Linux Server by following the previous tutorial(in CentOS and Ubuntu). If you open the gitweb you may find there is no…
In this post we will learn about how to lock and unlock user account in linux.With the help of two commands you can lock and unlock the user account in linux.We will also know, how to find the user account has lock and unlock status. To Lock the user account in Linux,use the given below…
grep command which is used for searching the keyword in file and show its output as lines containing a match to the given PATTERN or Keyword. When we simply use grep command without using any switches it simply shows the output with line having the keyword.Today,in this post we will know about a small tip…
In this post we will learn how to enable logging in Postgresql 9.2 and 9.1.It is a quick method to enable logging in Postgresql 9.2 and 9.1.We will do changes in postgresql.conf file. Path in Postgresql 9.1 : /etc/postgresql/9.1/main/postgresql.conf Path in Postgresql 9.2 : /etc/postgresql/9.2/main/postgresql.conf To enable the log for all queries in Postgresql,follow the…
Command to create and delete group in Red Hat and CentOS linux Question: How to create and delete the group in Linux (Red Hat or CentOS) by using command line Answer: To create and delete the group in linux,follow the given below steps. To create new group ,use given below command Syntax: groupadd groupname Example…
In Xfce desktop the defualt file manager is thunar.It appears similarly to Gnome’s Nautilus. To connect windows shared folder or samba shared directory from client machine which has Xfce Desktop,use the given command. Open the terminal and type below given command,it will open the GUI of thunar thunar smb://ip-address-of-machine For eg. I have a shared…
How to configure multiple mysql instance in Ubuntu In this tutorial we will learn,how to configure multiple mysql instance in Ubuntu.Here multiple mysql instance means we can run multiple mysql server in single machine.We expect you have already install mysql-server in your system(if not then run the command apt-get install mysql-server). To configure multiple mysql…
XFCE is one the lightest Desktop environment for unix like operating system.If you are looking for alternate of Unity Desktop which must be lightweight desktop environment so here XFCE is the answer. The XFCE desktop can be installed along with Unity and any other Desktop environment hence there is no requirement to remove any older…