In this post you’ll see how to change user name or rename a user name in linux operating system, normally, it is necessary to change users name who has already been created. of course, linux… read more »
For security purposes, we should disable remote SSH login as root user, you know root user is super administrator in linux operating system, so we shoud not allow remote ssh login with root user, if… read more »
Normally If one process occupied too much cpu useage or memory usage, then you will consider that if that process should be killed. or For unknow process or virus process, we must kill those process…. read more »
For a new linux Admin, How to check a user belong to which groups in linux server, or a user is in which group membership, this post will show you that using groups command to… read more »
How to share a directory among users in linux, it means that if there is a good way to share a directory between local users, this post will show you on how to use chmod… read more »
For Linux newbie, Maybe you need to know how to get a file’s directory name from file’s full path(absolute path), in this post, you’ll see how to get directory name from file’s absolute path when… read more »
For a Linux new learning, if you know how to create a directory in linux operating system, then you should also know that how to delete or remove directory. this post will guide linux newbie… read more »
If you want to disable a user to login the system, then you can delete the user password or sometimes you need to set passwordless login to some special user account so that you do… read more »
What is Zip command? zip is a compression and file packaging utility for Unix, VMS, MSDOS, OS/2.etc. and so if you want to list , or extract files form a zip file, unzip comand will… read more »
Searching for files in a target directory is a frequent things in your daily work for a Linux admin or linux newbie. Often, you must have in mind the linux command find firstly, then how… read more »
You must often encounter the problem of insufficient disk space in linux system as a linux admin, At this time, what you do for this problem? I think you need to check of which the… read more »
Sometimes, Maybe you have some specific request as a linux admin, it is to find the smallest files or directory in a directory or in the current directory, or you need to know how to… read more »
If the servers you will be used are located in a same LAN env…then you can use rsh, rlogin,rcp or others commands to connect each servers, althought it transfers the password plainly, but security risks… read more »
For linux admin or DBA, it someone forgot normal user pasword, he must be ask for request to you to reset or change the orginal password. how do you change the user’s password? in this… read more »
In Unix or Linux system, you need to use “passwd” command to change or set user’s password, when you update or set password, it will update shadow file. In this post I will show you… read more »
