Author Archive for: tecdistro
Entries by howto
How to create repository in Redhat 7 Linux
Introduction Repository is database of application installation and up-gradation of packages which are available on different Linux distributions. The packages of distros are available on official websites or you can extract them from official CD/DVD. We can easily install, upgrade or delete packages from repository. Step 1: Mount ISO from DVD or Folder In order […]
How to Configure Postfix, Dovecot, Virtual Domains, Virtual Users in CentOS
Step 1: Install Postfix Install postfix using yum command: # yum install postfix Step 2: Run Postfix on Multi-Levels Make sure run the postfix on multilevels: # chkconfig postfix on Step 3: Modify /etc/postfix/main.cf File Make a copy of both these files main.cf & master.cf: # cd /etc/postfix # cp main.cf main.cf.bk # cp master.cf […]
How to Change MySQL user passsword in linux
Step 1: Login MySQL Server Use the mysql credentials to login in mysql server: # mysql -u root -p Step 2: Select the database Select the database by using use command: mysql> use mysql; Step 3: Change MySQL user passsword Change password for user test, enter: mysql> update user set password=PASSWORD(“NEWPASSWORD”) where User=’test’; Step 4: […]
How to Install and Configure dnsmasq in Linux
Introduction Dnsmasq is a lightweight DNS forwarder and resource constrained routers and firewalls. It is widely used for tethering on smartphones and portable hotspots, and to support virtual networking in virtualisation frameworks. Dnsmasq is included in most Linux distributions like FreeBSD, OpenBSD and NetBSD. Step 1: Install dnsmasq First install dnsmasq package using yum command. […]
How to create FTP user and assign quota in Solaris
Introduction File Transfer Protocol(FTP) is a network protocol used for the transfer of files between a client and server on network. Step 1: Create User First create FTP user by using following method. # useradd test # passwd test Step 2: Create FTP user Directory Make a directory in ftpdata folder # cd /ftpdata/ # ls -l […]
How to install snmp in Redhat 7/CentOS 7
Introduction SNMP stands for Simple Network Management Protocol. It is a protocol used to monitor servers. It is used for collecting information from, and configuring, network devices, such as servers, printers, hubs, switches, and routers on an Internet Protocol (IP) network.\ Step 1: Install SNMP # yum install -y net-snmp net-snmp-utils # cd /etc/snmp # […]
How to set session timeout
Step 1: Introduction The utmpx and wtmpx files are extended database files that have superseded the obsolete utmp and wtmp database files. The utmpx database contains user access and accounting information for commands such as who(1), write(1), and login(1). The wtmpx database contains the history of user access and accounting information for the utmpx database. […]
