Linux

Linux find and rename filename command

Posted on July 19, 2021July 19, 2021 by Viet Luu

Stop Start Fetch config AWS CloudWatch Agent linux command

Posted on February 2, 2021February 2, 2021 by Viet Luu

STOP: FETCH/START STATUS

Linux command find files own by specific owner

Posted on April 6, 2018April 6, 2018 by Viet Luu

http://www.cyberciti.biz/faq/how-do-i-find-all-the-files-owned-by-a-particular-user-or-group/ # find /home -group ftpusers # find /data/project -group ftpusers -name “*.c” # find /var -user vivek

How to install ‘Japanese’ language in Redhat linux?

Posted on March 26, 2018 by Viet Luu

To check all language available run follow command: # yum grouplist To install ‘Japanese’ language pack run follow command: # yum groupinstall ‘Japanese Support’

Ping command examples

Posted on March 20, 2018 by Viet Luu

#(sends a ping every 200ms) ping -i0.2 <HOSTNAME> #(sends a ping every 50ms, 1000 times) sudo ping -i0.05 <HOSTNAME> -c 1000 #(flood ping, adds a dot for every sent packet, and removes one for every received packet) – careful with flood ping without interval, it will send packets as fast as possible, which within the…

Sending email using telnet command

Posted on February 21, 2018 by Viet Luu

Open your command prompt. Now, connect with telnet using the following command: telnet example.com 25 Type ehlo example.com. Some servers also accept helo in place of ehlo. ehlo example.com Type mail from: username@example.com: mail from: username@example.com Type rcpt to: friend@hotmail.com, friend2@yahoo.com (replace with your actual recipient name): rcpt to: user1@gmail.com, user2@gmail.com To write the message – type data, followed…

How to set mtu size for a network interface in redhat linux ?

Posted on February 20, 2018February 20, 2018 by Viet Luu

1. To dynamically change the MTU in real time while the server is in use, ip link set dev eth0 mtu 1350 2. To make the change permanent, edit the interface configuration file (for instance eth0) vi /etc/sysconfig/network-scripts/ifcfg-eth0 AND ADD THE FOLLOWING LINE MTU=1350 3. To restart the Network Interface service network restart eth0