To install Google Chrome from the terminal, get the DEB file using the wget command: Installing Google chrome use the below command  from the downloaded DEB file: That’s it. Now you can find Google Chrome in the menu and start it from there.

Many times you might wonder how to find the public IP of your server using the console. Here below few options

For any apache/nginx or other logs. One of my favorite tools is: goaccess For Debian/Ubuntu installation just installed via apt. $ sudo apt-get install goaccess $ goaccess access.log Or more information can be viewed when generating an HTML file like below $ goaccess -f FILE.LOG –log-format=’%h %^[%d:%t %^] “%r” %s %b “%R” “%u”‘ –date-format=’%d/%b/%Y’ –date-spec=hr –time-format=’%H:%M:%S’ -a -o RESULT.HTML

Open your terminal. Now, connect with telnet using the following command: telnet smtp.domain.com 25 Type ehlo example.com. Some servers also accept helo in place of ehlo. ehlo Type mail from: username@example.com: mail from: username@domain.com Type rcpt to: user@hotmail.com, user2@yahoo.com (replace with your actual recipient name): rcpt to: user@hotmail.com, user@yahoo.com To write the message – type data, followed by your subject and message. To end the message, put a period on a line by itself and press enter: data Subject: My Telnet Test Email Hello, This is an email sent by using the telnet command. Your friend, Me . Type quit… Read More »How to send email using telnet

Swap file creation As root use dd to create a swap file the size of your choosing (M = Megabytes, G = Gigabytes). For example, creating a 512 MB swap file: # dd if=/dev/zero of=/swapfile bs=1M count=512 Set the right permissions # chmod 600 /swapfile After creating the correctly sized file, format it to swap: # mkswap /swapfile Activate the swap file: # swapon /swapfile Edit fstab to add an entry for the swap file: # vim /etc/fstab /swapfile swap swap defaults 0 0 Remove swap file To remove a swap file, the current swap file must be turned off.… Read More »How to create a swap file in linux using dd

Before converting the VMDK file power off the VM and remove from inventory. ssh to the esx server that you store the VM server that needs conversion Go to /vmfs/volumes/YourStore/YourVMlocation and run the below command to convert the HDD vmkfstools -i ThickHDD.vmdk ThinHDD.vmdk -d ‘thin’ -a lsilogic When is done add the VM again on the ESX server and remove the Thickhdd.vmdk and add the new Thinhdd.vmdk Power on the VM.

Login to your server as root and run the below commands aptitude update Add the Key and Ajenti Repository wget http://repo.ajenti.org/debian/key -O- | apt-key add – echo “deb http://repo.ajenti.org/ng/debian main main ubuntu” >> /etc/apt/sources.list Install Ajenti via apt-get or aptitude aptitude update aptitude install ajenti -y Restart The Ajenti service by running the below command service ajenti restart Access the website with your web browser https://IP-Address.com:8000 or https://your-domain.com:8000 Default Username and password is : Username: root Password: admin You can now login change the default password & configure you dashboard as you like etc..

Login to your server as root. sudo vim /etc/apt/sources.list and at the bottom of the file add the bellow line: deb http://download.webmin.com/download/repository sarge contrib Save the file and run the below command to install the security key: wget -q http://www.webmin.com/jcameron-key.asc -O- | sudo apt-key add – Update the sources by typing apt-get update or aptitude update apt-get install webmin or aptitude install webmin Open a Web browser go to the webmin login page: https://IPofTheServer:10000 use your default Username & Password  

Using Centos # yum install mailx Go to # vi /etc/mail.rc Add the 2 lines below set smtp=your.mail.server.com set from=your@email.sender.com Using Ubuntu # apt-get install mailx Go to # vi /etc/mail.rc Add the 2 lines below set smtp=your.mail.server.com set from=your@email.sender.com  

Open your terminal gnome-terminal Type date for show the current date and time date Tue Apr 12 Mon Mar 16:00:00 GMT 2011 To change the date type some think like below date 041218002013 In details is sudo date 04 (Month) 12 (Day) 1800 (Time in 24hour) 2013 (Year)