Linux Interview Questions

20 Linux Commands Interview Questions & Answers

Posted by & filed under .

Q:1 How to check current run level of a linux server ? Ans: ‘who -r’ & ‘runlevel’ commands are used to check the current runlevel of a linux box. Q:2 How to check the default gatway in linux ? Ans: Using the commands “route -n” and “netstat -nr” , we can check default gateway. Apart […]

17 Squid Proxy Server Interview Questions & Answers

Posted by & filed under .

Q:1 What is Proxy Server and why it is used ? Ans: A proxy server provides Internet access to different users at same time i.e by sharing a single Internet connection. A good proxy server also provides for caching of the requests, which helps to access data from local resources rather fetching the data from […]

Interview-Questions

20 Linux Virtualization Interview Questions & Answers

Posted by & filed under .

Q:1 What is Virtualization ? Ans: Virtualization is a technique for creating virtual resources (rather than the actual) such as server, storage device, network  and Operating system. Virtualization is dis-associating the tight bond between software and hardware. Q:2 What are the different types of  Virtualization ? Ans: Virtualization can be used in different ways  and  […]

postfix

20 Postfix Interview Questions & Answers

Posted by & filed under .

Q:1 What is postfix and default port used for postfix ? Ans: Postfix is a open source MTA (Mail Transfer agent) which is used to route & deliver emails. Postfix is the alternate of widely used Sendmail MTA. Default port for postfix is 25.   Q:2 What is the difference between Postfix & Sendmail ? […]

Interview-Questions

BIND – DNS Server Interview Questions & Answers

Posted by & filed under .

Q:1 What does BIND Stands for ? Ans:  BIND stands for Berkeley Internet Name Domain. Q:2  What is DNS Server and its fundamentals ? Ans: The Domain Name System (DNS) is a hierarchical, distributed database. It stores information for mapping Internet host names to IP addresses and vice versa, mail routing information, and other data […]

Linux Interview Questions

Linux NFS(Network File system) Interview Questions & answers

Posted by & filed under .

Q:1 Why to use NFS ? Ans: A Network File System (NFS) allows remote machine to mount file systems over a network and interact with those file systems as though they are mounted locally. This enables system administrators to consolidate resources onto centralized servers over the network. Q:2 What is the default port of NFS server […]

Interview-Questions

Linux FTP (vsftpd) Interview Questions & Answers

Posted by & filed under .

In Linux Like operating system vsftpd(Very Secure FTP Daemon) is ftp server , which provides the features of downloading and uploading files to the ftp space. In this article we will discuss most common ftp server interview questions along with the Answers. Q:1 What does VSFTPD Stands for ? Ans: VSFTPD stands for Very Secure […]

Top 15 SSH Server interview Questions & Answers

Posted by & filed under .

Q:1 What is the default port & configuration file of SSH Server ? Ans: 22 is default port  for ssh and  ‘/etc/ssh/sshd_config’ is the configuration file. Q:2 How to change the default ssh port in linux ? Ans: To change the port , first edit the file ‘ /etc/ssh/sshd_config ‘ , change the  vaule of […]

Linux Interview Questions

Top 30 Linux System Admin Interview Questions & Answers

Posted by & filed under .

 In this article we will discuss top 30 linux system admin interview questions with the answers for experience professionals. Below mentioned questions may help the readers to clear Linux interviews. If you like these questions , please don’t hesitate to share on Facebook,google+ and Twitter.  Q:1 Why is LVM is required ? Ans: LVM stands […]