Thursday, August 12, 2010

Linux interview questions

1)How to compile Apache?

2)Users come to you and they will be saying mail server is very slow, what are the necessary steps you will take to resolve this issue?

3)Which are the configuration files associate with DNS server and client?

4)Where you will provide ISP details for your network?

5)How you will configure Squid proxy?

6)How you will block pron sites using Squid proxy?

7)Give me details how to configure mail support for NAGIOS?

8)Can you use NAGIOS to send SMS? how to do that?

9)What is web-min?
A) Webmin is a web-based system configuration tool for OpenSolaris, Linux and other Unix-like systems.

10)How you will do kernel compilation? Explain each step?

11)What is the difference between SGID, SUID and sticky bit?

12)How to restrict users to set password with complexity ?

13)How do you monitor system performance?

14)Which are the configuration files of FTP server?

15)What are the different types of FTP servers?

16)What is the difference between active FTP and passive FTP?

17)How you will configure FTP in DMZ?

18)What is the use of htaccess file?

19)how do you configure website authentication for user logins?

20)Give me the steps to configure sendmail.

21)How to block particular network not to access my sendmail server?

22)How to send duplex/half duplex etc to the network card?

23)Can a web server have multiple ip add? if yes why? if no why?

24)How to configure multiple ip address for a web server?

25)What is the difference between VMWare and XEN?

26)Explain me the difference between ext2 and ext3

27)How do you configure route in Linux server?

28)How do you make routes permanent in Linux server?

29)Why you want to change your job?

30)What is an inode?

31)what is the difference between soft link and hard link?

32)How to get info about the files which are not accessed from last 30days?

what is the difference between soft link and hard link?
what are the advantages with NFS?
What is difference between LILO and GRUB?
How you will troubleshoot if boot partation is missing?
What is crontab?
How you will install MYsql in different ways?
What is the difference beween Mysql5.0 and 4.0 versions?
the host is unreachable how you will resolve this issue?
there is no firewall the host is in same network and dns server is working fine?
what is mii tool will do?
what is the advantage of lsof command?
How you can compile kernel?
What is CVS server?
what are your day today activity?
how you will create users on NIS server when the server is in production envernoment?
Actually there is one partaion with 20gb mounted on /data. Users are unable to create files and data due to disk full so when you logged in to server and checked the space by using du -k its showing.