How to check all open ports on linux machine and block unsed ports????????

7 Answers   Tech Mahindra,

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Tell me the 5 differences between Linux and Unix?

4 Answers  

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What is Hard mount and soft Mount?

0 Answers   Cap Gemini,

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How to know what are the packages required for any service? Example: How to know what are the package required for send mail services. using any command it is passable are not?

2 Answers   OnMobile,

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What is the difference between semaphore and spinlock?

1 Answers  

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Tell me command which is use for create quota database in Linux.

7 Answers   Wipro,

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how to recollect root password

3 Answers   Google,

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i installed clustering packages.When i try to run it getting LUCI error...what is it..??

0 Answers  

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how u use the iptable firewall to restrict ssh,telnet,ftp

9 Answers  

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what is kernel panic error ? how will you fix it if you have face it after rebooting without the the help of rescue disk ?

2 Answers   Oracle,

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why accounting Software does not support on linux?

5 Answers  

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there are many IPC mechanisms available in Linux ? Which one is best to use and when ?

1 Answers   Broadcom,

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