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Unix Questions - Part 4

Posted: Fri Jul 31, 2009 12:08 am
by wacky
16/ What port numbers do the following use?
ssh, ldap, ftp, smtp, X, named

17/ Using either tar or cpio detail the syntax to copy a directory structure from the /testA filesystem to the /testB filesystem.

18/ Why should you never have '.' in root's path?

19/ You can ping servers on the subnet your workstation is on, but not other subnets. What is wrong?

20/ If you can ping a server, but can't telnet or ssh to it, what could be the problem?


Please do not post your answers here. I'll post them in a couple of days' time.