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Cannot connect via telnet or ftp to Linux 9 box

Posted on 2004-08-11
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Last Modified: 2012-05-05
I setup a Linux 9 server and and am trying to connect to it via telnet and ftp. For some reason it's not working.

When I try to connect via telnet I get the following error:

could not open connection to the host, on port 23: connect failed.

When I try to connect via ftp I get: unknown error number.

I'm a novice Linux person so please go easy on me :-) simple answers are encouraged.

Thanks,

John
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Question by:jhieb
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jlevie earned 125 total points
ID: 11779038
I'm guessing that "linux 9" is probably RedHat 9. If so the failure could be from the firewall installed by default during the OS installation. The default firewall rule set will prevent any connections to outside to the box. You can, for the purposes of testing, disable the firewall with '/sbin/service iptables stop'

Another possibility is that you haven't installed and/or enabled a telnet or FTP server. Neither will be installed unless you chose a Server or Everything configuration, and even then they won't be enabled by default. If /sbin/chkconfig --list' doesn't show a telnet or FTP service the packages (telnet-server or vsftpd) aren't installed and you'll need to install them from the distribution CD's. If the services are listed you can enable each with chkconfig.
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by:jhieb
ID: 11779154
Thanks. It doens't show FTP as a service so I'll check the installation. Telnet was installed so I started it with chkconfig. Works great. Does this mean it will automcatically start now when I reboot or do I need to change something else?
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by:jlevie
ID: 11779657
When enabled via chkconfig the service will be available for subsequent boots
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Expert Comment

by:theneeraj
ID: 11830295
disable the firewall service in your redhat .

#chkconfig iptables off
 or use
#ntsysv
and scroll down to uncheck the iptables and reboot.
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