networking

[Mahlathini]

I can ping my host's IP and gateway from within,but I cannot ping nor connect from outside.I only can connect telnet or rlogin through a unix server.

I checked my /etc/rc.config.d/netconf file and everything looks okay.

Pls assist.

[Steven E. Protter]

Shalom,

Well you certainly don't provide us a lot of information here.

>>I only can connect telnet or rlogin through a unix server.

I don't understand this at all. If you can not ping the outside, I hope I can assume by your post that you have limited network connectivity because you say you can ping your gateway, which is external.

1) Go look physically. Make sure lights are on at the network connections, on the switches and that no cables are unplugged.
2) Log on the system console and run dmesg
This can often provide you clues as to what is wrong.
3) Check your network for duplicate ip address to the one defined in netconf
4) Check your /etc/rc.config.d directory for a backup of netconf. If you have netconf.backup for example it gets red at network start time and you pretty end up with no networking at all.
5) Have the network switch configuration checked for filtering.
6) Check that your system is not running any HP-UX firewall like netfilter. Misconfiguration could lead to the problem.
7) See if inetd.conf is correct and running. Restart the inetd daemon inetd -c

Provide results from the above for further assistance.

SEP

[Patrick Wallek]

>>I can ping my host's IP and gateway from within,

I assume you mean from within your corporate network?

>>but I cannot ping nor connect from outside.

Outside what? Outside your corporate network? From the Internet? I don't understand.

If you do mean you can't connect from the Internet, then I would guess that you have a firewall in place that is preventing this. The IP address for this server may be for internal use only. You may not be able to get to that IP address from the Internet.

A whole lot more information is needed to provide a good diagnosis of the problem.

Please provide specific details of your configuration, exactly where you are trying to connect from and what is happening (error messages are especially helpful).

[Mahlathini]

Inside:

When I am logged to one of my other unix servers, I can rlogin/telnet/ping this server.

Outside:

When I am not logged on to any of my unix servers I cannot telnet/ping from my laptop's commnd line.

[Patrick Wallek]

>>When I am logged to one of my other unix
>>servers, I can rlogin/telnet/ping this server.

Are all of the servers on the same subnet?

>>When I am not logged on to any of my unix
>>servers I cannot telnet/ping from my
>>laptop's commnd line.

What subnet is the laptop in? Is it the same as the Unix server? Can you ping the laptop's default gateway? Can the laptop ping any other servers or log in to any other servers?