I just installed open Suse 11.3, and I cannot SSH my school. Upon further investigation I could not even ping any machines outside my local area network. Ironically I could nmap machines outside my local area network.
Does anyone have the slightest clue what is going on here?
Thanks.
Oh and I forgot to add, I can’t even telnet remote hosts. I did try disabling my firewall using YaSt and nothing changed so the problem doesn’t lie there.
p4rt1cl3 wrote:
> Oh and I forgot to add, I can’t even telnet remote hosts.
what if you try to telnet or ssh to an IP, rather than the name?
like try:
telnet nlzero.com
and then
telnet 12.158.188.234
if you get answered on the second but not the first you need to solve
your DNS problem…do you use DCHP or what?
and, have you yet tried disabling IPv6
–
DenverD
CAVEAT: http://is.gd/bpoMD [posted via NNTP w/openSUSE 10.3]
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You’re not focusing on the likely problems yet. First, the firewall via
Yast does not block outgoing traffic (by default) so that should never
affect you unless you change things intentionally. Second, ping and nmap
are not the same type of test. The ping command sends a certain type of
ICMP message to a destination which can be blocked by any number of
devices in between (routers, firewalls, etc.) so that they are never
returned, while nmap specifically is most-commonly used for OS
identification through the use of ICMP as well as TCP/IP and UDP/IP.
Typically nmap will do a ping test first but it’s not required. Knowing
what you mean by “could not ping” and “could nmap” by having you post the
output of each test could be helpful.
Also what really happens when you try to ‘SSH … school’ (again, via
output)? Most places in the world are not going to arbitrarily allow you
to access them remotely via any port; if you are the school’s network
administrator and have made changes to the network for this to work,
that’s one thing, but if not then there’s no reason in the world you
should assume this will work.
Good luck.
On 08/29/2010 04:06 AM, p4rt1cl3 wrote:
>
> Oh and I forgot to add, I can’t even telnet remote hosts. I did try
> disabling my firewall using YaSt and nothing changed so the problem
> doesn’t lie there.
>
>
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Wow, you guys are going to think I’m the world’s biggest clown. My dad changed the firewall settings on the verizon router to ‘medium’. I switched it back to low and can now SSH,ping, and telnet at my leisure. Anyway, aside from a couple of things I have yet to tweak, I am absolutely loving opensuse.
Thanks again, guys.