SSH connection blocked by symantech gateway

ibaydan · 10-13-2010, 09:49 AM

In my work I am trying to connect my home server behind symantech gateway but I cannot but when I try to connect with telnet to ssh port I can make connection.How can I connect my server via ssh client.
Thanks

joker20 · 10-13-2010, 11:20 AM

you'll need to forward port 22 to your LAN ip and from an external connection use your public ip to connect
so say your home public ip is 55.55.55.55 and your local lan ip is 192.168.1.xxx just forward port 22 to your LAN and when you use putty for instance use the 55.x.x.x ip

edit: do this on your gateway/firewall

ibaydan · 10-13-2010, 11:57 AM

Thanks but the gateway is not in my control I need to pass it without editing any option.I can edit my server or client

joker20 · 10-13-2010, 12:25 PM

you just said your server was at home so how would you not have control?
you need to make those changes on your hardware at home, not work

ibaydan · 10-13-2010, 12:42 PM

Sory for misunderstanding the gateway is at my work and I have no right to change gateway settings.I can telnet my server but cannot ssh.

joker20 · 10-13-2010, 12:58 PM

well as i stated in my previous post...you need to make these changes at home, not sure what kind of router you have but im going to presume its a SOHO (small office home office) when you look thru your settings im sure you'll see something in relation to a firewall or port forwarding...look for an entry in regards to telnet or port 23 and make a duplicate entry for SSH or port 22

ibaydan · 10-14-2010, 01:08 AM

I think I couldn't explain it.Here is my network schema
My work computer -> proxy,firewall,gateway-> internet cloud -> my home server(ssh,telnet services)

when i try to connect the gateway blocks ssh connection but permits telnet connection to my home server.For now I am gonna use telnet bu it is not secure there is no tunneling for other applications vs.vs. I am searching for solution.By the way I cannot configure gateway.So I need a trick .
Thanks

joker20 · 10-14-2010, 06:27 AM

you're still not listening to me when i say changes need to be made at your home, im gonna guess with confidence that you have some sort of router, unless your computer is connected directly to your modem (which is down right stupid) or maybe check your computers software firewall
it is a possibility your work network could be blcoking outbound SSH sessions which is unlikely but possible
either way you're pretty much on your own at this point...ive pointed out what needs to be done

ibaydan · 10-14-2010, 11:18 PM

Thanks for your reply .I tried yesterday to unblock ssh protocol in gateway and I am successfully connected but when I deleted ssh permission in gateway ssh is blocked by gateway.By the way I have just tried it I cannot set the unblock ssh for a long time.I am not administrator of gateway.

joker20 · 10-15-2010, 03:16 PM

not even if the rule is solely for your machine?

ndarkduck · 10-15-2010, 04:45 PM

Why don't you put the ssh also listening on the port 23? So you can connect "via telnet"?

ibaydan · 10-17-2010, 02:42 PM

I do that my home router listen port 21 to make ssh but the gateway analyze the packets or sessions and determine the type of the connection.