SSH Tunneling
By Benj Arriola - Posted on Thu Aug 31, 2006One thing I really feel bad about with this Isulong SEOph website of mine right now is I cannot actually visit my site! I get connection timeout errors. And this is only when I am at home. But when I am at work, I can seem to visit my site. And people I know in the Philippines can also visit this website. After doing a traceroute, which I do not 100% understand, this is what came out:
| Hop | IP | Hostname | Ctry |
|---|---|---|---|
| 1 | 66.36.240.2 AS14361HOPONE-DCA | c-vl102-d1.acc.dca2.hopone.net. | US |
| 2 | 66.36.224.248 AS0IANA-RSVD-0 | gec3.core1.dca2.hopone.net. | US |
| 3 | 66.36.224.18 AS0IANA-RSVD-0 | ge3-0.core1.iad1.hopone.net. | US |
| 4 | 206.223.115.141 AS2914NTTA-2914 | equinixexchange-ash.flagtelecom.com. | US |
| 5 | 62.216.128.49 AS15412FLAG-AS | so-1-1-0.0.cjr01.nyc007.flagtel.com. | GB |
| 6 | 62.216.128.134 AS15412FLAG-AS | so-1-1-0.0.cjr03.lax001.flagtel.com. | GB |
| 7 | 80.77.0.22 AS15412FLAG-AS | unknown.flagtel.com | GB |
| 8 | 58.71.0.68 AS9299IPG-AS-AP | unknown.net.ph | PH |
| 9 | [Unknown] | [Unknown - Firewall did not respond] | |
| 10 | 202.91.163.3 AS17452BITSTOP-AS-AP | unknown.dagupan.com | PH |
| 11 | 202.91.163.60 AS17452BITSTOP-AS-AP | [Reached Destination]www.isulongseoph.com.ph [No PTR] | PH |
Do you think I understand that? I don’t. But it seems hop 9 is not working well. Right ater net.ph. Is something wrong with net.ph? Or the firewall belongs to dagupan.com and I am getting blocked. Duh? I own the hosting account and the owner of the account is blocked? But we are not really sure what the real problem is right now. Except that I cannot access my own website through my connection from my ISP at home. But elsewhere I can access my own website. And I have actually been chatting with my wife to post for me in some of the previous postings.
And since this is the case, I have been playing around with Proxy.ph. Free plugging for them, too bad, they are down right now this very day I am posting on my Isulong SEOph blog. And if I can access my website through another connection except my own, then I can setup an SSH tunnel on my computer that cannot access my website and tunnel through my connection. And if I can do this at home, with a problematic connection, you can also do this a work where certain ports are blocked or some websites are blocked.*
With SSH Tunneling you can get through blocked connections at work. (assuming the SSH connections are blocked too.) Is your job preventing you from visiting certain sites? You can’t visit MySpace and you want to know how to get through the block MySpace access at work? You can’t chat at work because your IM’s are blocked at work and you want to know how to chat without getting blocked?
Whatever I did to solve my problem here, can also be used to get past some blocked connections you may also have at work. First is you need the SSH Tunnel software. You will also need a server with SSH access. Or even simply a hosting account with SSH access. Please note you will be using some bandwidth of your hosting server. You can also use your computer at home that is connected to the Internet with some high bandwidth connection.
Right now I use SSH Tunnel by RS4U, and I had no problems using it. But since I want to save on bandwidth of my server also, I use Microsoft Internet Explorer with the SSH Tunnel while my Firefox still uses the main connection.
Try configuring it and if ever you have problems, check the RS4U forums or post a comment below if you want to know how I setup my own browser.
*Author nor owner of this blog is not responsible for your actions if ever you get fired or reprimanded from your job for using an SSH tunnel. I personally know someone that got fired using an SSH tunnel at work since the IT guys were able to see him using Port 22 often which is the default SSH port.
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