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reverse ssh connections

Posted 05-23-2011 at 05:01 AM by neonsignal
Updated 05-23-2011 at 05:06 AM by neonsignal

Setting up a reverse ssh connection can be useful when the destination machine is inside a NAT, and a port cannot be forwarded to it (eg, a work LAN), but an ssh in the reverse direction is possible.

Because the destination machine must set up the reverse connection automatically, the autossh utility can be used to keep the ssh connection alive so that it doesn't time out. From the destination machine:
Code:
autossh -f -p client-ssh-port -R reverse-ssh-port:localhost:22 client-ip
...
Senior Member
Posted in Uncategorized
Views 670 Comments 0 neonsignal is offline
Old

closing ports

Posted 05-22-2011 at 06:10 AM by neonsignal

The default debian installation only has a few daemons listening on ports. These can be also closed if desired (assuming they are not being used).

The rpcbind port (111) can be closed by removing the portmap package. Since it is used by nfs, this facility will also be removed:
Code:
apt-get autoremove portmap
The auth port (113) can be closed by commenting out the ident line in the server configuration database /etc/inetd.conf. The daemon is stopped...
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Posted in Uncategorized
Views 353 Comments 0 neonsignal is offline
Old

Try Linux before you switch

Posted 05-21-2011 at 07:22 PM by Telengard (Here are some things which I hope will be helpful.)
Updated 05-23-2011 at 10:12 PM by Telengard (Much more info, links for reference)

Are you thinking of switching from Windows to Linux? Are you worried about the installation process? How can you protect your Windows system and data just in case something goes wrong?

Before you begin playing with an operating system you may know very little about, please consider backing up any data you care about to at least two external media.

Boot Linux from a live CD

Notes...
Member
Posted in newbie faqs
Views 13005 Comments 11 Telengard is offline
Old

New laptop!

Posted 05-21-2011 at 02:31 AM by lupusarcanus (Lone Wolf)

Another HP finds itself at my house somehow . It's an HP EliteBook 8740w. Bought it slightly used from a nice guy on another forum for $1025. I love it so far.

Specs:

- Intel Core i5-560M
- ATI FirePro M7820
- 8 GiB RAM
- 500 GB 7200 RPM HDD

Been playing around with the reinstalled OEM Windows 7 Pro 64-bit and enjoying myself. Had quite a bit of trouble with PayPal but everything is pretty much done now.
Senior Member
Posted in Uncategorized
Views 2867 Comments 2 lupusarcanus is offline
Old

Ahhhh.

Posted 05-20-2011 at 01:10 PM by peonuser

Signed up to be a contributor to one of the major linux distros.

Set up an account at sourceforge to start passing out software.

Tried to get to a web site that never goes down, but could not. Then I went to my instructables account to see how it was doing. Hardly any additional views. Hmmm. Decided to check on the web site that was down. Yeah, it came back up! They I noticed my views started growing again. Assumption: the web site was never down, but there was some...
Member
Posted in Uncategorized
Views 4808 Comments 4 peonuser is offline

  



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