Subject: ssh -D : the Coolest ssh trick yet. - msg#01182

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Why is my filesystem fscking?

I just stopped auto-fs on a server and unmounted /dev/md0 cleanly. I turned around and restarted autofs and tried to cd to the filesystem. In turn it fsck'd the drive. It's done that the last 3 times autofs was restarted. Any ideas why? fstab: /dev/md0 /mnt/global1 ext2 noauto 1 3 auto.mnt: global1 -fstype=ext2 :/dev/md0 It's in the fstab with a fsck pass number so the filesystem will be checked and mount in the event of a crash. One odd note also: root 3092 1 0 08:31 pts/0 00:00:00 /usr/sbin/automount /mnt file /etc/auto.mnt root 3112 1 0 08:31 pts/0 00:00:00 /usr/sbin/automount /auto file /etc/auto.auto root 3131 3092 0 08:31 pts/0 00:00:00 /usr/sbin/automount /mnt file /etc/auto.mnt root 3132 3131 8 08:31 pts/0 00:00:23 /sbin/fsck.ext2 -p /dev/md0 It does though only show mounted once but occasionally it will mount up the files in /mnt multiple times. Thoughts, theories? Robert :wq! --------------------------------------------------------------------------- Robert L. Harris | PGP Key ID: E344DA3B @ x-hkp://pgp.mit.edu DISCLAIMER: These are MY OPINIONS ALONE. I speak for no-one else. Diagnosis: witzelsucht IPv6 = robert-Y6/AIJKt007MFIMGWPqnnw@xxxxxxxxxxxxxxxx http://ipv6.rdlg.net IPv4 = robert-nGTtcsG5Cm3MFIMGWPqnnw@xxxxxxxxxxxxxxxx http://www.rdlg.net pgp5gmQFpcTdQ.pgp Description: PGP signature

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Re: ssh -D : the Coolest ssh trick yet.

Has anyone been able to do an X -query <ip> via ssh port redirection. I tried to do it behind and interal nat to an public address. XDMCP uses UDP thus I was unsuccessful. On Thu, 2003-03-20 at 09:08, John Wells wrote: > In response to a question of mine awhile back, Jason Day pointed out the > -D flag to ssh, which allows ssh to function as a Socks v4 proxy. > > Just wanted to forward this to the group, in case anyone missed it. It > has to be the coolest trick I've learned this year. It essentially > allows you to bypass any firewall or web filtering software (at least > for those applications that support Socks v4 proxies). > > So, for two years now I've been unable to do certain things from work > because they required access via a web brower to uncommon port numbers > (6801, etc.) that are blocked by our company's firewall. I've also been > wary that Big Brother watches everything I do online here at work. Not > that I do anything like surf for pr0n or anything like that, but it's > just that unsettling feeling of being watched. > > Anyway, ssh -D ends all that trouble. > > Here's how you do it: > > First, you have to have a box outside the firewall that you're able to > ssh into. I have a home mail server on my DSL connection, and that > works just fine. Second, your company's firewall has to allow ssh > through (ours does, fortunately). > > So, it's as simple as connecting to your home machine using the -D flag, > followed by a port number that's not in use on your local machine. > > ssh -D 5555 mylogin-Fx3TKirPuA8ctKeN9xuOhR2eb7JE58TQ@xxxxxxxxxxxxxxxx > > Once you're logged in, point whatever application you want to run > through the proxy to localhost:5555. For mozilla, go to > Edit->Preferences->Advanced->Proxies. Choose "Manual proxy > configuration". In the SOCKS HOST: box, put 127.0.0.1, and in the Port > box to the right put 5555 (or whatever port you used). Also, select the > SOCKS v4 radio button below these boxes. > > Ok out of the Preferences dialog, and there you go. Secure web surfing > from your company's LAN. > > Make sure you don't close the terminal that's logged into your home > machine while you're using this feature. > > Thanks to Jason for pointing this out. > > John > > > > _______________________________________________ > Ale mailing list > Ale-S6NtOCTnm14@xxxxxxxxxxxxxxxx > http://www.ale.org/mailman/listinfo/ale

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Why is my filesystem fscking?

I just stopped auto-fs on a server and unmounted /dev/md0 cleanly. I turned around and restarted autofs and tried to cd to the filesystem. In turn it fsck'd the drive. It's done that the last 3 times autofs was restarted. Any ideas why? fstab: /dev/md0 /mnt/global1 ext2 noauto 1 3 auto.mnt: global1 -fstype=ext2 :/dev/md0 It's in the fstab with a fsck pass number so the filesystem will be checked and mount in the event of a crash. One odd note also: root 3092 1 0 08:31 pts/0 00:00:00 /usr/sbin/automount /mnt file /etc/auto.mnt root 3112 1 0 08:31 pts/0 00:00:00 /usr/sbin/automount /auto file /etc/auto.auto root 3131 3092 0 08:31 pts/0 00:00:00 /usr/sbin/automount /mnt file /etc/auto.mnt root 3132 3131 8 08:31 pts/0 00:00:23 /sbin/fsck.ext2 -p /dev/md0 It does though only show mounted once but occasionally it will mount up the files in /mnt multiple times. Thoughts, theories? Robert :wq! --------------------------------------------------------------------------- Robert L. Harris | PGP Key ID: E344DA3B @ x-hkp://pgp.mit.edu DISCLAIMER: These are MY OPINIONS ALONE. I speak for no-one else. Diagnosis: witzelsucht IPv6 = robert-Y6/AIJKt007MFIMGWPqnnw@xxxxxxxxxxxxxxxx http://ipv6.rdlg.net IPv4 = robert-nGTtcsG5Cm3MFIMGWPqnnw@xxxxxxxxxxxxxxxx http://www.rdlg.net pgp5gmQFpcTdQ.pgp Description: PGP signature

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Re: ssh -D : the Coolest ssh trick yet.

Has anyone been able to do an X -query <ip> via ssh port redirection. I tried to do it behind and interal nat to an public address. XDMCP uses UDP thus I was unsuccessful. On Thu, 2003-03-20 at 09:08, John Wells wrote: > In response to a question of mine awhile back, Jason Day pointed out the > -D flag to ssh, which allows ssh to function as a Socks v4 proxy. > > Just wanted to forward this to the group, in case anyone missed it. It > has to be the coolest trick I've learned this year. It essentially > allows you to bypass any firewall or web filtering software (at least > for those applications that support Socks v4 proxies). > > So, for two years now I've been unable to do certain things from work > because they required access via a web brower to uncommon port numbers > (6801, etc.) that are blocked by our company's firewall. I've also been > wary that Big Brother watches everything I do online here at work. Not > that I do anything like surf for pr0n or anything like that, but it's > just that unsettling feeling of being watched. > > Anyway, ssh -D ends all that trouble. > > Here's how you do it: > > First, you have to have a box outside the firewall that you're able to > ssh into. I have a home mail server on my DSL connection, and that > works just fine. Second, your company's firewall has to allow ssh > through (ours does, fortunately). > > So, it's as simple as connecting to your home machine using the -D flag, > followed by a port number that's not in use on your local machine. > > ssh -D 5555 mylogin-Fx3TKirPuA8ctKeN9xuOhR2eb7JE58TQ@xxxxxxxxxxxxxxxx > > Once you're logged in, point whatever application you want to run > through the proxy to localhost:5555. For mozilla, go to > Edit->Preferences->Advanced->Proxies. Choose "Manual proxy > configuration". In the SOCKS HOST: box, put 127.0.0.1, and in the Port > box to the right put 5555 (or whatever port you used). Also, select the > SOCKS v4 radio button below these boxes. > > Ok out of the Preferences dialog, and there you go. Secure web surfing > from your company's LAN. > > Make sure you don't close the terminal that's logged into your home > machine while you're using this feature. > > Thanks to Jason for pointing this out. > > John > > > > _______________________________________________ > Ale mailing list > Ale-S6NtOCTnm14@xxxxxxxxxxxxxxxx > http://www.ale.org/mailman/listinfo/ale