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Questions on ssh
When I learned that 5.0.7 already had SSH installed, I immediately uninstalled MY version. Would this have deleted any files that the included version needed? What do I need to do to restore/reinstall the included version?
ssh forwarding Ssh forwarding is powerful stuff, but using it can be confusing. For example, let's say we have a machine that our firewall will send traffic to, but we actually want to ssh to another internal machine. To be specific: 192.168.2.1 is the machine that we can access from outside using "server.xyz.com", but we really want to ssh to 192.168.2.10 with user "fred". To make it even more interesting, "fred" isn't a valid username on 192.168.2.1, but "john" is. We know passwords for both accounts.
How can I restrict who can login with ssh? We often have systems that have run for years with no connection to the outside world, and now suddenly an Internet connection is added and ssh access is set up. Unfortunately, many users have weak or even blank passwords. If only some users need to use ssh, it's best to set up new users with strong passwords and restrict ssh to only those users.
ssh forwarding Ssh forwarding is powerful stuff, but using it can be confusing. For example, let's say we have a machine that our firewall will send traffic to, but we actually want to ssh to another internal machine. To be specific: 192.168.2.1 is the machine that we can access from outside using "server.xyz.com", but we really want to ssh to 192.168.2.10 with user "fred". To make it even more interesting, "fred" isn't a valid username on 192.168.2.1, but "john" is. We know passwords for both accounts.
How can I restrict who can login with ssh? We often have systems that have run for years with no connection to the outside world, and now suddenly an Internet connection is added and ssh access is set up. Unfortunately, many users have weak or even blank passwords. If only some users need to use ssh, it's best to set up new users with strong passwords and restrict ssh to only those users.
| Title | Date | Comments | |||
|---|---|---|---|---|---|
| Centos ssh failure | 2009 06 | 2009/06/08 18:51 TonyLawrence | |||
| Questions on ssh | 2008 10 | 2008/10/08 15:27 BigDumbDinosaur | |||
| ssh forwarding | 2006 06 | ||||
| SSH_CLIENT, SSH_CONNECTION (OpenSSH Variables) | 2005 05 | ||||
| SSH Risk from known_hosts? | 2005 05 | 2007/01/12 10:05 TonyLawrence | |||
| IP spoofing and automatic blocking | 2005 03 | ||||
| More ssh ideas | 2005 02 | ||||
| SSH passphrases and keys | 2005 02 | 2009/07/31 14:18 TonyLawrence | |||
| SSH Login Attacks | 2005 01 | 2008/02/23 17:35 TonyLawrence | |||
| Security Paranoia - restricting ssh access | 2004 10 | 2006/08/17 21:36 anonymous | |||
| Securing POP mail access in Mac OS X | 2003 03 | ||||
| SSH- The Secure Shell | 2001 05 | ||||
| SSH | 2001 05 | 2007/09/06 15:32 TonyLawrence | |||
| DSL and Cable Modem Security with SSH | 2000 02 | 2008/05/05 15:16 anonymous | |||
| How can I restrict who can login with ssh? | 1997-2003 | 2009/07/07 10:24 TonyLawrence | |||
| Where can I get ssh? | 1997-2003 | ||||
| I ssh to a Linux box and am immediately disconnected | 1997-2003 | ||||
| How can I tell if a user logged in locally, used rlogin, telnet or ssh? | 1997-2003 | ||||
