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public:ssh [2009/04/07 10:57] – created Nico | public:ssh [2023/06/21 22:30] (current) – fix code tag bug Nico | ||
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once connected to server_to_connect_to, | once connected to server_to_connect_to, | ||
+ | |||
+ | ====== SOCKS proxies ====== | ||
+ | |||
+ | < | ||
+ | ssh -D 8080 server_to_connect_to | ||
+ | </ | ||
+ | |||
+ | once connected to server_to_connect_to, | ||
+ | |||
+ | ====== Using a local proxy to enable internet access on a remote host ====== | ||
+ | |||
+ | * install some proxy software (i.e., Squid) | ||
+ | * connect to the server, and map a port to the proxy' | ||
+ | |||
+ | |||
+ | < | ||
+ | ssh -R8181: | ||
+ | </ | ||
+ | * once connected, enter: | ||
+ | |||
+ | < | ||
+ | export http_proxy=http:// | ||
+ | </ | ||
+ | * surf | ||
+ | |||
+ | ====== Run a command on login ====== | ||
+ | |||
+ | Commands in / | ||
+ | |||
+ | < | ||
+ | #!/bin/sh | ||
+ | # source: http:// | ||
+ | DATE=`date " | ||
+ | IP=`echo $SSH_CONNECTION | awk ' | ||
+ | REVERSE=`dig -x $IP +short` | ||
+ | HOSTNAME=`hostname` | ||
+ | |||
+ | echo " | ||
+ | IP: $IP | ||
+ | ReverseDNS: $REVERSE | ||
+ | Date: $DATE | ||
+ | |||
+ | " | mail -s " | ||
+ | </ | ||
+ | |||
+ | ====== Multiplexing ====== | ||
+ | |||
+ | If you make several connections to the same server, you can speed up every connection after the first one by enabling multiplexing. | ||
+ | |||
+ | * create the directory where connections' | ||
+ | |||
+ | < | ||
+ | $ mkdir -p ~/ | ||
+ | $ chmod 700 ~/ | ||
+ | </ | ||
+ | |||
+ | * Enable multiplexing for every hosts in .ssh/ | ||
+ | |||
+ | < | ||
+ | Host * | ||
+ | ControlMaster auto | ||
+ | ControlPath ~/ | ||
+ | </ | ||
+ | |||
+ | Warning: This will not work with tunneled protocols or forwarded ports (See [[http:// |