Thursday, October 3, 2013

Convenient Remote Access with SSH Config

If you are working with a lot of remote ssh hosts it becomes hard to remember all that host specific information: username, ip address, identity file, non-standard port or local/remote port forwarding. ssh_config to rescue. Here is a sample to give you an idea (file ~/.ssh/config):
Compression yes
IdentityFile ~/.ssh/id_rsa
LogLevel ERROR
Port 22

Host h1
    User master
    IdentityFile ~/.ssh/h1.pem

Host db1
    User pg
    LocalForward 5432
The above configuration let me access those hosts simply by name, e.g.:
ssh h1
scp schema.sql db1:~/

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