SSH client personalized configuration
Under each user's HOME directory, the file is .ssh / config; configuration file can enter personalized SSH configuration, such as time-out settings
Commonly used SSH client personalized configuration items
| Configuration Item Name | value | Explanation |
|---|---|---|
| ConnectTimeout | 10 | Timeout Settings |
| UserKnownHostsFile | /Dev/null | knownhosts file settings |
| StrictHostKeyChecking | no | Whether to join a host knownhosts file links |
Description: StrictHostKeyChecking no and UserKnownHostsFile /dev/null The two hosts kown key configured canceled checks for frequent reloading machine case, very useful.
Use ProxyCommand achieve springboard Login
Scenario: If the Client is not directly pass to ServerB, and ServerA can directly reach ServerB. So by Client Configuration, Client can ssh directly to ServerB
+ ---------------- + + ---------------- + + ------------- --- +
| | | | | |
| Client + ----> + ServerA + ----> + ServerB |
| | | | | |
+ -------------- - + + ---------------- + + ---------------- +
Suppose ServerA is 192.168.1.1 ServerB is 10.1.1.1, add the following configuration as long as the .ssh/config in
Host 10.1.1.1
ProxyCommand ssh 192.168.1.1 'nc% h% P'
Configuration Explanation: For host 10.1.1.1 host ssh, equivalent to execute ssh 192.168.1.1 "nc 10.1.1.1 22", although the client is not the route to 10.1.1.1