Timeline for How to reliably keep an SSH tunnel open?
Current License: CC BY-SA 3.0
16 events
| when toggle format | what | by | license | comment | |
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| Aug 14, 2020 at 7:10 | review | Suggested edits | |||
| Aug 17, 2020 at 18:20 | |||||
| Jun 20, 2020 at 0:48 | comment | added | Brian C |
DO NOT increase ServerAliveCountMax to a huge number - you are effectively disabling keepalive by doing so. ServerAliveCountMax limits the number of missed replies, not the number of successes, and terminates the connection if the other side is not responding. The understanding that it limits the overall amount of "keepalive" packets sent is based on a misreading of the manual. Thirty seconds of Googling will make this very clear.
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| Feb 13, 2020 at 9:58 | comment | added | 4F2E4A2E | Not working on macOS 10.15.3 | |
| Apr 27, 2016 at 7:28 | review | Suggested edits | |||
| Apr 27, 2016 at 11:50 | |||||
| Feb 20, 2014 at 0:13 | comment | added | Lambart | Downvoting because it makes no sense to set ServerAliveCountMax to a "high number". ServerAliveCountMax specifies how many times it will try to send the "keepalive" message before giving up. The default is 3, so with ServerAliveInterval 180, it will stop sending ONLY if the server has NOT RESPONDED after 9 minutes, in which case your connection is probably well and truly dead. | |
| S Jan 26, 2012 at 21:55 | history | suggested | metamatt | CC BY-SA 3.0 |
fixed math: 3x3 = 9
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| Jan 26, 2012 at 21:52 | review | Suggested edits | |||
| S Jan 26, 2012 at 21:55 | |||||
| Jan 26, 2012 at 21:51 | comment | added | metamatt | I'm voting this answer up because thanks for mentioning ServerAliveCountMax, and what happens if you specify ServerAliveInterval without ServerAliveCountMax. But like the preceding comments, I notice the calculation on "will stop sending after" is wrong, and I think this answer would serve better if it just gave the information on these options, not telling us how to apply them with cd and echo commands. | |
| Jan 26, 2012 at 21:50 | comment | added | metamatt | @mcnemesis: ServerAliveInterval 180 means 3 minutes. ServerAliveCountMax default of 3 means 3 of those intervals, so 9 minutes. | |
| Nov 30, 2011 at 14:37 | comment | added | JWL |
why does ServerAliveInterval 180 give us 6 minutes? intuition makes me try this : 180/60 == 3. So, does ServerAliveInterval work in multiples of 30 secs?
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| S Jul 6, 2011 at 4:35 | history | suggested | CommunityBot | CC BY-SA 3.0 |
Add ServerAliveCountMax to config.
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| Jul 6, 2011 at 0:45 | review | Suggested edits | |||
| S Jul 6, 2011 at 4:35 | |||||
| S Apr 23, 2011 at 3:28 | history | suggested | Sophie Alpert | CC BY-SA 3.0 |
formatting and common sense
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| Apr 23, 2011 at 3:22 | review | Suggested edits | |||
| S Apr 23, 2011 at 3:28 | |||||
| Mar 18, 2011 at 9:34 | comment | added | Peltier | Note that your command is not recommended if you already have a config file. Using >> for redirection would be a lot better! | |
| May 29, 2010 at 13:45 | history | answered | David Shaw | CC BY-SA 2.5 |