I upgraded termux
recently.
When I do:
ssh phone
it disconnects after 44 seconds. It disconnects even if there is activity in the session (eg. ping google.com
).
If I am active in termux
using the phone, then ssh
does not disconnect. So it seems Android is killing the ssh
connection. tcpdump
confirms that and shows a reset packet is sent from the phone killing the connection:
13:30:37.093254 IP 192.168.1.122.2222 > 192.168.1.129.41938: Flags [R.], seq 4542, ack 5622, win 396, options [nop,nop,TS val 3374991 ecr 3768615485], length 0
Before upgrading termux
this did not happen. So something happened during the upgrade that caused this to happen.
I have tried both to click acquire wakelock
and release wakelock
. Neither helped.
I have tried both to click allow
and don't allow
in Battery Optimization for Termux. Neither helped.
As a workaround I can connect USB. Then Android does not disconnect the ssh
-connection. This makes me think the disconnection is deliberate and related to power saving.
How can I make Android not kill the ssh
connection?
ssh
but Termux app because it doesn't have a background service running. You need to keep Termux in foreground. Or disable Battery Optimization for Termux and Acquire wakelock. When phone is charging over USB, Battery Optimization isn't in effect.