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Why do I receive "PTY allocation request failed on channel 0" when attempting to use SSH or Terminal?

Ryland Robertson
  • Updated

Question

Why do I receive "PTY allocation request failed on channel 0" when attempting to use SSH or Terminal?

 

Answer

The error can occur for a number of reasons and has been noted to be fixed upon rebooting the server or remounting /dev/pts.

 

The following third-party article provides more discussion and possible resolutions:

 

https://stackoverflow.com/questions/27021641/how-to-fix-request-failed-on-channel-0/30191214

 

 

 

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