ssh:packet_write_wait: Connection to xxx Broken pipe

Sometimes situations encountered using ssh to log off: packet_write_wait: Connection to xxx.xxx.xxx.xxx Broken pipe. What causes it?

Probably because the server idle time is too long to close the ssh connection (log on to the server does not operate for a long time). You can configure the ssh client ServerAliveInterval, or by configuring ssh server-side ClientAliveInterval.

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ServerAliveInterval          Sets a timeout interval in seconds after which if no data has          been received from the server, ssh(1) will send a message through          the encrypted channel to request a response from the server.  The          default is 0, indicating that these messages will not be sent to          the server.  This option applies to protocol version 2 only.   ClientAliveInterval          Sets a timeout interval in seconds after which if no data has          been received from the client, sshd(8) will send a message          through the encrypted channel to request a response from the          client.  The default is 0, indicating that these messages will          not be sent to the client.  This option applies to protocol          version 2 only.

ssh server configuration:

1	echo "ClientAliveInterval 60" | sudo tee -a /etc/ssh/sshd_config

The above command to configure ssh to connect more than 60 seconds without operation, disconnected.

ssh client configuration:

1	echo "ServerAliveInterval 60" >> ~/.ssh/config

Need to set timeout.