[Libguestfs] [PATCH 3/4] p2v: Send ping packets every 5 minutes to sshd.
Also drop the connection if no response at all has been received after
30 minutes.
This action should prevent firewall timeouts from causing virt-p2v to
fail (see this thread:
https://www.redhat.com/archives/libguestfs/2017-February/msg00010.html).
Thanks: Tomáš Golembiovský
---
p2v/ssh.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/p2v/ssh.c b/p2v/ssh.c
index 817048c..4dd4c44 100644
--- a/p2v/ssh.c
+++ b/p2v/ssh.c
@@ -354,6 +354,10 @@ start_ssh (unsigned spawn_flags, struct config *config,
snprintf (connect_timeout_str, sizeof connect_timeout_str,
"ConnectTimeout=%d", SSH_TIMEOUT);
ADD_ARG (argv, i, connect_timeout_str);
+ ADD_ARG (argv, i, "-o"); /* Send ping packets every 5 mins to sshd. */
+ ADD_ARG (argv, i, "ServerAliveInterval=300");
+ ADD_ARG (argv, i, "-o");
+ ADD_ARG (argv, i, "ServerAliveCountMax=6");
if (using_password_auth) {
/* Only use password authentication. */
ADD_ARG (argv, i, "-o");
--
2.10.2