[ERROR] remote username contains invalid characters

[Marbman21]

Since the update to Version 5.3.14.1 today on cpanel, I am getting the following error on backups, reindex, and config backups on multiple servers:

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[15/Oct/2024 14:58:06 +0000] [PID 256691] [ERROR] remote username contains invalid characters
rsync: connection unexpectedly closed (0 bytes received so far) [Receiver]
rsync error: unexplained error (code 255) at io.c(231) [Receiver=3.2.7]

This started within an hour of the jetbackup update. The validation of the destination checks out ok.

I also tried to update the ssh plugin, but I am getting the following error:

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Invalid plugin URL provided (https://repo.jetlicense.com/plugins//jetbackup5-plugin-destination-ssh-1.1.4-9.zip)

Let me also add that on some servers running the Jetbackup are backing up fine with the same exact destination configuration. So this is not on the destination end, but rather the Jetbackup end.

[Marbman21]

So after comparing various factors between the working servers and non-working servers. It seems to be related to the SSH plugin version. So now if I could get the SSH plugin update to work, I believe this will be resolved. So oany help with getting updated would be appreciated.

Update: After further investigation, it seems to be an issue with the IPV6 connection. There is no ping to IPV6, but IPV4 works fine. Is there any way to only use to IPV4 to pull the updates?

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[root@corp ~]# ping -4 repo.jetlicense.com
PING  (64.225.76.83) 56(84) bytes of data.
64 bytes from repo-prod-ams3.jetlicense.com (64.225.76.83): icmp_seq=1 ttl=51 time=90.9 ms
64 bytes from repo-prod-ams3.jetlicense.com (64.225.76.83): icmp_seq=2 ttl=51 time=89.5 ms
64 bytes from repo-prod-ams3.jetlicense.com (64.225.76.83): icmp_seq=3 ttl=51 time=89.5 ms
64 bytes from repo-prod-ams3.jetlicense.com (64.225.76.83): icmp_seq=4 ttl=51 time=89.5 ms
^C
---  ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3005ms
rtt min/avg/max/mdev = 89.526/89.879/90.902/0.590 ms
[root@corp ~]# ping -6 repo.jetlicense.com
PING repo.jetlicense.com(repo-prod-ams3.jetlicense.com (2a03:b0c0:2:d0::16a1:7001)) 56 data bytes
^C
--- repo.jetlicense.com ping statistics ---
9 packets transmitted, 0 received, 100% packet loss, time 8203ms

[JetAppsKevin]

Hello Marbman21,

To force an IPv4 connection, can you please try adding the following line to your server's /etc/hosts file?

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64.225.76.83 repo.jetlicense.com

If the issue persists, please contact our Tech Support team by emailing [email protected] so that they can check further.

Best Regards,