We upgraded one of our SLES 11.2 servers to 11.3 this morning and immediately began having intermittent VNC connectivity issues. This is a box that people use VNC to access exclusively so it’s causing us some headaches. I can VNC into it 2 or 3 times in a row but then it will fail with a “invalid protocol” error. I have to wait a few minutes before I try again so it must be some kind of timing issue. I spun up a backup of this machine from before the upgrade and that VNC is working flawlessly.
I’ve checked all the basic things but since I can connect several times before it begins failing, that eliminates questions such as “is the firewall enabled” or “is the machine listening on port 5901”, etc.
I’ve opened an SR with Novell on this but they have run out of ideas and have sent it to their backline but I was hoping perhaps someone had run into this and had solved it.
We upgraded one of our SLES 11.2 servers to 11.3 this morning and
immediately began having intermittent VNC connectivity issues. This is
a box that people use VNC to access exclusively so it’s causing us some
headaches. I can VNC into it 2 or 3 times in a row but then it will
fail with a “invalid protocol” error. I have to wait a few minutes
before I try again so it must be some kind of timing issue. I spun up a
backup of this machine from before the upgrade and that VNC is working
flawlessly.
I’ve checked all the basic things but since I can connect several times
before it begins failing, that eliminates questions such as “is the
firewall enabled” or “is the machine listening on port 5901”, etc.
I’ve opened an SR with Novell on this but they have run out of ideas and
have sent it to their backline but I was hoping perhaps someone had run
into this and had solved it.[/color]
Have you/Novell tried a tcpdump of the connection? Perhaps it would help
identify the cause.
We upgraded one of our SLES 11.2 servers to 11.3 this morning and
immediately began having intermittent VNC connectivity issues.[/color]
SLES11-SP3 now supports RDP. Perhaps a Remote Desktop connection would
be more reliable?
–
Kevin Boyle - Knowledge Partner
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