Category Archives: AIX

X11 Forwarding problems

Posted on November 17, 2020 by morsing

Trying to debug and simultaneously trawling Google for a non-trivial version of this issue: $ xclockX11 connection rejected because of wrong authentication.X connection to localhost:10.0 broken (explicit kill or server shutdown). I finally cracked it. This was from the outset … Continue reading →

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VI changing to lowercase

Posted on June 2, 2020 by morsing

I don’t know why I can never remember this one, but here it is for reference: :%s/.*/\L& .* = Match line& = What was matched No need for /g as .* already matches the line, and .* if faster than … Continue reading →

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Can’t bosboot on Veritas cluster

Posted on November 19, 2019 by morsing

I had an AIX Veritas cluster using DMP disk paths which couldn’t run bosboot or much else. Rootvg seemed locked down. The two commands below fixed it. vxdmpadm native enable vgname=rootvg vxdmpadm native release followed by: vxdmpadm native aqcuire These … Continue reading →

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Finding SQL query in TCP stream

Posted on July 11, 2017 by morsing

Just a little one to remember, as I use this occasionally, with this tcpdump you can read SQL queries, rsh commands etc: tcpdump -i en0 -s 0 -l -w – dst port 3306 | strings  

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rmsock bug and workaround

Posted on January 30, 2016 by morsing

I found a bug in rmsock on AIX 6.1 TL9 recently which caused a server crash. If run on a socket ID that has disappeared, the server just dumps and reboots. I came up with a work around for identifying … Continue reading →

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NFS soft versus hard mounts

Posted on June 28, 2013 by morsing

We had an “interesting” debate in the office yesterday. And when I say interesting it was more like “heated”. Soft vs. hard NFS mounts is really something that gets people going, mainly because some people has been annoyed by a … Continue reading →

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IRC and ##aix

Posted on November 11, 2012 by morsing

A kind of a follow-up from a well-known AIX blogger, promoting IRC and the AIX related channel ##aix. Even though IRC is old, there really isn’t any other equivalent medium to replace it, and with its continued popularity, that is … Continue reading →

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xpinfo and dyntrk – FSCSI_ERR10

Posted on March 3, 2012 by morsing

I had noticed lots of FSCSI_ERR10 ‘Configuration mismatch’ messages with identifier 1FB4FD21. The errpt entry had the PID as 12D0E4 hex in the sense data: SENSE DATA 0000 0000 0000 00D3 0000 0016 0200 0000 0000 0000 0000 0000 0000 0000 … Continue reading →

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