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This is a wiki home for high-performance computing at the NRAO. The area is still undergoing organizational changes but content in the Categories section is either actively maintained or will exist in coming months.

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Recently changed topics across the HPC web

Listing the twelve most recent changes...

Web Topic Summary Date - UserSorted descending
HPC UsnoDifxPatch2Draft Neo Correlator Patching The patch process for the Neo correlator (installed at USNO on November 2019) is outlined below. A set of "checkboxes" is provided to assi... 2020-10-28 - 18:11 - JimJacobs
HPC UsnoDifxOsPatch2 Neo Correlator Patching The patch process for the Neo correlator (installed at USNO on November 2019) is outlined below. A set of "checkboxes" is provided to assi... 2020-10-28 - 17:20 - JimJacobs
HPC UsnoDifxOsPatch2ChecklistItemState WARNING! THIS TOPIC IS GENERATED BY System.ChecklistPlugin PLUGIN. DO NOT EDIT THIS TOPIC (except table data)! Back to the checklist topic UsnoDifxOsPatch2. *con... 2020-10-27 - 18:29 - JimJacobs
HPC UsnoDifxAide2 AIDE AIDE is a program that scans important files in the system and reports any changes in the files relative to the accepted baseline. The security STIG require... 2020-09-30 - 12:31 - JimJacobs
HPC UsnoDifxServerNagiosAck2 Shutting off Nagios Alarms When a nagios problem can't be fixed right away it can get tiresome to have the alarm message coming out every hour or so. Almost the s... 2020-09-30 - 11:26 - JimJacobs
HPC UsnoDifx2-200924 17:38 root@bg mds 1 T ~ # yum install mlnx ofed all Loaded plugins: langpacks, product... 2020-09-24 - 17:47 - JimJacobs
HPC UsnoDifxPtyFix2 Pty Allocation Problem So far, this problem has mostly occurred on server 1 on both clusters, probably because it gets the most login traffic suring maintenance. ... 2020-09-21 - 10:22 - JimJacobs
HPC UsnoDifxServerDebuggingSeLinux2 Debugging SE Linux Both server 1..2 and the BGFS hosts are running SE Linux in targeted mode; the SWCs are not running SE Linux although since the images are host... 2020-09-14 - 13:13 - JimJacobs
HPC UsnoDifxLogging2 Logging Rsyslog Server 1 runs rsyslogd via the systemd rsyslog.service; the main configuration for the rsyslod is /etc/rsyslog.conf. In addtion, server 1 provide... 2020-09-09 - 16:44 - JimJacobs
HPC UsnoDifxDNS2 Correlator DNS Service Server Configuration Both server 1 and server 2 provide DNS service to the correlator. Server 2 should be considered a backup to server 1.... 2020-09-09 - 13:08 - JimJacobs
HPC UsnoDifxNTP2 Time Service Overview Time services is provided primarily by server 1 using the chronyd daemon. The configuraiton file for chronyd is /etc/chrony.conf. Service... 2020-09-09 - 13:06 - JimJacobs
HPC UsnoDifxSMTP2 Mail Service Overview Since the correlator is effectively a compute device, very little email service is required. The only exception is that the system administ... 2020-09-09 - 13:02 - JimJacobs

More extensive change lists are available via the WebChanges topic.

HPC Web Utilities

Topic revision: r23 - 2018-10-16, MikeHatz
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