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Bebo

Bebo's account at SLAC was 'Off-Boarded' since his sponsor (Umar) had left SLAC and there was nobody to 'On-Board' him when his current term expired. Les got the new head of networking at SLAC (Mark) to sponsor Bebo, and Bebo was 'On-Boarded' 3/2/2020.

NUST (Updated 7/24/2019)

Bebo brought our attention to a report from KeepitOn on the 213 Internet shutdowns in 2019. An internet shutdown happens when someone — usually a government — intentionally disrupts the internet or mobile apps to control what people say or do.

NUST

 

IPv6 host at NUST:

Wajahat has requested Hasan to install PingER on an IPv6 host at NUST, Saqib has contacted Hasan to tell him where to find and upload the code. There is not a host name for the MA yet. Hopefully, this will be available by next month's meeting.

  •  7/24/2019 Les emailed Wajahat with a request for an update.
  • At the meeting Wajahat had asked the student to contact Saqib and get the information on energizing IPv6. Saqib provided the information, but the student could not access the URL (apparently the URLwas down). Wajahat was on leave and when he returned the internship had expired, so Wajahat is unsure what happened. Wajahat will start a new student next week and will set him on the IPv6 project. Progress? 

Sent email on 2/4/2020 to Kiran at NUST on how to bring the vu host's pinger.xml up to date. As of 2/3/2020 pinger.xml at vu now looks good and we now appear to be able to gather good data.

We are working on maggie2, monitor and nwfpuet:

UAF (University of Agriculture, Faisalabad)/GHZU

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Saqib registered a DNS name for GC Women University Faisalabad. The new URL is http://pinger.gcwuf.edu.pk/cgi-bin/ping_data.pl. Previously there was no DNS name so the name was reported as 121.52.153.227. This required a change in the <SrcName> in pinger.xml and exposed a bug in ping_data.pl which has been fixed in the latest release (4.6).

SLAC

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  • Les turned on the debugging to investigate the discovery that several analysis scripts had stopped working in November 2019
    • Each night we run about 100 analysis scripts as batch jobs and after fixing problems with the mon-lib.pl etc. we still found about 10% were randomly failing.
    • After about 4 weeks it eventually transpired that some of the batch machines had not been enabled to access the Oracle database via the firewall. The jobs submitted to those hosts failed.
    • The cause of the problem was eventually identified about January 3rd and fixed about January 6th. No data was lost.
  • The new version of Linux CentOS7, does not appear to support the following modules that are used by the PingER analysis.
    • The Oracle database interface. PingER uses Oracle so there could be a problem. 
    • The perl statistics module
    • I will restrict the PingER analysis jobs to the earlier version of Linux (RHEL6) to avoid these problems. I am working with the systems folks at SLAC and looking into when the current version of Linux at SLAC (RHEL6) will no longer be supported and following SLAC's planning on how or whether to address the issues.
      • Rhel6 has full support until Nov 30, 2020. It then goes on "extended" support until June 2024. I expect SLAC will continue to use it during the extended support phase, at least for a couple of years.
      • Umar did some research and found:

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Host
State
last seen
Status
pinger.nchc.org.tw Intermittent problems starting 11/9/2019, it is not pingable starting 11/12/2019.  
pinger.vu.edu.pkUnable to gather data since 29th August, 2019. The host is pingable. Emailed Wajahat 11/3/2019. Wajahat responded 11/11/2019 "Anything improved?". Les responded they are still not working with more details and suggesting we focus on vu. 11/20/2019 Les asks if there is an update? Wajanat responded 11/20/2019 "These guys are not responding. We are trying to contact them. Already tried multiple times." This just applies to vu. Wajahat recommends we keep trying to gather data. I have turned off the warnings. Kieran Kiran fixed it 2/3/2020 by restoring the pinger.xml file following email instructions from Les8/28/2019Fixed 2/3/2020.
monitor.seecs.edu.pkNo data since 10/29/2019, host is pingable email to Wajahat 11/7/2019. Reminder to Kiran and Wajahat 2/16/2020. Host not pingable sent email to Kiran and Wajahat 3/3/2020.10/27/2019 
maggie2.seecs.edu.pkNo data since 11/4/2019, host is pingable email to Wajahat 11/2/2019, 11/20/2019. Reminder to Kiran and Wajahat 2/16/2020. Host no longer pingable, sent email to Kiran and Wajahat 3/3/2020.  
pinger.nwfpuet.edu.pkSomething amiss since April 2019 when it dropped from monitoring over 150 targets down to 4. There is nothing in <BeaconsList>, all the hosts it attempts to monitor are in the locally manually maintained <NodeList>. Does not ping by name. Email sent 11/7/2019, and again 11/20/2019. Reminder to Kiran and Wajahat 2/16/2020.   
pingeramity.inContinues to be unstable. Email 8/29/2019. Turned off email warnings 11/20/2019.  

Next Meeting

Next meeting:  There will be a Doodle poll, for  2020 at 9 pm Pacific time; a day later 9:00 am Pakistan time; 9:30 am India time; 12:00 pm Malaysian & Guangzhou time;  1:00 pm Thailand time; 6:00 am Jordan time. 5:00am Turkey time.  

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