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Ibrahim is conducting experiments on using Big data with PingER data and writing a conference paper. He has a cloud of 4 computers at UM running Hadoop and 15 at MYREN. The experiment is on going, have have not been unable to complete yet. For the conference he just submitted an abstract about join processing in MapReduce. He is expecting result in coming days. 5/3/2015.
UNIMAS
Anjum reported that UM had experienced a TCP syn DOS attack prior to Mar 12th (when an IDS was put in place). It occurred mainly for several days before between the hours on noon- 2pm and 7-7 in the evening (Malaysia time). He suggested looking to see if PingER could spit the effect. Ibrahim, Les and Anjum will look at.
UNIMAS
Johari has a Raspberry Pi 2. It has double the RAM and a better processor. The previous one had a problem that Johari has a Raspberry Pi 2. It has double the RAM and a better processor. The previous one had a problem that it randomly rebooted and then it was not possible to ssh into it. the new one will go to the Data Center arouond May 11, 2015.
Johari still has to uncover the problem of the traceroute from UNIMAS. UDP has been unblocked. The MYREN host works fine and share most of the hops. Thus the problem must be in the first few hops.
UTM
Saqib will work on the Malaysia Case study and change it into a conference paper. in June he hopes to present it at an Advanced Network Workshop at UM in Augiust.
The current case study was unable to attend 4/8/2015. He will send an update by email.Saqib has updated the case study and is available in Google drive as a "Shared-PingER" document for review at https://drive.google.com/folderview?id=0B-NEKleLll79ZFNmUnhiVGJ0Nmc&usp=sharing_eid
The traceroute problem regarding maximum reachable hops ( i.e. 11 hopes ) may be since the Unix/Linux/OSX traceroute uses UDP to send the requests. The first request is sent to a particular port (33434), with a ttl to tell it how many hops to go to. The ttl starts at 1 is incremented as it tries the next hop, also the port is incremented (up to 33465). It looks like the first few UDP ports are enabled and then they are blocked. The Windows traceroute uses ICMP to send the probes so does not see the problem.
MYREN
Fizi reports that the MYREN PingER host at UTM was reported down on 22 March, it came back up again the next day.
He has been reading up about the PingER project.
- A goal would be to compare and contrast the benefits of perfSONAR and PingER.
NUST
The following hosts are sometimes unable to be found via DNS when using ping, for example:
Saqib points out a number of Malaysian routes are IPv6 which could have problems for traceroute. Saqib is checking
MYREN
Fizi reports that the MYREN PingER host at UTM was reported down on 22 March, it came back up again the next day.
He has been reading up about the PingER project.
- A goal would be to compare and contrast the benefits of perfSONAR and PingER.
NUST
Samad reports there are 13 hosts were not working, 5 are fine now. The IP address of one host changed. Samad will send information.
The following hosts are sometimes unable to be found via DNS when using ping, for example:
| Host | Time PDT |
|---|---|
pinger.uob.edu.pk | Apr 8, 11:01am, Apr 11, 11 |
| Host | Time PDT |
pinger.uob.edu.pk | Apr 8, 11:01am, Apr 11, 11:00am |
pinger.usindh.edu.pk | Apr 6, 1:04am, Apr 5, 1:05am Apr 4, 1:02am |
pinger.isra.edu.pk | Apr 25, 12:58am Apr 6, 1:04am Apr 4, 1:02am |
pinger.kohat.edu.pk | Apr 25, 12:58am Apr 24,1:02am Apr 4, 1:02am |
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Next meeting: Wednesday June 3rd 2015 9:00pm Pacific Standard Time, Thursday June 4th 2015 9:00am Pakistan time, Thursday June 4th 2015 noon Malaysian time, Thursday June 4th, 2015 02:00am Rio Standard Time.
Old Items
Traceroute at UTM 5/9/2015
The traceroute problem regarding maximum reachable hops ( i.e. 11 hopes ) may be since the Unix/Linux/OSX traceroute uses UDP to send the requests. The first request is sent to a particular port (33434), with a ttl to tell it how many hops to go to. The ttl starts at 1 is incremented as it tries the next hop, also the port is incremented (up to 33465). It looks like the first few UDP ports are enabled and then they are blocked. The Windows traceroute uses ICMP to send the probes so does not see the problem.
Raspberry Pi 5/9/2015
The two major issues with the Raspberry Pi would be:
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