Alamo network slow connections

Submitted by David Gignac on Mon, 20 Jan 2014, 11:53:46 GMT

FutureGrid Hardware Outage Information

Alamo network slow connections

Status
Resolved
Type
Network
Impacted systems
alamo
Start of outage
Mon, 20 Jan 2014, 06:05 EST
Anticipated end of outage
Wed, 22 Jan 2014, 14:00 EST

Description

The alamo cluster was running an older version of NTP we was used in DDOS attack. NTP had been patched and reconfigured, but there are residual network performance issues. I will update when resolved.

Resolution

I upgraded the ntp package on all master, login and computes where applicable. I also added: restrict default kod nomodify nopeer notrap noquery options to the ntp.conf on all nodes.

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