[Users] VE loses connectivity

Gregor at HostGIS gregor at hostgis.com
Sun Mar 15 13:25:22 EDT 2009

> in a period of time some of my VE's (both on subnet1 and 
> subnet2) loses connections.

I've had a long-standing problem, as well, with HNs and VPSs randomly 
losing connectivity for seconds at a time. It's been enough to set off 
Nagios, to delay SMTP, etc.

My workaround (I won't call it a "solution") was to write a simple 
"gratuitous ARP daemon" or "garpd" This works on the same principle as 
you discovered: if I retransmit ARP, it solves the problem for a little 

If you want the garpd code, assuming the folks here can't provide a real 
fix, I'm glad to post it to the list and/or wiki.

HostGIS, Open Source solutions for the global GIS community
Greg Allensworth - SysAdmin, Programmer, GIS Person, Security
Network+   Server+   A+   Security+

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