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I am trying to figure out this issue and am getting a weird error.

We have two boxes which used to talk to one another on the network. Both are reachable via ssh from a separate network, which means they are able to talk to their default gateways just fine. When we try to ping from the linux machine to the linux machine, we get a bunch of timeouts.

When we try to ping from the linux box back, we are getting

connect: no such process.

I can't seem to find much documentation on this error, though there consistently seem to be references to VPN stuff when googling for this error. The

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  • And you're not using IPsec?
    – FINESEC
    Nov 27, 2012 at 21:11
  • Just got on the box - it looks like another one of my teammates had started working on VPN stuff with it and had left it off after creating a config file in /etc/sysconfig/network-scripts/ifcfg-ipsec0, and in that file was a line stating DST=<ip we're trying to reach>. Ran an ifdown on that interface and suddenly ping started working correctly. Looks like I'll need to brush up on IPSec stuff. So what actually causes this error?
    – Matthew
    Nov 27, 2012 at 21:16

1 Answer 1

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Yes, it's a typical IPsec error that occurs when IPsec is misconfigured. Check your IPsec policy settings, your routing settings and make sure that racoon daemon is running.

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  • Thanks! After speaking with my coworker and he had apparently started setting it up right before Thanksgiving. Appreciate the help!
    – Matthew
    Nov 30, 2012 at 20:40

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