Sorry to bother you guys on this stupid question. last time I re-install OS for all blades to keep them the same version. after I mount, set keyless ssh, the terimnal gives the error below:

[proxy:0:1@iocfccd3.aps.anl.gov] HYDU_sock_connect (./utils/sock/sock.c:174): unable to connect from "iocfccd3.aps.anl.gov" to "iocfccd1.aps.anl.gov" (No route to host)
[proxy:0:1@iocfccd3.aps.anl.gov] main (./pm/pmiserv/pmip.c:189): unable to connect to server iocfccd1.aps.anl.gov at port 38242 (check for firewalls!)

I can ssh from iocfccd1 to iocfccd3 without password. Should I shut down all firewalls on each server? I cannot find out where is the problem. Thank you

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Best Regards,