Both ping and traceroute the host from fermi machines returns success. I need some time to understand the use of tcpdump. thanks, Taylan Maxim kovgan wrote: > John Summerfield wrote: >> Maxim kovgan wrote: >>> John Summerfield wrote: >>>> Taylan Yetkin wrote: >>>>> Hi, >>>>> I installed a cvs repository in my local SL machine and trying to >>>>> connect >>>>> it >>>>> from fermi machines. I get the following error: >>>>> >>>>> [cmswn085> cvs login >>>>> Logging in to >>>>> :pserver:[log in to unmask]:2401/var/lib/ >>>>> cvsroot >>>>> CVS password: >>>>> cvs [login aborted]: connect to >>>>> neutralino.physics.uiowa.edu(128.255.34.167):2401 failed: No route >>>>> to hos >>>>> t >>>> >>>> This is a routing/firewall problem. the cvs command asks for the >>>> password before trying to connect. >>>> >>>> 07:02 [summer@numbat ~]$ cvs -d >>>> :pserver:anoncvs@localhost:2401/var/lib/ login >>>> Logging in to :pserver:anoncvs@localhost:2401/var/lib >>>> CVS password: >>>> cvs [login aborted]: connect to [localhost]:2401 failed: Connection >>>> refused >>>> 07:03 [summer@numbat ~]$ >>> >>> It's most probably tcpwrappers >> >> No. That allows a connexion, then rejects it. You don't get "no >> route" or "refused messages." > > AFAIK tcpwrappers refuse too. > but I somehow missed the no route to.. :) > and you're right! it needs some investigation: > > 1. ping to the host > 2. traceroute to the host. > > if you sporadically get the no route problem, it means you have ... a > routing problem :) > > after you finished up with it, you can continue and trouble shoot. > routing problem can be cause by your university/enterprise firewall too. > > > you can also investigate with tcpdump, which is a great sniffer. > > Good luck! > > > >> >> "reset" is more probable. >> >> > >