Taylan Yetkin wrote: > Both ping and traceroute the host from fermi machines returns > success. I need some time to understand the use of tcpdump. > thanks, > Taylan can you post your ifconfig of the listening interface ? a routing table would be nice too: netstat -nr you can of course scramble the IP addresses. > > 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. >>> >>> >> >> > -- Maxim Kovgan, Distributed Systems and Data Mining Laboratory Computer Science, Technion http://dsl.cs.technion.ac.il