On 05/12/2009 11:12:42 AM, Christopher K. Johnson wrote: > Geoffrey Leach wrote: > > Two systems A and B, connected via wireless. A and B both have the > same > > /etc/hosts. Connecting from B to A, "ssh A", works fine. However on > A, > > "ssh B" logs me into A. This used to work fine; the only clue I > have > is > > that ssh did not like the stored RSA key. I let it fix it, and > that's > > when the trouble started. Rebooting A did not fix, nor did removing > the > > saved key and repeating. > > > > Any suggestions? > > > > Thanks. > > > > > > > My best guess: > The stored key issue was symptomatic of the problem resolving host to > ip > address incorrectly. > > There are three things to check: > 1) Logged on at host A, what does 'host B' command return for > information? Is it the correct address for B? If the wrong address > then you need to research whether your dns server or an /etc/hosts > entry > is the cause. Keeping in mind that this all worked previously .... The 'domain' is mtranch.com. Quotes because its not a registered domain Host A is mtranch.mtranch.com, host B is pvr.mtranch.com host B on A: root@mtranch[9]->host pvr pvr.mtranch.com has address 63.251.179.5 Host pvr.mtranch.com not found: 3(NXDOMAIN) Host pvr.mtranch.com not found: 3(NXDOMAIN) I believe that 63.251.179.5 is my ISP's (I'm on satelite with a dynamic IP address) DNS server. root@mtranch[16]->ping pvr PING pvr.mtranch.com (192.168.10.4) 56(84) bytes of data. That's the IP address that's in /etc/hosts. Other direction also works. If I go over to pvr, I can ssh to mtranch. However, if I try to NFS mount directories on mtranch (A) to pvr (B) that fails with "Permission Denied". Again, worked fine yesterday. > 2) Whatever user you do this as on host A, is there a ~/.ssh/config > file? And if so, does it have a stanza that defines how to contact > host > B, but do so with the wrong name or ip address? There's no ~/.ssh/config, and /etc/ssh/ssh_config is the stock version from Fedora 10 > 3) It is also possible, but less likely, that on host A you have dnat > rules in iptables causing the endpoint for that ssh tcp connection to > be > changed to a local host based address. I disabled the firewall (I'm using Firestarter); no change in behavior -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
