On Tuesday, August 26, 2003, at 02:17 PM, Rick Warner wrote:
On Tue, 2003-08-26 at 11:05, jurvis lasalle wrote:
Actually rick, I had similar problems with rh9, NIS, and iptables as
posted here
http://info.ccone.at/INFO/Mail-Archives/redhat/Jul-2003/msg00806.html
In broadcast mode i was able to use ypcat to list the nis maps although
i never could authenticate as such a user. The problem was indeed
iptables...
Whether or not this is the problem the poster is facing- well, let's just say we've all heard the complaints about posting sufficient info for proper diagnosis ;-) Hell, we don't even know if the original poster could login from the terminal, it just says he can't do it through ssh...
jurvis
Jurvis,
I followed the link you gave, and traversed the thread, but in the thread there is no hint as to resolution of the problem or anything that points to iptables. Do you care to elucidate, since here you assert that iptables was involved but the reference does not show how you arrived at that conclusion. I am skeptical, since ypcat makes exactly the same system calls that would be made during a call during user authentication; if one succeeds there is no logical reason the other should fail. No additional calls or ports are involved, Please help to educate me/us.
- rick
Sorry, I failed to post the resolution to my problem. Once I turned off iptables, the client bound to the server and all the yptools worked as usual. As I stated in the post at the time, I was (and still am) very perplexed by ypcat working without being able to authenticate as any nis-user. I didn't pursue the matter any further though once I turned off iptables (you know how it is when the resolution to a mystery you never understood in the first place comes along). So sorry- no elucidation here.
Do you really think that such a situation is impossible? The settings were a default red hat 9 install with firewall on medium and holes for dhcp and ssh, and ypbind in broadcast mode (ypcat and ypwhich would not work at all if i specified the server). I don't know much about the underlying system calls you mention, i'm just relaying my own (documented) observations. hope someone can make sense of this...
jurvis
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