Date: Fri, 5 Jul 2002 17:16:08 +0900 From: kageyama@roland.co.jp (Morihiro Kageyama) To: FreeBSD-gnats-submit@FreeBSD.org Subject: bin/40215: NIS host search not terminate Message-ID: <020705171608.M0101655@rdspa104.roland.co.jp>
next in thread | raw e-mail | index | archive | help
>Number: 40215
>Category: bin
>Synopsis: NIS host search not terminate
>Confidential: no
>Severity: critical
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Fri Jul 05 01:20:01 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator: kageyama
>Release: FreeBSD 4.6-RELEASE i386
>Organization:
roland DG corp.
>Environment:
FreeBSD r3.rdg.roland.co.jp 4.6-RELEASE FreeBSD 4.6-RELEASE #0: Thu Jun 13 20:01:28 JST 2002 kageyama@roland.co.jp:/usr/obj/usr/src/sys/GENERIC i386
>Description:
%ping aa.
yp_match: clnt_call: RPC: Timed out
>How-To-Repeat:
/etc/host.conf : hosts
bind
nis
/etc/rc.conf: nis_client_enable="YES"
nisdomainname="test-dom"
nis_server_enable="YES"
nis_yppasswdd_enable="YES"
nis_server_flags="" or nis_server_flags="-n"
/var/yp/Makefile.dist
B=-b # not comment out
This is OK.
%ping aa
ping: cannot resolve aa: Unknown host
Not terminate
%ping aa.
yp_match: clnt_call: RPC: Timed out
yp_match: clnt_call: RPC: Timed out
>Fix:
NIS DNS first try, search hostname is "aa.". it's fail.
NIS DNS second try, serach hostname is "aa..subdomain.domain".
^^ two dot include.
This append is line 396 in /usr/src/usr.sbin/ypserv/yp_dnslookup.c
if (hent == NULL) {
if ((h_errno == TRY_AGAIN || h_errno == NO_RECOVERY)
&& q->domain && *q->domain) {
domain append ---> snprintf(retrybuf, sizeof(retrybuf), "%s.%s",
q->name, *q->domain);
if (debug)
yp_error("retrying with: %s", retrybuf);
q->id = yp_send_dns_query(retrybuf, q->type);
q->ttl = DEF_TTL;
q->domain++;
return;
}
then DNS hostname search call "res_mkquery()" is fail.
and set h_error = NO_RECOVERY.
therefore ypserv is host search looping, Not answer YP error.
>Release-Note:
>Audit-Trail:
>Unformatted:
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-bugs" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?020705171608.M0101655>