Le primidi 11 fructidor, an CCXII, Cord Beermann a écrit : > After restarting i see in 'ntpq -p' three times the same server from > that DNS-RR. > > If that should be reliable i'd expect that i'll get three different > Servers from that DNS-RR.
The following trivial patch forces ntpd to add some randomness to its choice
of the remote IP address:
--- ntpd/ntp_config.c.orig 2005-12-22 01:12:06.575611744 +0100
+++ ntpd/ntp_config.c 2005-12-22 01:12:41.252340080 +0100
@@ -2101,6 +2101,17 @@
return 0;
}
+ {
+ struct addrinfo *p;
+ int n = 0;
+ for(p = ptr; p != NULL; p = p->ai_next)
+ n++;
+ if(n > 0) {
+ for(n = rand() % n; n > 0; n--)
+ ptr = ptr->ai_next;
+ }
+
+ }
memcpy(addr, ptr->ai_addr, ptr->ai_addrlen);
#ifdef DEBUG
if (debug > 1)
It is probably not suitable for inclusion as is, because it does not address
the real problem, but it can be useful to someone.
Note: there is a recommanded workaround:
server 0.XX.pool.ntp.org
server 1.XX.pool.ntp.org
server 2.XX.pool.ntp.org
Unfortunately, the three of them happen to be krishna.via.ecp.fr as first
result more often than reasonable. Thus the patch.
signature.asc
Description: Digital signature
