* [9fans] dns message
@ 2015-09-26 1:51 arisawa
2015-09-26 15:28 ` erik quanstrom
0 siblings, 1 reply; 4+ messages in thread
From: arisawa @ 2015-09-26 1:51 UTC (permalink / raw)
To: Fans of the OS Plan 9 from Bell Labs
Hello,
running dns with -rs options
I have a lot of messages in /sys/log/dns
term% tail dns
hebe Sep 26 07:17:20 rejecting my ip 192.168.0.6 as local dns server
hebe Sep 26 07:19:34 rejecting my ip 192.168.0.6 as local dns server
hebe Sep 26 07:19:37 rejecting my ip 192.168.0.6 as local dns server
these messages come from:
---- dblookup.c ----
addlocaldnsserver(DN *dp, int class, char *ipaddr, int i)
{
...
/* reject our own ip addresses so we don't query ourselves via udp */
if (myaddr(ipaddr))
return;
myaddr(char *addr)
{
char *line, *sp;
char buf[64];
Biobuf *bp;
if(ipcmp(ipaddr, IPnoaddr) == 0)
if(myipaddr(ipaddr, mntpt) < 0)
return -1;
snprint(buf, sizeof buf, "%I", ipaddr);
if (strcmp(addr, buf) == 0) {
dnslog("rejecting my ip %s as local dns server", addr);
return 1;
}
---- /lib/ndb/local ----
ipnet=local ip=192.168.0.0 ipmask=255.255.255.0
ipgw=192.168.0.1
smtp=ar
ntp=ntp.jst.mfeed.ad.jp ip
auth=hebe
fs=hebe
# the dns values are advertised by DHCP server
# we assume that dhcpd is running on the same ip. look /cfg/common/cpurc
dns=192.168.0.6
yes my dns is running on 192.168.0.6
any wrong setting in /lib/ndb/local?
if not, I think these warning messages are annoying.
Kenji Arisawa
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [9fans] dns message
2015-09-26 1:51 [9fans] dns message arisawa
@ 2015-09-26 15:28 ` erik quanstrom
2015-09-26 22:49 ` arisawa
0 siblings, 1 reply; 4+ messages in thread
From: erik quanstrom @ 2015-09-26 15:28 UTC (permalink / raw)
To: 9fans
> ipnet=local ip=192.168.0.0 ipmask=255.255.255.0
> ipgw=192.168.0.1
> smtp=ar
!> ntp=ntp.jst.mfeed.ad.jp ip
> auth=hebe
> fs=hebe
> # the dns values are advertised by DHCP server
> # we assume that dhcpd is running on the same ip. look /cfg/common/cpurc
> dns=192.168.0.6
this is an indication of an issue.
the ntp line has a trailing ip, which may be confusing the dns client.
- erik
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [9fans] dns message
2015-09-26 15:28 ` erik quanstrom
@ 2015-09-26 22:49 ` arisawa
2015-09-26 23:01 ` erik quanstrom
0 siblings, 1 reply; 4+ messages in thread
From: arisawa @ 2015-09-26 22:49 UTC (permalink / raw)
To: Fans of the OS Plan 9 from Bell Labs
thank you erik.
you are very careful!
I didn’t aware that garbage.
however removing “ip” does not fix my problem.
looking source code I guess: names that are not followed by “=“ are just discarded.
I want to know whether this is only to me.
erik, thanks again!
> 2015/09/27 0:28、erik quanstrom <quanstro@quanstro.net> のメール:
>
>> ipnet=local ip=192.168.0.0 ipmask=255.255.255.0
>> ipgw=192.168.0.1
>> smtp=ar
> !> ntp=ntp.jst.mfeed.ad.jp ip
>> auth=hebe
>> fs=hebe
>> # the dns values are advertised by DHCP server
>> # we assume that dhcpd is running on the same ip. look /cfg/common/cpurc
>> dns=192.168.0.6
>
> this is an indication of an issue.
>
> the ntp line has a trailing ip, which may be confusing the dns client.
>
> - erik
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [9fans] dns message
2015-09-26 22:49 ` arisawa
@ 2015-09-26 23:01 ` erik quanstrom
0 siblings, 0 replies; 4+ messages in thread
From: erik quanstrom @ 2015-09-26 23:01 UTC (permalink / raw)
To: 9fans
On Sat Sep 26 15:52:28 PDT 2015, arisawa@ar.aichi-u.ac.jp wrote:
> thank you erik.
> you are very careful!
> I didn’t aware that garbage.
> however removing “ip” does not fix my problem.
> looking source code I guess: names that are not followed by “=“ are just discarded.
> I want to know whether this is only to me.
i am not currently having this issue. i found an instance of this issue
when i was setting up a machine a while ago, according to /sys/log/dns.
- erik
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2015-09-26 23:01 UTC | newest]
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2015-09-26 1:51 [9fans] dns message arisawa
2015-09-26 15:28 ` erik quanstrom
2015-09-26 22:49 ` arisawa
2015-09-26 23:01 ` erik quanstrom
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