Re: DNS

[ksemat at eahd.or.ug]

here it is when it has hung.
gettimeofday({961843771, 463517}, NULL) = 0
fcntl(7, F_GETFL)                       = 0x2 (flags O_RDWR)
fcntl(7, F_SETFL, O_RDWR|O_NONBLOCK)    = 0
gettimeofday({961843771, 463708}, NULL) = 0
recvfrom(24, "k\221\1\0\0\1\0\0\0\0\0\0\4wawa\4"..., 513, 0,
{sin_family=AF_INET, sin_port=htons(2625),
sin_addr=inet_addr("216.129.132.208")}, [16]) = 33
gettimeofday({961843771, 463923}, NULL) = 0
sendto(24, "k\221\205\200\0\1\0\1\0\2\0\2\4w"..., 131, 0,
{sin_family=AF_INET, sin_port=htons(2625),
sin_addr=inet_addr("216.129.132.208")}, 16) = 131
gettimeofday({961843771, 464255}, NULL) = 0
select(26, [4 5 6 7 20 21 22 23 24 25], [], [], {233, 535745}) = 5 (in [5
6 7 24 25], left {233, 540000})
gettimeofday({961843771, 464461}, NULL) = 0
readv(7, [{"\0\33", 2}], 1)             = 2
fcntl(7, F_GETFL)                       = 0x802 (flags O_RDWR|O_NONBLOCK)
fcntl(7, F_SETFL, O_RDWR)               = 0
gettimeofday({961843771, 464741}, NULL) = 0
fcntl(7, F_GETFL)                       = 0x2 (flags O_RDWR)
fcntl(7, F_SETFL, O_RDWR|O_NONBLOCK)    = 0
gettimeofday({961843771, 464935}, NULL) = 0
readv(6, [{"\0,", 2}], 1)               = 0
fcntl(6, F_GETFL)                       = 0x802 (flags O_RDWR|O_NONBLOCK)
fcntl(6, F_SETFL, O_RDWR)               = 0
gettimeofday({961843771, 465204}, NULL) = 0
close(6
 
On Sat, 24 Jun 2000, Brian Candler wrote:

> Date: Sat, 24 Jun 2000 11:23:33 +0100
> From: Brian Candler <B.Candler at pobox.com>
> To: ksemat at eahd.or.ug
> Cc: afnog at afnog.org
> Subject: Re: DNS
> 
> On Fri, Jun 23, 2000 at 08:25:21PM +0300, ksemat at eahd.or.ug wrote:
> > I just noticed that my DNS came back to life all by itself now I restarted
> > it about 20 minutes ago and after about 3 minutes it was giving the error
> > I posted I couldn't do an nslookup using it as a default server it would
> > time out on reverse lookups now I've just checked and its working.
> 
> Another suggestion. Wait until bind hangs, and _then_ do
> # strace -p <pid>
> 
> It may tell you what syscall it is hanging on.
> 
> B.
> 
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Sematimba Noah
Network Administrator
Uganda Online
-------------------------------------------------------------------------------
ksemat at eahd.or.ug P.O.Box 1254 Kampala 



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