dig segment fault

Tom Greaser tgreaser at hsc.wvu.edu
Mon Feb 18 13:44:10 UTC 2008


We have Redhat ES 5.1 running BIND 9.3.3rc2
I can do 99.98% of all lookups of remote sites 
Im having issues with just two sites that it just can not resolve. 
I get a Segmentation fault at the end when i should be giving me 
back the A record info im requesting. 
dig reymem.com +trace   
.                       376331  IN      NS      k.root-servers.net. 
.                       376331  IN      NS      l.root-servers.net. 
.                       376331  IN      NS      m.root-servers.net. 
.                       376331  IN      NS      a.root-servers.net. 
.                       376331  IN      NS      b.root-servers.net. 
.                       376331  IN      NS      c.root-servers.net. 
.                       376331  IN      NS      d.root-servers.net. 
.                       376331  IN      NS      e.root-servers.net. 
.                       376331  IN      NS      f.root-servers.net. 
.                       376331  IN      NS      g.root-servers.net. 
.                       376331  IN      NS      h.root-servers.net. 
.                       376331  IN      NS      i.root-servers.net. 
.                       376331  IN      NS      j.root-servers.net. 
;; Received 488 bytes from 157.182.94.70#53(157.182.94.70) in 0 ms 

com.                    172800  IN      NS      a.gtld-servers.net. 
com.                    172800  IN      NS      b.gtld-servers.net. 
com.                    172800  IN      NS      c.gtld-servers.net. 
com.                    172800  IN      NS      d.gtld-servers.net. 
com.                    172800  IN      NS      e.gtld-servers.net. 
com.                    172800  IN      NS      f.gtld-servers.net. 
com.                    172800  IN      NS      g.gtld-servers.net. 
com.                    172800  IN      NS      h.gtld-servers.net. 
com.                    172800  IN      NS      i.gtld-servers.net. 
com.                    172800  IN      NS      j.gtld-servers.net. 
com.                    172800  IN      NS      k.gtld-servers.net. 
com.                    172800  IN      NS      l.gtld-servers.net. 
com.                    172800  IN      NS      m.gtld-servers.net. 
;; Received 488 bytes from 193.0.14.129#53(k.root-servers.net) in 94 ms 

reymem.com.             172800  IN      NS      dns1.carebridge.net. 
reymem.com.             172800  IN      NS      dns2.carebridge.net. 
;; Received 112 bytes from 192.5.6.30#53(a.gtld-servers.net) in 37 ms 

Segmentation fault 

Why seg fault ?  How can i tell what caused the seg fault ? I have
logging 
turned up on our named process and i dont see any errors  
severity debug 3; 

I seen dsn1 and 2 are .carebridge.net NS servers. So i did a dig 
to it and got NO Seg Fault.!! 

dig dns1.carebridge.net +trace 

; <<>> DiG 9.3.3rc2 <<>> dns1.carebridge.net +trace 
;; global options:  printcmd 
.                       375958  IN      NS      c.root-servers.net. 
.                       375958  IN      NS      d.root-servers.net. 
.                       375958  IN      NS      e.root-servers.net. 
.                       375958  IN      NS      f.root-servers.net. 
.                       375958  IN      NS      g.root-servers.net. 
.                       375958  IN      NS      h.root-servers.net. 
.                       375958  IN      NS      i.root-servers.net. 
.                       375958  IN      NS      j.root-servers.net. 
.                       375958  IN      NS      k.root-servers.net. 
.                       375958  IN      NS      l.root-servers.net. 
.                       375958  IN      NS      m.root-servers.net. 
.                       375958  IN      NS      a.root-servers.net. 
.                       375958  IN      NS      b.root-servers.net. 
;; Received 488 bytes from 157.182.94.70#53(157.182.94.70) in 0 ms 

net.                    172800  IN      NS      J.GTLD-SERVERS.net. 
net.                    172800  IN      NS      G.GTLD-SERVERS.net. 
net.                    172800  IN      NS      E.GTLD-SERVERS.net. 
net.                    172800  IN      NS      M.GTLD-SERVERS.net. 
net.                    172800  IN      NS      L.GTLD-SERVERS.net. 
net.                    172800  IN      NS      F.GTLD-SERVERS.net. 
net.                    172800  IN      NS      B.GTLD-SERVERS.net. 
net.                    172800  IN      NS      I.GTLD-SERVERS.net. 
net.                    172800  IN      NS      A.GTLD-SERVERS.net. 
net.                    172800  IN      NS      K.GTLD-SERVERS.net. 
net.                    172800  IN      NS      D.GTLD-SERVERS.net. 
net.                    172800  IN      NS      H.GTLD-SERVERS.net. 
net.                    172800  IN      NS      C.GTLD-SERVERS.net. 
;; Received 506 bytes from 192.33.4.12#53(c.root-servers.net) in 29 ms 

dns1.carebridge.net.    172800  IN      A       139.177.224.79 
carebridge.net.         172800  IN      NS      dns1.carebridge.net. 
carebridge.net.         172800  IN      NS      dns2.carebridge.net. 
;; Received 118 bytes from 192.48.79.30#53(J.GTLD-SERVERS.net) in 214
ms 


The other domain other domain i have issues with is smokefreemonc.org 
Anyone know what the next step in looking into these WEIRD issues are ? 
I've even brought up a named box outside our firewall to test and no
luck. get the same thing




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