Dear All,
I have configured Cluster Suite with 2 servers
Server 1 : 192.168.13.110 IP Address
Server 2 : 192.168.13.179 IP Address
Floating : 192.168.13.83 IP Address (Assumed by currently active server)
I want all snmp packets going out through the active server to be
stamped with floating IP
So i have added a iptables rules as
"iptables -t nat -A POSTROUTING -p udp -s 192.168.13.179 --dport 161
-j SNAT --to-source 192.168.13.83:161
iptables -t nat -A POSTROUTING -p udp -s 192.168.13.110 --dport
161 -j SNAT --to-source 192.168.13.83:161"
I have written a script to continuously poll an agent using snmpgetnext.
This script works for some time and then snmpgetnext fails giving the
following message
"Fri Dec 21 19:10:20 IST 2007 SNMPv2-SMI::enterprises.3769.1.2.3.1.0
= ""
Fri Dec 21 19:10:20 IST 2007 SNMPv2-SMI::enterprises.3769.1.2.3.1.0
= ""
Fri Dec 21 19:10:20 IST 2007 SNMPv2-SMI::enterprises.3769.1.2.3.1.0
= ""
Fri Dec 21 19:10:20 IST 2007 SNMPv2-SMI::enterprises.3769.1.2.3.1.0
= ""
Fri Dec 21 19:10:21 IST 2007 SNMPv2-SMI::enterprises.3769.1.2.3.1.0
= ""
snmpgetnext: Failure in sendto (Operation not permitted)
Fri Dec 21 19:10:21 IST 2007
snmpgetnext: Failure in sendto (Operation not permitted)
Fri Dec 21 19:10:21 IST 2007
snmpgetnext: Failure in sendto (Operation not permitted)
Fri Dec 21 19:10:21 IST 2007
snmpgetnext: Failure in sendto (Operation not permitted)
Fri Dec 21 19:10:21 IST 2007
snmpgetnext: Failure in sendto (Operation not permitted)
Fri Dec 21 19:13:20 IST 2007
snmpgetnext: Failure in sendto (Operation not permitted)
Fri Dec 21 19:13:20 IST 2007
snmpgetnext: Failure in sendto (Operation not permitted)
Fri Dec 21 19:13:21 IST 2007
snmpgetnext: Failure in sendto (Operation not permitted)
Fri Dec 21 19:13:21 IST 2007
snmpgetnext: Failure in sendto (Operation not permitted)
Fri Dec 21 19:13:21 IST 2007
Fri Dec 21 19:13:21 IST 2007 SNMPv2-SMI::enterprises.3769.1.2.3.1.0
= ""
Fri Dec 21 19:13:21 IST 2007 SNMPv2-SMI::enterprises.3769.1.2.3.1.0
= ""
Fri Dec 21 19:13:21 IST 2007 SNMPv2-SMI::enterprises.3769.1.2.3.1.0
= ""
Fri Dec 21 19:13:21 IST 2007 SNMPv2-SMI::enterprises.3769.1.2.3.1.0
= ""
Fri Dec 21 19:13:21 IST 2007 SNMPv2-SMI::enterprises.3769.1.2.3.1.0
= "" "
If i remove the above iptables rule it works continuously and if i
restarted iptables (with rule) then it works for some time
and before the same problem repeats
Can some one throw light on this particular problem
Regards
S.Balaji
P.S: Same thing happen when a rule for rsync, ssh and telnet
i.e they works some time and some times does not
e.g rsync,ssh and telnet iptables SNAT rule
"iptables -t nat -A POSTROUTING -p tcp -s 192.168.13.179
--dport 873 -j SNAT --to-source 192.168.13.83:873
iptables -t nat -A POSTROUTING -p tcp -s 192.168.13.179
--dport 22 -j SNAT --to-source 192.168.13.83:22
iptables -t nat -A POSTROUTING -p tcp -s 192.168.13.179
--dport 23 -j SNAT --to-source 192.168.13.83:23"
*rsync Success* message is
"receiving file list ... done
Log/
Log/20070619.dbg.zip
Log/20070619.log.zip
Log/20070620.dbg.zip
Log/20070620.log.zip
Log/20070621.dbg.zip
Log/20070621.log.zip
sent 190 bytes received 211940 bytes 84852.00 bytes/sec
total size is 211421 speedup is 1.00"
*rsync Failure* message is
"rsync: failed to connect to 192.168.13.100: Connection
timed out (110)
rsync error: error in socket IO (code 10) at
clientserver.c(94) "
*ssh Failure *Message is
"ssh: connect to host 192.168.13.100 port 22: Connection
timed out"
*telnet Failure* Message is
"telnet: connect to address 192.168.13.100: Connection
timed out"
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