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тАО07-02-2011 01:55 AM
тАО07-02-2011 01:55 AM
Disable IPv6 lookup on HP-UX 11.31
Hi,
because i facing slowness when i run the java application on my system 11.31, and The problem is that the JVMтДв does both an IPv6 and an IPv4 query.
So, I want to know if there is a way to tell the lookup process NOT to check for IPv6 addresses or tell it to prefer IPv4 addresses ? i want to configured to check from /etc/hosts first and then go to DNS with ignore the IP v6 lookup.
i configure the /etc/resolv.conf as below
domain1 mydomain
nameserver IP1
nameserver IP2
nameserver IP3
and the /etc/nsswitch.conf file
passwd: files
group: files
hosts: files dns
ipnodes: files
services: files
networks: files
protocols: files
rpc: files
publickey: files
netgroup: files
automount: files
aliases: files
Thanks
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тАО07-03-2011 12:45 AM
тАО07-03-2011 12:45 AM
Re: Disable IPv6 lookup on HP-UX 11.31
Hi Team,
Is there any update ??
Thanks
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тАО07-03-2011 01:01 AM
тАО07-03-2011 01:01 AM
Re: Disable IPv6 lookup on HP-UX 11.31
Hello,
You may done this by modify/adding [NOTFOUND=return] in /etc/nsswitch.conf
i.e
ipnodes:files [NOTFOUND=return]
Thanks
BR
Naj
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тАО07-03-2011 01:18 AM
тАО07-03-2011 01:18 AM
Re: Disable IPv6 lookup on HP-UX 11.31
only on "hosts"
hosts: files [NOTFOUND=return] dns
or also on "ipnodes"
ipnodes: files [NOTFOUND=return]
Thanks
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тАО07-03-2011 01:25 AM
тАО07-03-2011 01:25 AM
Re: Disable IPv6 lookup on HP-UX 11.31
Hello
only on ipnodes
i.e
ipnodes:files [NOTFOUND=return]
Thanks
BR
Naj
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тАО07-03-2011 01:49 AM
тАО07-03-2011 01:49 AM
Re: Disable IPv6 lookup on HP-UX 11.31
Thanks for your support but i need if there is a way to tell the lookup process on dns NOT to check for IPv6 addresses or tell it to prefer IPv4 addresses.
Thanks
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тАО07-03-2011 02:33 AM
тАО07-03-2011 02:33 AM
Re: Disable IPv6 lookup on HP-UX 11.31
Are you sure, slowness issue caused by Java request traffic?
Why not try to check in Java conf file if there have any setting to update.
Since i do not sure what kind of java application that you are running, so i just assume the conf.
Thanks
BR
Naj
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тАО07-03-2011 03:19 AM
тАО07-03-2011 03:19 AM
Re: Disable IPv6 lookup on HP-UX 11.31
Are you sure, slowness issue caused by Java request traffic ?
The java application is AIX510/520 with JDK 1.4. and please look to this link to take more information about this problem.
http://www-01.ibm.com/support/docview.wss?uid=swg21174765&wv=1
Thanks
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тАО07-03-2011 04:10 AM
тАО07-03-2011 04:10 AM
Re: Disable IPv6 lookup on HP-UX 11.31
Based on the link given it was on AIX machine and i have no idea it's related to HPUX or not.
I have some question here
1, what version of JDK that are you using now?
2. Did you try to disabled ipv6 and see how it's working through ipv4?
Thanks
BR
Naj
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тАО07-03-2011 05:19 AM
тАО07-03-2011 05:19 AM
Re: Disable IPv6 lookup on HP-UX 11.31
my system is HP-UX 11.31 but the WAS and application itтАЩs IBM.
1, what version of JDK that are you using now?
Jdk15 1.5.0.19.00 Java 1.5 JDK
Jdk60 1.6.0.06.00 Java 6.0 JDK
2. Did you try to disabled ipv6 and see how it's working through ipv4?
if you mean disable ipv6 from application side, the application admin he donтАЩt know any way for that.
but if you mean from unix side i trying that by adding this ipnodes: files [NOTFOUND=return] on /etc/nsswitch.conf
Thanks