Subject: change net.ipv4.ip_local_port_range for specific guest
From: Aleksey Kashin <aleksey.kashin@gmail.com>
Date: Wed, 12 Dec 2012 16:32:59 +0500

Hello,

I need change net.ipv4.ip_local_port_range kernel parameters for
specific guest.

I'm trying following:

1. I created setting file with following content:
radius1:/etc/vservers/net_radius/sysctl/0# cat setting
net.ipv4.ip_local_port_range

2.I created value file with following content:
radius1:/etc/vservers/net_radius/sysctl/0# cat value
3000 65000

3. After  restarting guest I'm seeing that
net.ipv4.ip_local_port_range changed for host machine:
radius1:/etc/vservers/net_radius/sysctl/0# sysctl net.ipv4.ip_local_port_range
net.ipv4.ip_local_port_range = 1024	65000

radius1:/etc/vservers/net_radius/sysctl/0# vserver net_radius restart

radius1:/etc/vservers/net_radius/sysctl/0# sysctl net.ipv4.ip_local_port_range
net.ipv4.ip_local_port_range = 3000	65000

How can I change net.ipv4.ip_local_port_range only for specific guest?

Host OS: Debian Lenny 5, 2.6.26-2 kernel

radius1:/etc/vservers/net_radius/sysctl/0# cat /etc/debian_version
5.0.9
radius1:/etc/vservers/net_radius/sysctl/0# uname -r
2.6.26-2-vserver-amd64

Thank you.

Best regards,
Aleksey Kashin