Red Hat ENTERPRISE LINUX 5 - VIRTUALIZATION GUIDE Instalační příručka stáhnout pdf (Strana 149)

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range=10.1.1.10,10.1.1.50,255.255.255.0,12h

Modify dhcp-option to override the default route supplied by dnsmasq, which assumes the

router is the same machine as the one running dnsmasq. An example would be dhcp-

option=3,10.1.1.1

After configuring dnsmasq you can copy the script below as xenDNSmasq to /etc/init.d

If you want to automatically start dnsmasq during system boot, you should register it using

chkconfig(8):

chkconfig --add xenDNSmasq

Enable it for automatic startup:

chkconfig --levels 345 xenDNSmasq on

To configure dnsmasq to restart every time Net workMan ag er detects a change in connectivity

you can use the supplied script nm-dnsmasq.

Copy the nm-dnsmasq script to /etc/NetworkManager/dispatcher.d/

The Net wo rkMan ag er dispatcher will execute the script (in alphabetical order if you have

other scripts in the same directory) every time there is a change in connectivity.

dnsmasq will also detect changes in your /etc/resolv.conf and automatically reload them (if

you start up a VPN session, for example).

Both the nm-dnsmasq and xenDNSmasq script will also set up NAT if you have your guests on a

hidden network to allow them access to the public network.

⁠Chapt er 1 1 . Pre- Red Hat Ent erprise Linux 5.4 Xen n et workin g

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