Another approach would be to update hook into the dhclient.d system like Shimi suggested and then edit the appropriate ifcfg-<interface-name> scripts found at /etc/sysconfig/network-scripts to hardcode the configs and then restart the interface. Such a change will guarantee that the config persists after boot.
Cheers, Eden. On Wed, Sep 30, 2020 at 10:03 AM shimi <[email protected]> wrote: > > On Wed, Sep 30, 2020 at 4:26 PM David Cohen <[email protected]> wrote: > >> Hi, >> I'm looking for an automated way to convert the DHCP address a >> server gets during installation to a static IP configuration. >> I have fixed leases so no future conflict is expected. >> Is there a ready to use cli tool/script for CentOS 7 ? >> >> > I don't know of an existing solution, however, you can probably throw a > bash script to /etc/dhcp/dhclient.d/whatever.sh, and in it take the DHCP > data stored in the variables: > $interface $new_ip_address $new_subnet_mask $new_routers > $new_dhcp_lease_time $new_domain_name_servers > > and use them in nmcli commands to alter the existing connection to a > static one with those settings, e.g. something along the lines of: > > nmcli con mod "$connection" ipv4.addresses > $new_ip_address/$new_subnet_mask(may need to convert to CIDR?) gw4 > $new_routers > nmcli con mod "$connection" ipv4.method manual > nmcli dev disconnect "$connection" > nmcli -w 10 dev connect "$connection" > > HTH, > > -- Shimi > > _______________________________________________ > Linux-il mailing list > [email protected] > http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il >
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