Another approach (being you know the future IP address of your server), is to pass the IPaddr via a boot param, or better yet, use a kickstart file to fully automate everything else in the installation.
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/installation_guide/s1-kickstart2-options network --bootproto=static --ip=10.0.2.15 --netmask=255.255.255.0 --gateway=10.0.2.254 --nameserver=10.0.2.1 -- Guy On Wed, Sep 30, 2020 at 2:37 PM Eden Adogla <eden.ado...@gmail.com> wrote: > > 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 <linux...@shimi.net> wrote: >> >> >> On Wed, Sep 30, 2020 at 4:26 PM David Cohen <cdavi...@gmail.com> 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 >> Linux-il@cs.huji.ac.il >> http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il > > _______________________________________________ > Linux-il mailing list > Linux-il@cs.huji.ac.il > http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il -- Guy Gold _______________________________________________ Linux-il mailing list Linux-il@cs.huji.ac.il http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il
