Hello everybody, finally I figured out. Thank you all for your support.
Working config: /etc/hosts 192.168.64.200 cntemplate dnsmasq.conf dhcp-range=192.168.64.0,static,1d dhcp-host=cntemplate Dhcp request has a hostname field 'cntemplate' Config that did not work: /etc/hosts 192.168.64.200 cntemplate.hpc Dhcp request has a hostname field 'cntemplate' So the problem was that something didn't make the hostname -> fqdn change. Regards, Adam Maulis On 5/19/22 16:46, Maulis Adam via Dnsmasq-discuss wrote: > Hello, > > I like to configure my dhcp server with as little redundacy as > possible. But it looks like the IP address needs to be written both of > /etc/hosts and /etc/dnsmasq.conf > > The client machines are in the /etc/hosts for example: > > 192.168.64.200 cntemplate.hpc > > The non-default dnsmasq config options are: > > no-resolv > server=192.168.5.251 > expand-hosts > domain=hpc > > Case 1: > dhcp-range=192.168.64.0,static > dhcp-host=cntemplate > > Does not work, syslog said: > May 19 15:53:47 gw00 dnsmasq-dhcp[4912]: DHCPDISCOVER(vlan164) > 02:00:00:00:00:65 no address available > > Case 2: > dhcp-range=192.168.64.0,static > dhcp-host=cntemplate,192.168.64.200 > > Working, but needed a duplicate entry both of /etc/hosts and > /etc/dnsmasq.conf > > Case 3: > dhcp-range=192.168.64.100,192.168.64.250 > dhcp-host=cntemplate,192.168.64.200 > > Working, but needed a duplicate entry both of /etc/hosts and > /etc/dnsmasq.conf > > Case 4: > dhcp-range=192.168.64.100,192.168.64.250 > dhcp-host=cntemplate > > Does not work, syslog said: > May 19 16:15:04 gw00 dnsmasq-dhcp[5282]: not giving name > cntemplate.hpc to the DHCP lease of 192.168.64.215 because the name > exists in /etc/hosts with address 192.168.64.200 > > > > > > The client's DHCP requests (tcpdump) > > 02:00:00:00:00:65 > ff:ff:ff:ff:ff:ff, ethertype 802.1Q (0x8100), > length 346: vlan 164, p 0, ethertype IPv4 (0x0800), (tos 0x10, ttl > 128, id 0, offset 0, flags [none], proto UDP (17), length 328) > 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from > 02:00:00:00:00:65, length 300, xid 0x619d4060, Flags [none] > Client-Ethernet-Address 02:00:00:00:00:65 > Vendor-rfc1048 Extensions > Magic Cookie 0x63825363 > DHCP-Message (53), length 1: Discover > Hostname (12), length 10: "cntemplate" > Parameter-Request (55), length 13: > Subnet-Mask (1), BR (28), Time-Zone (2), Default-Gateway > (3) > Domain-Name (15), Domain-Name-Server (6), Unknown (119), > Hostname (12) > Netbios-Name-Server (44), Netbios-Scope (47), MTU (26), > Classless-Static-Route (121) > NTP (42) > > Server's config: > > ip addr show vlan164 > 6: vlan164@ens5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc > noqueue state UP group default qlen 1000 > link/ether 52:54:00:12:34:58 brd ff:ff:ff:ff:ff:ff > inet 192.168.64.254/24 brd 192.168.64.255 scope global vlan164 > valid_lft forever preferred_lft forever > inet6 fe80::5054:ff:fe12:3458/64 scope link > valid_lft forever preferred_lft forever > > cat /etc/debian_version > 10.12 > > uname -a > Linux gw00 4.19.0-11-amd64 #1 SMP Debian 4.19.146-1 (2020-09-17) > x86_64 GNU/Linux > > dpkg -l dnsmasq > ii dnsmasq 2.80-1+deb10u1 all Small caching DNS proxy > and DHCP/TFTP server > > I would be very happy with any advice > > Adam Maulis > > > _______________________________________________ > Dnsmasq-discuss mailing list > Dnsmasq-discuss@lists.thekelleys.org.uk > https://lists.thekelleys.org.uk/cgi-bin/mailman/listinfo/dnsmasq-discuss
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