Hallo, Simon, Du meintest am 10.02.11:
>>>>>> when I use the ISC DHCP, then I can see the name of the Windows >>>>>> client in "/var/state/dhcp/dhcp.leases". >>>>>> >>>>>> With dnsmasq as DNS and DHCP server I haven't found this feature >>>>>> - is it somewhere hidden? >> [...] >> The client's own name is "KB-PC", dnsmasq reads "Client-A60" from a >> list on the server (which is completely independent from the "real" >> client's name). >> >> I want to see the "real" client's name, it's a better help for >> guessing who's the owner of the machine. >> > So you want the hostname the client sends to the DHCP server, which > is not used by dnsmasq because it's overridden by on-the-server > configuration? That is available: it's set in the environment > variable DNSMASQ_SUPPLIED_HOSTNAME given to the lease-change script. > (All the environment variables are prefixed with DNSMASQ_, it really > is the client's idea of the hostname, not dnsmasq's. > Writing a little script which logs this and the dnsmasq hostname, MAC > address, IP address or anything else useful should give you a file > which can be searched. Sounds simple ... but when can I (or my script) see "DNSMASQ_SUPPLIED_HOSTNAME"? If I've understood managing environment variables right then this variable is only valid within (and under) "dnsmasq". ISC-DHCP tells "client-hostname" in many log lines: Feb 11 11:05:01 Arktur dhcpd: DHCPOFFER on 192.168.0.186 to 00:21:97:10:9c:16 (WPR-PC) via eth0 Feb 11 11:05:04 Arktur dhcpd: DHCPDISCOVER from 00:21:97:10:9c:16 (WPR-PC) via eth0 Feb 11 11:05:04 Arktur dhcpd: DHCPOFFER on 192.168.0.186 to 00:21:97:10:9c:16 (WPR-PC) via eth0 Feb 11 11:05:12 Arktur dhcpd: DHCPDISCOVER from 00:21:97:10:9c:16 (WPR-PC) via eth0 Feb 11 11:05:12 Arktur dhcpd: DHCPOFFER on 192.168.0.186 to 00:21:97:10:9c:16 (WPR-PC) via eth0 Feb 11 11:05:12 Arktur dhcpd: DHCPREQUEST for 192.168.0.186 (192.168.0.1) from 00:21:97:10:9c:16 (WPR-PC) via eth0 Feb 11 11:05:12 Arktur dhcpd: DHCPACK on 192.168.0.186 to 00:21:97:10:9c:16 (WPR-PC) via eth0 ---------------- I'd be pleased if/when "dnsmasq" tells the client's hostname at least in one of its log messages. Viele Gruesse! Helmut
