Bug#947688: systemd-networkd: Python socket.getfqdn() not working properly when resolv.conf lacks "domain" key
Dirk Heinrichs
dirk.heinrichs at altum.de
Sun Dec 29 15:00:32 GMT 2019
Michael Biebl:
>> How would I create that (the former)?
> https://www.cyberciti.biz/faq/linux-unix-dhcpdump-monitor-dhcp-traffic/
Ah, OK. That's nice and clean. I guess it needs to be done on the
client, right? So here we go (attached).
> It probably makes sense to involve upstream at this point and file a
> corresponding bug report at
> https://github.com/systemd/systemd/issues
Wanted to do that first, but it stated: "Bother your distribution if
your systemd version is more than 2 behind latest upstream.", so I went
here.
Bye...
Dirk
--
Dirk Heinrichs <dirk.heinrichs at altum.de>
GPG Public Key: D01B367761B0F7CE6E6D81AAD5A2E54246986015
Sichere Internetkommunikation: http://www.retroshare.org
Privacy Handbuch: https://www.privacy-handbuch.de
-------------- next part --------------
# dhcpdump -i host0
TIME: 2019-12-29 15:27:29.476
IP: 0.0.0.0 (8e:5c:b0:99:be:da) > 255.255.255.255 (ff:ff:ff:ff:ff:ff)
OP: 1 (BOOTPREQUEST)
HTYPE: 1 (Ethernet)
HLEN: 6
HOPS: 0
XID: d7fa1228
SECS: 1
FLAGS: 0
CIADDR: 0.0.0.0
YIADDR: 0.0.0.0
SIADDR: 0.0.0.0
GIADDR: 0.0.0.0
CHADDR: 8e:5c:b0:99:be:da:00:00:00:00:00:00:00:00:00:00
SNAME: .
FNAME: .
OPTION: 53 ( 1) DHCP message type 1 (DHCPDISCOVER)
OPTION: 61 ( 19) Client-identifier ff:0b:89:5b:12:00:02:00:00:ab:11:0a:f3:70:6c:f2:6d:80:1c
OPTION: 55 ( 9) Parameter Request List 1 (Subnet mask)
3 (Routers)
12 (Host name)
15 (Domainname)
6 (DNS server)
26 (Interface MTU)
33 (Static route)
121 (Classless Static Route)
42 (NTP servers)
OPTION: 57 ( 2) Maximum DHCP message size 576
OPTION: 12 ( 3) Host name testhost
---------------------------------------------------------------------------
TIME: 2019-12-29 15:27:29.495
IP: 192.168.1.102 (be:fa:b7:4:ca:34) > 192.168.1.7 (8e:5c:b0:99:be:da)
OP: 2 (BOOTPREPLY)
HTYPE: 1 (Ethernet)
HLEN: 6
HOPS: 0
XID: d7fa1228
SECS: 1
FLAGS: 0
CIADDR: 0.0.0.0
YIADDR: 192.168.1.7
SIADDR: 0.0.0.0
GIADDR: 0.0.0.0
CHADDR: 8e:5c:b0:99:be:da:00:00:00:00:00:00:00:00:00:00
SNAME: .
FNAME: .
OPTION: 53 ( 1) DHCP message type 2 (DHCPOFFER)
OPTION: 54 ( 4) Server identifier 192.168.1.102
OPTION: 51 ( 4) IP address leasetime 7200 (2h)
OPTION: 1 ( 4) Subnet mask 255.255.255.0
OPTION: 3 ( 4) Routers 192.168.1.250
OPTION: 15 ( 8) Domainname altum.de
OPTION: 6 ( 8) DNS server 192.168.1.102,192.168.1.103
---------------------------------------------------------------------------
TIME: 2019-12-29 15:27:29.495
IP: 192.168.1.103 (6:e3:54:3f:e6:27) > 192.168.1.7 (8e:5c:b0:99:be:da)
OP: 2 (BOOTPREPLY)
HTYPE: 1 (Ethernet)
HLEN: 6
HOPS: 0
XID: d7fa1228
SECS: 1
FLAGS: 0
CIADDR: 0.0.0.0
YIADDR: 192.168.1.7
SIADDR: 0.0.0.0
GIADDR: 0.0.0.0
CHADDR: 8e:5c:b0:99:be:da:00:00:00:00:00:00:00:00:00:00
SNAME: .
FNAME: .
OPTION: 53 ( 1) DHCP message type 2 (DHCPOFFER)
OPTION: 54 ( 4) Server identifier 192.168.1.103
OPTION: 51 ( 4) IP address leasetime 7200 (2h)
OPTION: 1 ( 4) Subnet mask 255.255.255.0
OPTION: 3 ( 4) Routers 192.168.1.250
OPTION: 15 ( 8) Domainname altum.de
OPTION: 6 ( 8) DNS server 192.168.1.102,192.168.1.103
---------------------------------------------------------------------------
TIME: 2019-12-29 15:27:29.496
IP: 0.0.0.0 (8e:5c:b0:99:be:da) > 255.255.255.255 (ff:ff:ff:ff:ff:ff)
OP: 1 (BOOTPREQUEST)
HTYPE: 1 (Ethernet)
HLEN: 6
HOPS: 0
XID: d7fa1228
SECS: 1
FLAGS: 0
CIADDR: 0.0.0.0
YIADDR: 0.0.0.0
SIADDR: 0.0.0.0
GIADDR: 0.0.0.0
CHADDR: 8e:5c:b0:99:be:da:00:00:00:00:00:00:00:00:00:00
SNAME: .
FNAME: .
OPTION: 53 ( 1) DHCP message type 3 (DHCPREQUEST)
OPTION: 61 ( 19) Client-identifier ff:0b:89:5b:12:00:02:00:00:ab:11:0a:f3:70:6c:f2:6d:80:1c
OPTION: 55 ( 9) Parameter Request List 1 (Subnet mask)
3 (Routers)
12 (Host name)
15 (Domainname)
6 (DNS server)
26 (Interface MTU)
33 (Static route)
121 (Classless Static Route)
42 (NTP servers)
OPTION: 57 ( 2) Maximum DHCP message size 576
OPTION: 54 ( 4) Server identifier 192.168.1.102
OPTION: 50 ( 4) Request IP address 192.168.1.7
OPTION: 12 ( 3) Host name testhost
---------------------------------------------------------------------------
TIME: 2019-12-29 15:27:29.497
IP: 192.168.1.102 (be:fa:b7:4:ca:34) > 192.168.1.7 (8e:5c:b0:99:be:da)
OP: 2 (BOOTPREPLY)
HTYPE: 1 (Ethernet)
HLEN: 6
HOPS: 0
XID: d7fa1228
SECS: 1
FLAGS: 0
CIADDR: 0.0.0.0
YIADDR: 192.168.1.7
SIADDR: 0.0.0.0
GIADDR: 0.0.0.0
CHADDR: 8e:5c:b0:99:be:da:00:00:00:00:00:00:00:00:00:00
SNAME: .
FNAME: .
OPTION: 53 ( 1) DHCP message type 5 (DHCPACK)
OPTION: 54 ( 4) Server identifier 192.168.1.102
OPTION: 51 ( 4) IP address leasetime 7200 (2h)
OPTION: 1 ( 4) Subnet mask 255.255.255.0
OPTION: 3 ( 4) Routers 192.168.1.250
OPTION: 15 ( 8) Domainname altum.de
OPTION: 6 ( 8) DNS server 192.168.1.102,192.168.1.103
---------------------------------------------------------------------------
TIME: 2019-12-29 15:27:29.498
IP: 192.168.1.103 (6:e3:54:3f:e6:27) > 192.168.1.7 (8e:5c:b0:99:be:da)
OP: 2 (BOOTPREPLY)
HTYPE: 1 (Ethernet)
HLEN: 6
HOPS: 0
XID: d7fa1228
SECS: 1
FLAGS: 0
CIADDR: 0.0.0.0
YIADDR: 192.168.1.7
SIADDR: 0.0.0.0
GIADDR: 0.0.0.0
CHADDR: 8e:5c:b0:99:be:da:00:00:00:00:00:00:00:00:00:00
SNAME: .
FNAME: .
OPTION: 53 ( 1) DHCP message type 5 (DHCPACK)
OPTION: 54 ( 4) Server identifier 192.168.1.103
OPTION: 51 ( 4) IP address leasetime 7200 (2h)
OPTION: 1 ( 4) Subnet mask 255.255.255.0
OPTION: 3 ( 4) Routers 192.168.1.250
OPTION: 15 ( 8) Domainname altum.de
OPTION: 6 ( 8) DNS server 192.168.1.102,192.168.1.103
---------------------------------------------------------------------------
-------------- next part --------------
A non-text attachment was scrubbed...
Name: systemd_networkd_debug.log
Type: text/x-log
Size: 9589 bytes
Desc: not available
URL: <http://alioth-lists.debian.net/pipermail/pkg-systemd-maintainers/attachments/20191229/ca1cb493/attachment-0001.bin>
More information about the Pkg-systemd-maintainers
mailing list