** Changed in: systemd (Ubuntu)
Status: Incomplete => Invalid
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https://bugs.launchpad.net/bugs/1830955
Title:
Systemd removes OpenVPN IP addresses
Status in systemd package in Ubuntu:
Invalid
Bug description:
This is probably related to, but not a duplicate of, bug 1815101.
Running
root@third:/home/leroy# lsb_release -rd
Description: Ubuntu 18.04.2 LTS
Release: 18.04
Systemd version:
root@third:/home/leroy# apt-cache policy systemd
systemd:
Installed: 237-3ubuntu10.21
Candidate: 237-3ubuntu10.21
Version table:
*** 237-3ubuntu10.21 500
500 http://us.archive.ubuntu.com/ubuntu bionic-updates/main amd64
Packages
100 /var/lib/dpkg/status
237-3ubuntu10.19 500
500 http://security.ubuntu.com/ubuntu bionic-security/main amd64
Packages
237-3ubuntu10 500
500 http://us.archive.ubuntu.com/ubuntu bionic/main amd64 Packages
I expected the OpenVPN IP addresses to remain, instead they were
removed, the physical NIC address remained, process:
Start OpenVPN with systemctl start openvpn@<config-name> (in this
situation, two instances). Result:
root@third:/etc/openvpn# ip addr sh tun0
7: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc fq_codel
state UNKNOWN group default qlen 100
link/none
inet 10.57.3.1 peer 10.57.3.2/32 scope global tun0
valid_lft forever preferred_lft forever
inet6 fe80::f0ea:151b:cb91:5d1b/64 scope link stable-privacy
valid_lft forever preferred_lft forever
root@third:/etc/openvpn# ip addr sh tun1
8: tun1: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc fq_codel
state UNKNOWN group default qlen 100
link/none
inet 10.222.108.234 peer 10.222.108.233/32 scope global tun1
valid_lft forever preferred_lft forever
inet6 fe80::3103:7936:cf19:6237/64 scope link stable-privacy
valid_lft forever preferred_lft forever
Test a configuration (which, incidentally, isn't valid for this
system) with 'netplan try ..' and allow it to revert (which should
have restored the previous configuration), see below:
root@third:/etc/openvpn# cd ~leroy/Downloads
root@third:/home/leroy/Downloads# ll *.yaml
-rw-rw-r-- 1 leroy leroy 555 May 29 10:46 startup.yaml
root@third:/home/leroy/Downloads# netplan --debug try --config-file
~leroy/Downloads/startup.yaml --timeout 15
DEBUG:eno1 not found in {}
DEBUG:Merged config:
network:
bonds: {}
bridges: {}
ethernets:
eno1:
addresses:
- 10.15.0.37/24
dhcp4: false
gateway4: 10.15.0.1
nameservers:
addresses:
- 10.15.0.8
- 10.3.77.11
- 10.45.77.11
- 8.8.8.8
vlans: {}
wifis: {}
DEBUG:New interfaces: {'eno1'}
** (generate:8216): DEBUG: 11:19:39.770: Processing input file
/etc/netplan/01-network-manager-all.yaml..
** (generate:8216): DEBUG: 11:19:39.771: starting new processing pass
** (generate:8216): DEBUG: 11:19:39.771: Processing input file
/etc/netplan/startup.1559146779.768221.yaml..
** (generate:8216): DEBUG: 11:19:39.771: starting new processing pass
** (generate:8216): DEBUG: 11:19:39.771: eno1: setting default backend to 2
** (generate:8216): DEBUG: 11:19:39.771: Generating output files..
** (generate:8216): DEBUG: 11:19:39.771: networkd: definition eno1 is not for
us (backend 2)
DEBUG:no netplan generated networkd configuration exists
DEBUG:netplan generated NM configuration exists, restarting NM
DEBUG:eno1 not found in {}
DEBUG:Merged config:
network:
bonds: {}
bridges: {}
ethernets:
eno1:
addresses:
- 10.15.0.37/24
dhcp4: false
gateway4: 10.15.0.1
nameservers:
addresses:
- 10.15.0.8
- 10.3.77.11
- 10.45.77.11
- 8.8.8.8
vlans: {}
wifis: {}
DEBUG:Skipping non-physical interface: lo
DEBUG:Skipping non-physical interface: enp2s0
DEBUG:Skipping non-physical interface: virbr0
DEBUG:Skipping non-physical interface: virbr0-nic
DEBUG:Skipping non-physical interface: tun0
DEBUG:Skipping non-physical interface: tun1
DEBUG:{}
DEBUG:netplan triggering .link rules for lo
DEBUG:netplan triggering .link rules for enp2s0
DEBUG:netplan triggering .link rules for virbr0
DEBUG:netplan triggering .link rules for virbr0-nic
DEBUG:netplan triggering .link rules for tun0
DEBUG:netplan triggering .link rules for tun1
Do you want to keep these settings?
Press ENTER before the timeout to accept the new configuration
Changes will revert in 1 seconds
Reverting.
DEBUG:no netplan generated networkd configuration exists
DEBUG:netplan generated NM configuration exists, restarting NM
DEBUG:Merged config:
network:
bonds: {}
bridges: {}
ethernets: {}
vlans: {}
wifis: {}
DEBUG:Skipping non-physical interface: lo
DEBUG:Skipping non-physical interface: enp2s0
DEBUG:Skipping non-physical interface: virbr0
DEBUG:Skipping non-physical interface: virbr0-nic
DEBUG:Skipping non-physical interface: tun0
DEBUG:Skipping non-physical interface: tun1
DEBUG:{}
DEBUG:netplan triggering .link rules for lo
DEBUG:netplan triggering .link rules for enp2s0
DEBUG:netplan triggering .link rules for virbr0
DEBUG:netplan triggering .link rules for virbr0-nic
DEBUG:netplan triggering .link rules for tun0
DEBUG:netplan triggering .link rules for tun1
DEBUG:eno1 will not be removed: not a virtual interface
OpenVPN IP addresses (but not the tun interfaces) are removed, see
below:
root@third:/home/leroy/Downloads# ip addr sh tun0
7: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc fq_codel
state UNKNOWN group default qlen 100
link/none
root@third:/home/leroy/Downloads# ip addr sh tun1
8: tun1: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc fq_codel
state UNKNOWN group default qlen 100
link/none
For reference, startup.yaml contents are:
root@third:/home/leroy/Downloads# cat startup.yaml
# This file is generated from information provided by
# the datasource. Changes to it will not persist across an instance.
# To disable cloud-init's network configuration capabilities, write a file
# /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following:
# network: {config: disabled}
network:
ethernets:
eno1:
dhcp4: false
addresses: [10.15.0.37/24]
gateway4: 10.15.0.1
nameservers:
addresses: [10.15.0.8, 10.3.77.11, 10.45.77.11, 8.8.8.8]
version: 2
And the physical NIC information:
root@third:/home/leroy# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group
default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state
UNKNOWN group default qlen 1000
link/ether 00:50:da:22:2a:a2 brd ff:ff:ff:ff:ff:ff
inet 192.168.0.5/24 brd 192.168.0.255 scope global dynamic noprefixroute
enp2s0
valid_lft 2865sec preferred_lft 2865sec
inet6 2605:6001:e6c2:4a00:954c:86e5:62cb:9a98/64 scope global temporary
dynamic
valid_lft 600938sec preferred_lft 82337sec
inet6 2605:6001:e6c2:4a00:faec:e524:9965:c9ef/64 scope global dynamic
mngtmpaddr noprefixroute
valid_lft 604780sec preferred_lft 604780sec
inet6 fe80::ae0e:553e:6c8d:5aa1/64 scope link noprefixroute
valid_lft forever preferred_lft forever
3: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state
DOWN group default qlen 1000
link/ether 52:54:00:6f:a8:2d brd ff:ff:ff:ff:ff:ff
4: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc fq_codel master virbr0
state DOWN group default qlen 1000
link/ether 52:54:00:6f:a8:2d brd ff:ff:ff:ff:ff:ff
7: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc fq_codel
state UNKNOWN group default qlen 100
link/none
8: tun1: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc fq_codel
state UNKNOWN group default qlen 100
link/none
(libvirt/qemu is running but not in use).
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