[Touch-packages] [Bug 1853164] Re: systemd: /etc/dhcp/dhclient-enter-hooks.d/resolved error
@ddstreet
Thank you! It has been a long time coming, so I'm glad to see this
fixed.
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https://bugs.launchpad.net/bugs/1853164
Title:
systemd: /etc/dhcp/dhclient-enter-hooks.d/resolved error
Status in systemd package in Ubuntu:
Fix Released
Status in systemd source package in Focal:
In Progress
Bug description:
[impact]
with systemd-resolved disabled, dhclient doesn't correctly notify
resolvconf about dns server(s)
[test case]
install resolvconf and ifupdown and disable systemd-resolved and
systemd-networkd, use ifupdown to get a dhcp address where the lease
includes a dns nameserver, verify resolvconf is using that dhcp-
provided nameserver
[regression potential]
failure to correctly notify systemd-resolved about new dhclient-
provided nameserver(s)
[scope]
this is needed for f and earlier
in g and later the hook script is moved to the isc-dhcp package, and
edited to correctly check is-enabled systemd-resolved instead of only
checking for the existence of the binary
[original description]
The functionality exists to allow users to revert to the traditional ifupdown
package for network configuration. Alongside this, systemd's often-buggy
resolver can be disabled. However, there's a logic error in the systemd-
supplied /etc/dhcp/dhclient-enter-hooks.d/resolved that prevents the system
from populating /etc/resolv.conf properly when systemd-resolved is disabled.
The issue is here:
if [ -x /lib/systemd/systemd-resolved ] ; then
Instead of checking to see if the systemd-resolved service is enabled or
active, which would be the correct behaviour, this checks for the existence of
a binary, assuming that if it exists it's supposed to be used.
I've not tested this in the absence of resolvconf, but if systemd-resolved
isn't enabled, it's difficult to imagine this code wanting to run. I've tested
this with resolvconf and ifupdown driving dhclient, and it corrects the
behaviour that was broken with the introduction of systemd-resolved.
I'm attaching a patch, and am also including it here for easy access:
*** resolved.broken 2019-11-19 15:01:28.785588838 +
--- resolved2019-11-19 15:08:06.519430073 +
***
*** 14,20
# (D) = master script downs interface
# (-) = master script does nothing with this
! if [ -x /lib/systemd/systemd-resolved ] ; then
# For safety, first undefine the nasty default make_resolv_conf()
make_resolv_conf() { : ; }
case "$reason" in
--- 14,21
# (D) = master script downs interface
# (-) = master script does nothing with this
! systemctl is-active systemd-resolved > /dev/null 2>&1
! if [ $? -eq 0 ]; then
# For safety, first undefine the nasty default make_resolv_conf()
make_resolv_conf() { : ; }
case "$reason" in
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[Touch-packages] [Bug 1853164] Re: systemd: /etc/dhcp/dhclient-enter-hooks.d/resolved error
@thayne-u
They don't care. There is ample reason to implement a fix for this, but
they refuse to do what's best for users because they don't want us to
run any software that doesn't start with "systemd". This is a very
simple bug with a very simple fix, but they refuse to fix their defects.
I've used Ubuntu as my primary OS since Warty Warthog. I've installed
and supported it on countless desktop and server systems. Something
changed in the culture a few years back -- they stopped listening to
their users, around the time that Jono Bacon left. Now the community has
no advocate to influence development. Sadly, that shift in attitude is
reflected with this bug and the one like it that I filed in 2018.
--
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to systemd in Ubuntu.
https://bugs.launchpad.net/bugs/1853164
Title:
systemd: /etc/dhcp/dhclient-enter-hooks.d/resolved error
Status in systemd package in Ubuntu:
Fix Released
Status in systemd source package in Focal:
Triaged
Bug description:
[impact]
with systemd-resolved disabled, dhclient doesn't correctly notify
resolvconf about dns server(s)
[test case]
install resolvconf and ifupdown and disable systemd-resolved and
systemd-networkd, use ifupdown to get a dhcp address where the lease
includes a dns nameserver, verify resolvconf is using that dhcp-
provided nameserver
[regression potential]
failure to correctly notify systemd-resolved about new dhclient-
provided nameserver(s)
[scope]
this is needed for f and earlier
in g and later the hook script is moved to the isc-dhcp package, and
edited to correctly check is-enabled systemd-resolved instead of only
checking for the existence of the binary
[original description]
The functionality exists to allow users to revert to the traditional ifupdown
package for network configuration. Alongside this, systemd's often-buggy
resolver can be disabled. However, there's a logic error in the systemd-
supplied /etc/dhcp/dhclient-enter-hooks.d/resolved that prevents the system
from populating /etc/resolv.conf properly when systemd-resolved is disabled.
The issue is here:
if [ -x /lib/systemd/systemd-resolved ] ; then
Instead of checking to see if the systemd-resolved service is enabled or
active, which would be the correct behaviour, this checks for the existence of
a binary, assuming that if it exists it's supposed to be used.
I've not tested this in the absence of resolvconf, but if systemd-resolved
isn't enabled, it's difficult to imagine this code wanting to run. I've tested
this with resolvconf and ifupdown driving dhclient, and it corrects the
behaviour that was broken with the introduction of systemd-resolved.
I'm attaching a patch, and am also including it here for easy access:
*** resolved.broken 2019-11-19 15:01:28.785588838 +
--- resolved2019-11-19 15:08:06.519430073 +
***
*** 14,20
# (D) = master script downs interface
# (-) = master script does nothing with this
! if [ -x /lib/systemd/systemd-resolved ] ; then
# For safety, first undefine the nasty default make_resolv_conf()
make_resolv_conf() { : ; }
case "$reason" in
--- 14,21
# (D) = master script downs interface
# (-) = master script does nothing with this
! systemctl is-active systemd-resolved > /dev/null 2>&1
! if [ $? -eq 0 ]; then
# For safety, first undefine the nasty default make_resolv_conf()
make_resolv_conf() { : ; }
case "$reason" in
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[Touch-packages] [Bug 1838838] Re: username is not saved in openconnect connection dialog
Here's a workaround from the RedHat folks. https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2105 nmcli con mod VPNNAME vpn.secrets 'form:main:username=USERNAME','save_passwords=yes' ** Bug watch added: gitlab.gnome.org/GNOME/gnome-shell/-/issues #2105 https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2105 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1838838 Title: username is not saved in openconnect connection dialog Status in GNOME Shell: New Status in NetworkManager: New Status in gnome-shell package in Ubuntu: Triaged Status in network-manager package in Ubuntu: Invalid Bug description: Same issue as https://bugs.launchpad.net/ubuntu/+source/network- manager-openconnect/+bug/1609700 This was marked resolved. The report of its reappearance in Ubuntu 19.04 and 19.10 has not been acknowledged. This was working for me in 18.10, but a fresh install of 19.04 and 19.10 show that it is back. The password is saved when the option to save passwords is selected, but the username must be entered manually upon connection. To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-shell/+bug/1838838/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1838838] Re: username is not saved in openconnect connection dialog
Still present after upgrading 19.10 -> 20.04. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1838838 Title: username is not saved in openconnect connection dialog Status in GNOME Shell: New Status in NetworkManager: New Status in gnome-shell package in Ubuntu: Triaged Status in network-manager package in Ubuntu: Invalid Bug description: Same issue as https://bugs.launchpad.net/ubuntu/+source/network- manager-openconnect/+bug/1609700 This was marked resolved. The report of its reappearance in Ubuntu 19.04 and 19.10 has not been acknowledged. This was working for me in 18.10, but a fresh install of 19.04 and 19.10 show that it is back. The password is saved when the option to save passwords is selected, but the username must be entered manually upon connection. To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-shell/+bug/1838838/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1609700] Re: username is not saved in openconnect connection dialog
If you are affected by this bug, please comment on the bug above. It has been open since August 2019. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1609700 Title: username is not saved in openconnect connection dialog Status in network-manager package in Ubuntu: Fix Released Status in network-manager-openconnect package in Ubuntu: Fix Released Status in Fedora: Fix Released Bug description: Happening again on Eoan 19.10! Hi, I clicked on "save passwords" but only the password is filled in automatically when I open the connection dialog. The "Username" field is empty! This happens for a SSLVPN configuration. For another VPN config (don't know which type) everything is ok. openconnect: 7.06-2build2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1609700/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1609700] Re: username is not saved in openconnect connection dialog
Sebastien Bacher - please see https://bugs.launchpad.net/ubuntu/+source /network-manager-openconnect/+bug/1838838 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1609700 Title: username is not saved in openconnect connection dialog Status in network-manager package in Ubuntu: Fix Released Status in network-manager-openconnect package in Ubuntu: Fix Released Status in Fedora: Fix Released Bug description: Happening again on Eoan 19.10! Hi, I clicked on "save passwords" but only the password is filled in automatically when I open the connection dialog. The "Username" field is empty! This happens for a SSLVPN configuration. For another VPN config (don't know which type) everything is ok. openconnect: 7.06-2build2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1609700/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1609700] Re: username is not saved in openconnect connection dialog
This bug was reported to have resurfaced exactly 5 months ago, confirmed by several other community members here. When will the status be updated to reflect this and the bug be put on track for resolution? -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1609700 Title: username is not saved in openconnect connection dialog Status in network-manager package in Ubuntu: Fix Released Status in network-manager-openconnect package in Ubuntu: Fix Released Status in Fedora: Fix Released Bug description: Hi, I clicked on "save passwords" but only the password is filled in automatically when I open the connection dialog. The "Username" field is empty! This happens for a SSLVPN configuration. For another VPN config (don't know which type) everything is ok. openconnect: 7.06-2build2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1609700/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1609700] Re: username is not saved in openconnect connection dialog
Not deprecated unless it happened very quietly. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1609700 Title: username is not saved in openconnect connection dialog Status in network-manager package in Ubuntu: Fix Released Status in network-manager-openconnect package in Ubuntu: Fix Released Status in Fedora: Fix Released Bug description: Hi, I clicked on "save passwords" but only the password is filled in automatically when I open the connection dialog. The "Username" field is empty! This happens for a SSLVPN configuration. For another VPN config (don't know which type) everything is ok. openconnect: 7.06-2build2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1609700/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1745463] Re: Disabling systemd-resolved breaks dhclient resolvconf integration
kalvdans -- they don't get it. Inflexibility for inflexibility's sake is the new goal. My proposed fix is very simple and safe, but because it allows flexibility it's not going to be accepted. Feel free to edit the broken script in the package to enable your setup to work properly. I've done this on several systems I administer and they are running as one would expect now. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1745463 Title: Disabling systemd-resolved breaks dhclient resolvconf integration Status in resolvconf package in Ubuntu: Expired Status in systemd package in Ubuntu: New Bug description: To reproduce, mask resolved: sudo systemctl mask systemd-resolved.service ...then disable network-manager for ifupdown interfaces: $cat /etc/NetworkManager/NetworkManager.conf [main] plugins=ifupdown,keyfile dns=default rc-manager=resolvconf [ifupdown] managed=false [device] wifi.scan-rand-mac-address=no ...and reboot. You'll note that resolvconf integration with dhclient is now broken. Interfaces listed in /etc/network/interfaces or /etc/network/interfaces.d/* will not provide DNS configuration in /etc/resolv.conf and /run/resolvconf/interfaces/. This is because /etc/dhcp/dhclient-enter-hooks.d/resolvconf defines "make_resolv_conf()" as a valid function for the BOUND case, but /etc/dhcp/dhclient-enter-hooks.d/resolved undefines it (who's nasty now, eh?) even though resolved is masked. The file existence check in the beginning of /etc/dhcp/dhclient-enter- hooks.d/resolved should be more thorough, i.e. it should ensure that resolved is enabled, rather than simply look for the existence of /lib/systemd/systemd-resolved. This works for me: -if [ -x /lib/systemd/systemd-resolved ] ; then +if [ -x /lib/systemd/systemd-resolved ] && systemctl -q is-enabled systemd-resolved ; then Arguably, /etc/dhcp/dhclient-enter-hooks.d/resolvconf should implement a similar check, looking for /run/resolvconf/enable-updates as a condition for meddling with DNS settings. If desired, I'll file a separate bug for that package. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/resolvconf/+bug/1745463/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1609700] Re: username is not saved in openconnect connection dialog
This bug resurfaced in Ubuntu 19.04 and persists in 19.10. I installed a fresh copy of both, installed network-manager-openconnect and network- manager-openconnect-gnome, and connected to the company VPN. The password is saved but the username is not saved and it must be manually entered. I didn't see this issue in 18.10. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1609700 Title: username is not saved in openconnect connection dialog Status in network-manager package in Ubuntu: Fix Released Status in network-manager-openconnect package in Ubuntu: Fix Released Status in Fedora: Fix Released Bug description: Hi, I clicked on "save passwords" but only the password is filled in automatically when I open the connection dialog. The "Username" field is empty! This happens for a SSLVPN configuration. For another VPN config (don't know which type) everything is ok. openconnect: 7.06-2build2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1609700/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1745463] Re: Disabling systemd-resolved breaks dhclient resolvconf integration
To distill this down to its most basic form, let's try this. When resolvconf or resolved is installed but disabled, its DHCP hook script still executes and potentially interferes with the proper operation of other hook scripts. My patch ensures that these hook scripts only run when the corresponding service is enabled. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1745463 Title: Disabling systemd-resolved breaks dhclient resolvconf integration Status in resolvconf package in Ubuntu: Incomplete Status in systemd package in Ubuntu: Invalid Bug description: To reproduce, mask resolved: sudo systemctl mask systemd-resolved.service ...then disable network-manager for ifupdown interfaces: $cat /etc/NetworkManager/NetworkManager.conf [main] plugins=ifupdown,keyfile dns=default rc-manager=resolvconf [ifupdown] managed=false [device] wifi.scan-rand-mac-address=no ...and reboot. You'll note that resolvconf integration with dhclient is now broken. Interfaces listed in /etc/network/interfaces or /etc/network/interfaces.d/* will not provide DNS configuration in /etc/resolv.conf and /run/resolvconf/interfaces/. This is because /etc/dhcp/dhclient-enter-hooks.d/resolvconf defines "make_resolv_conf()" as a valid function for the BOUND case, but /etc/dhcp/dhclient-enter-hooks.d/resolved undefines it (who's nasty now, eh?) even though resolved is masked. The file existence check in the beginning of /etc/dhcp/dhclient-enter- hooks.d/resolved should be more thorough, i.e. it should ensure that resolved is enabled, rather than simply look for the existence of /lib/systemd/systemd-resolved. This works for me: -if [ -x /lib/systemd/systemd-resolved ] ; then +if [ -x /lib/systemd/systemd-resolved ] && systemctl -q is-enabled systemd-resolved ; then Arguably, /etc/dhcp/dhclient-enter-hooks.d/resolvconf should implement a similar check, looking for /run/resolvconf/enable-updates as a condition for meddling with DNS settings. If desired, I'll file a separate bug for that package. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/resolvconf/+bug/1745463/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1745463] Re: Disabling systemd-resolved breaks dhclient resolvconf integration
What I'm trying to achieve is this: use resolvconf instead of resolved in Ubuntu 17.10. There is a bug when one tries to do so. This is a fresh install on a laptop using the desktop installation DVD. resolv.conf points to /run/resolvconf/resolv.conf and is managed by resolvconf. I have NetworkManager and resolvconf enabled for interfaces not managed by ifupdown, as shown in NetworkManager.conf in the initial report. I'm using ifupdown for ethernet interfaces, NetworkManager for Wi-Fi. The steps to reproduce are: 1. Install and enable resolvconf 2. Stop and mask resolved 3. Configure NetworkManager for resolvconf and ifupdown 4. Configure an interface in ifupdown for dhcp 5. Connect to the network I agree that overriding make_resolv_conf() is good and necessary. However, the scripts that do so currently do it blindly, even when the service they support is disabled. My patch adds a simple sanity check to ensure that disabled services don't run a script that will break DHCP for enabled services. I've described what was done to my system. If you have further questions, please let me know. My goal is to use resolvconf in the place of resolved. In doing so, I uncovered a bug in the dhcp hook scripts for both resolved and resolvconf and I've provided a working patch for those bugs. The patches have been running successfully on my systems for months. All I ask is for consideration of the patches I've provided, not a criticism of choosing resolvconf over resolved. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1745463 Title: Disabling systemd-resolved breaks dhclient resolvconf integration Status in resolvconf package in Ubuntu: Incomplete Status in systemd package in Ubuntu: Invalid Bug description: To reproduce, mask resolved: sudo systemctl mask systemd-resolved.service ...then disable network-manager for ifupdown interfaces: $cat /etc/NetworkManager/NetworkManager.conf [main] plugins=ifupdown,keyfile dns=default rc-manager=resolvconf [ifupdown] managed=false [device] wifi.scan-rand-mac-address=no ...and reboot. You'll note that resolvconf integration with dhclient is now broken. Interfaces listed in /etc/network/interfaces or /etc/network/interfaces.d/* will not provide DNS configuration in /etc/resolv.conf and /run/resolvconf/interfaces/. This is because /etc/dhcp/dhclient-enter-hooks.d/resolvconf defines "make_resolv_conf()" as a valid function for the BOUND case, but /etc/dhcp/dhclient-enter-hooks.d/resolved undefines it (who's nasty now, eh?) even though resolved is masked. The file existence check in the beginning of /etc/dhcp/dhclient-enter- hooks.d/resolved should be more thorough, i.e. it should ensure that resolved is enabled, rather than simply look for the existence of /lib/systemd/systemd-resolved. This works for me: -if [ -x /lib/systemd/systemd-resolved ] ; then +if [ -x /lib/systemd/systemd-resolved ] && systemctl -q is-enabled systemd-resolved ; then Arguably, /etc/dhcp/dhclient-enter-hooks.d/resolvconf should implement a similar check, looking for /run/resolvconf/enable-updates as a condition for meddling with DNS settings. If desired, I'll file a separate bug for that package. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/resolvconf/+bug/1745463/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1745463] Re: Disabling systemd-resolved breaks dhclient resolvconf integration
> Flexibility for flexibility's sake is not a goal of Ubuntu. H...flexibility for the sake of making a system work seems like a good goal. As a user of Linux for 18 years, and one that has used Ubuntu since its very first release, I can say with confidence that Linux is absolutely about choice and flexibility. Any distro that forgets this fact has limited or short-lived success. > resolved is not configured as a caching nameserver; it is a stub resolver, > configured for the purpose of ensuring a stable DNS endpoint. Perhaps I've conflated resolved with the NetworkManager dnsmasq instance, which is most definitely configured as a caching resolver (and the first iteration of this type of default setup in Ubuntu, also a nightmare for crusty old *nix users). My understanding, based on the documentation, is that resolved acts as a caching resolver. systemd- resolved.server(8) states very clearly: "systemd-resolved is a system service that provides network name resolution to local applications. It implements a caching and validating DNS/DNSSEC stub resolver, as well as an LLMNR resolver and responder." > Enabling a local resolver on servers in addition to desktops (where we have > already enabled dnsmasq for years) has been a common request. Consider this a request to allow an Ubuntu system to work without dnsmasq or any other local caching resolver. I'm sure it's not the first nor the last. There are definitely scenarios where running dsnmasq as a local (caching?) resolver is inappropriate and I'm happy to give a few scenarios, but that's not what _this_ _bug_ is about. This bug is about a defect in the resolvconf and resolved dhclient integration scripts. Philosophical discussion aside, I have reported a valid bug that will definitely affect some number of Ubuntu users. I've also provided a safe, simple, straightforward fix to this bug. It's an improvement to the software. Unless the fix is technically unsound, there is absolutely no reason not to implement it. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1745463 Title: Disabling systemd-resolved breaks dhclient resolvconf integration Status in resolvconf package in Ubuntu: New Status in systemd package in Ubuntu: New Bug description: To reproduce, mask resolved: sudo systemctl mask systemd-resolved.service ...then disable network-manager for ifupdown interfaces: $cat /etc/NetworkManager/NetworkManager.conf [main] plugins=ifupdown,keyfile dns=default rc-manager=resolvconf [ifupdown] managed=false [device] wifi.scan-rand-mac-address=no ...and reboot. You'll note that resolvconf integration with dhclient is now broken. Interfaces listed in /etc/network/interfaces or /etc/network/interfaces.d/* will not provide DNS configuration in /etc/resolv.conf and /run/resolvconf/interfaces/. This is because /etc/dhcp/dhclient-enter-hooks.d/resolvconf defines "make_resolv_conf()" as a valid function for the BOUND case, but /etc/dhcp/dhclient-enter-hooks.d/resolved undefines it (who's nasty now, eh?) even though resolved is masked. The file existence check in the beginning of /etc/dhcp/dhclient-enter- hooks.d/resolved should be more thorough, i.e. it should ensure that resolved is enabled, rather than simply look for the existence of /lib/systemd/systemd-resolved. This works for me: -if [ -x /lib/systemd/systemd-resolved ] ; then +if [ -x /lib/systemd/systemd-resolved ] && systemctl -q is-enabled systemd-resolved ; then Arguably, /etc/dhcp/dhclient-enter-hooks.d/resolvconf should implement a similar check, looking for /run/resolvconf/enable-updates as a condition for meddling with DNS settings. If desired, I'll file a separate bug for that package. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/resolvconf/+bug/1745463/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1745463] Re: Disabling systemd-resolved breaks dhclient resolvconf integration
Is the use of resolvconf and ifupdown without resolved an unsupported configuration in 17.10? Is resolved the only supported DNS configuration management system in Ubuntu 17.10? There are many users who value the control and flexibility of pre-resolved systems and do not want a local caching nameserver. The inadequacy is that systemd breaks resolvconf. I highly doubt that resolvconf will be removed from the archives in 18.04 because resolved is clearly not ready. Look at the number of upgrade issues and bugs filed against it. There are too many systems, mainly servers, that cannot or should not run a nameserver, not even a local one. resolved is not ready to service these systems. Because resolved is packaged with systemd, one cannot choose to run systemd without resolvd. This coupling makes the system less flexible and more fragile. There's another inadequacy for you. Not only have I discovered a bug, I have given the solution to the bug in two packages. My proposed solution does not affect performance nor hinder proper behavior in any way. It simplifies interface configuration. This simple fix should be favored over the removal of software that is stable, functional, and time-tested. Denying the existence of the bug doesn't make it go away. I've reported the defect and provided a simple fix. The Ubuntu team can patch the scripts or leave them broken. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1745463 Title: Disabling systemd-resolved breaks dhclient resolvconf integration Status in resolvconf package in Ubuntu: New Status in systemd package in Ubuntu: New Bug description: To reproduce, mask resolved: sudo systemctl mask systemd-resolved.service ...then disable network-manager for ifupdown interfaces: $cat /etc/NetworkManager/NetworkManager.conf [main] plugins=ifupdown,keyfile dns=default rc-manager=resolvconf [ifupdown] managed=false [device] wifi.scan-rand-mac-address=no ...and reboot. You'll note that resolvconf integration with dhclient is now broken. Interfaces listed in /etc/network/interfaces or /etc/network/interfaces.d/* will not provide DNS configuration in /etc/resolv.conf and /run/resolvconf/interfaces/. This is because /etc/dhcp/dhclient-enter-hooks.d/resolvconf defines "make_resolv_conf()" as a valid function for the BOUND case, but /etc/dhcp/dhclient-enter-hooks.d/resolved undefines it (who's nasty now, eh?) even though resolved is masked. The file existence check in the beginning of /etc/dhcp/dhclient-enter- hooks.d/resolved should be more thorough, i.e. it should ensure that resolved is enabled, rather than simply look for the existence of /lib/systemd/systemd-resolved. This works for me: -if [ -x /lib/systemd/systemd-resolved ] ; then +if [ -x /lib/systemd/systemd-resolved ] && systemctl -q is-enabled systemd-resolved ; then Arguably, /etc/dhcp/dhclient-enter-hooks.d/resolvconf should implement a similar check, looking for /run/resolvconf/enable-updates as a condition for meddling with DNS settings. If desired, I'll file a separate bug for that package. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/resolvconf/+bug/1745463/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1745463] Re: Disabling systemd-resolved breaks dhclient resolvconf integration
The hasty push to replace resolvconf with resolved is having disastrous consequences. User experience and system stability should be valued over forced migration to an unproven, poorly tested, and in many cases unwanted new system. Name resolution is one of the fundamental building blocks of a networked system. I don't understand the eagerness to change it so quickly. It almost seems careless. One might argue that all of systemd has been pushed on the user in a like manner, but I won't go there...at least it's not upstart. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1745463 Title: Disabling systemd-resolved breaks dhclient resolvconf integration Status in resolvconf package in Ubuntu: New Status in systemd package in Ubuntu: New Bug description: To reproduce, mask resolved: sudo systemctl mask systemd-resolved.service ...then disable network-manager for ifupdown interfaces: $cat /etc/NetworkManager/NetworkManager.conf [main] plugins=ifupdown,keyfile dns=default rc-manager=resolvconf [ifupdown] managed=false [device] wifi.scan-rand-mac-address=no ...and reboot. You'll note that resolvconf integration with dhclient is now broken. Interfaces listed in /etc/network/interfaces or /etc/network/interfaces.d/* will not provide DNS configuration in /etc/resolv.conf and /run/resolvconf/interfaces/. This is because /etc/dhcp/dhclient-enter-hooks.d/resolvconf defines "make_resolv_conf()" as a valid function for the BOUND case, but /etc/dhcp/dhclient-enter-hooks.d/resolved undefines it (who's nasty now, eh?) even though resolved is masked. The file existence check in the beginning of /etc/dhcp/dhclient-enter- hooks.d/resolved should be more thorough, i.e. it should ensure that resolved is enabled, rather than simply look for the existence of /lib/systemd/systemd-resolved. This works for me: -if [ -x /lib/systemd/systemd-resolved ] ; then +if [ -x /lib/systemd/systemd-resolved ] && systemctl -q is-enabled systemd-resolved ; then Arguably, /etc/dhcp/dhclient-enter-hooks.d/resolvconf should implement a similar check, looking for /run/resolvconf/enable-updates as a condition for meddling with DNS settings. If desired, I'll file a separate bug for that package. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/resolvconf/+bug/1745463/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1745463] [NEW] Disabling systemd-resolved breaks dhclient resolvconf integration
Public bug reported: To reproduce, mask resolved: sudo systemctl mask systemd-resolved.service ...then disable network-manager for ifupdown interfaces: $cat /etc/NetworkManager/NetworkManager.conf [main] plugins=ifupdown,keyfile dns=default rc-manager=resolvconf [ifupdown] managed=false [device] wifi.scan-rand-mac-address=no ...and reboot. You'll note that resolvconf integration with dhclient is now broken. Interfaces listed in /etc/network/interfaces or /etc/network/interfaces.d/* will not provide DNS configuration in /etc/resolv.conf and /run/resolvconf/interfaces/. This is because /etc/dhcp/dhclient-enter-hooks.d/resolvconf defines "make_resolv_conf()" as a valid function for the BOUND case, but /etc/dhcp/dhclient-enter-hooks.d/resolved undefines it (who's nasty now, eh?) even though resolved is masked. The file existence check in the beginning of /etc/dhcp/dhclient-enter- hooks.d/resolved should be more thorough, i.e. it should ensure that resolved is enabled, rather than simply look for the existence of /lib/systemd/systemd-resolved. This works for me: -if [ -x /lib/systemd/systemd-resolved ] ; then +if [ -x /lib/systemd/systemd-resolved ] && systemctl -q is-enabled systemd-resolved ; then Arguably, /etc/dhcp/dhclient-enter-hooks.d/resolvconf should implement a similar check, looking for /run/resolvconf/enable-updates as a condition for meddling with DNS settings. If desired, I'll file a separate bug for that package. ** Affects: resolvconf (Ubuntu) Importance: Undecided Status: New ** Affects: systemd (Ubuntu) Importance: Undecided Status: New ** Also affects: resolvconf (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1745463 Title: Disabling systemd-resolved breaks dhclient resolvconf integration Status in resolvconf package in Ubuntu: New Status in systemd package in Ubuntu: New Bug description: To reproduce, mask resolved: sudo systemctl mask systemd-resolved.service ...then disable network-manager for ifupdown interfaces: $cat /etc/NetworkManager/NetworkManager.conf [main] plugins=ifupdown,keyfile dns=default rc-manager=resolvconf [ifupdown] managed=false [device] wifi.scan-rand-mac-address=no ...and reboot. You'll note that resolvconf integration with dhclient is now broken. Interfaces listed in /etc/network/interfaces or /etc/network/interfaces.d/* will not provide DNS configuration in /etc/resolv.conf and /run/resolvconf/interfaces/. This is because /etc/dhcp/dhclient-enter-hooks.d/resolvconf defines "make_resolv_conf()" as a valid function for the BOUND case, but /etc/dhcp/dhclient-enter-hooks.d/resolved undefines it (who's nasty now, eh?) even though resolved is masked. The file existence check in the beginning of /etc/dhcp/dhclient-enter- hooks.d/resolved should be more thorough, i.e. it should ensure that resolved is enabled, rather than simply look for the existence of /lib/systemd/systemd-resolved. This works for me: -if [ -x /lib/systemd/systemd-resolved ] ; then +if [ -x /lib/systemd/systemd-resolved ] && systemctl -q is-enabled systemd-resolved ; then Arguably, /etc/dhcp/dhclient-enter-hooks.d/resolvconf should implement a similar check, looking for /run/resolvconf/enable-updates as a condition for meddling with DNS settings. If desired, I'll file a separate bug for that package. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/resolvconf/+bug/1745463/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
