Using XFCE. Seven years ago I resolved this problem in https://forums.opensuse.org/showthread.php/509036-Network-Manager-set-DNS-manually. It doesn’t appear to work with my current version. Could someone please point me to a solution that might exist. Thanks in advance.
This seven year old thread describes several methods and we have no idea what are you using. Start with providing proper description what you did.
This is the file I modified.
cat /etc/sysconfig/network/config
Path: Network/General
Description: Global network configuration
Note:
Most of the options can and should be overridden by per-interface
settings in the ifcfg-* files.
Note: The ISC dhclient started by the NetworkManager is not using any
of these options – NetworkManager is not using any sysconfig settings.
Type: yesno
Default: yes
If ifup should check if an IPv4 address is already in use, set this to yes.
Make sure that packet sockets (CONFIG_PACKET) are supported in the kernel,
since this feature uses arp, which depends on that.
Also be aware that this takes one second per interface; consider that when
setting up a lot of interfaces.
CHECK_DUPLICATE_IP=“yes”
Type: list(auto,yes,no)
Default: auto
If ifup should send a gratuitous ARP to inform the receivers about its
IPv4 addresses. Default is to send gratuitous ARP, when duplicate IPv4
address check is enabled and the check were sucessful.
Make sure that packet sockets (CONFIG_PACKET) are supported in the kernel,
since this feature uses arp, which depends on that.
SEND_GRATUITOUS_ARP=“auto”
Type: yesno
Default: no
Switch on/off debug messages for all network configuration stuff. If set to no
most scripts can enable it locally with “-o debug”.
DEBUG=“no”
Type: integer
Default: 30
Some interfaces need some time to come up or come asynchronously via hotplug.
WAIT_FOR_INTERFACES is a global wait for all mandatory interfaces in
seconds. If empty no wait occurs.
WAIT_FOR_INTERFACES=“30”
Type: yesno
Default: yes
With this variable you can determine if the SuSEfirewall when enabled
should get started when network interfaces are started.
FIREWALL=“yes”
Type: int
Default: 30
When using NetworkManager you may define a timeout to wait for NetworkManager
to connect in NetworkManager-wait-online.service. Other network services
may require the system to have a valid network setup in order to succeed.
This variable has no effect if NetworkManager is disabled.
NM_ONLINE_TIMEOUT=“30”
Type: string
Default: “dns-resolver dns-bind ntp-runtime nis”
This variable defines the start order of netconfig modules installed
in the /etc/netconfig.d and /usr/libexec/netconfig/netconfig.d/ directories.
To disable the execution of a module, don’t remove it from the list
but prepend it with a minus sign, “-ntp-runtime”.
NETCONFIG_MODULES_ORDER=“dns-resolver dns-bind dns-dnsmasq nis ntp-runtime”
Type: yesno
Default: no
Enable netconfig verbose reporting.
NETCONFIG_VERBOSE=“no”
Type: yesno
Default: no
This variable enables netconfig to always force a replace of modified
files and automatically enables the -f | --force-replace parameter.
The purpose is to use it as workaround, when some other tool trashes
the files, e.g. /etc/resolv.conf and you observe messages like this
in your logs on in “netconfig update” output:
ATTENTION: You have modified /etc/resolv.conf. Leaving it untouched.
Please do not forget to also report a bug as we have a system policy
to use netconfig.
NETCONFIG_FORCE_REPLACE=“no”
Type: string
Default: “auto”
Defines the DNS merge policy as documented in netconfig(8) manual page.
Set to “” to disable DNS configuration.
NETCONFIG_DNS_POLICY=“auto”
Type: string(resolver,bind,dnsmasq,)
Default: “resolver”
Defines the name of the DNS forwarder that has to be configured.
Currently implemented are “bind”, “dnsmasq” and “resolver”, that
causes to write the name server IP addresses to /etc/resolv.conf
only (no forwarder). Empty string defaults to “resolver”.#
NETCONFIG_DNS_FORWARDER=“resolver”
Type: yesno
Default: yes
When enabled (default) in forwarder mode (“bind”, “dnsmasq”),
netconfig writes an explicit localhost nameserver address to the
/etc/resolv.conf, followed by the policy resolved name server list
as fallback for the moments, when the local forwarder is stopped.
NETCONFIG_DNS_FORWARDER_FALLBACK=“yes”
Type: string
Default: “”
List of DNS domain names used for host-name lookup.
It is written as search list into the /etc/resolv.conf file.
NETCONFIG_DNS_STATIC_SEARCHLIST=“”
Type: string
Default: “”
List of DNS nameserver IP addresses to use for host-name lookup.
When the NETCONFIG_DNS_FORWARDER variable is set to “resolver”,
the name servers are written directly to /etc/resolv.conf.
Otherwise, the nameserver are written into a forwarder specific
configuration file and the /etc/resolv.conf does not contain any
nameservers causing the glibc to use the name server on the local
machine (the forwarder). See also netconfig(8) manual page.
NETCONFIG_DNS_STATIC_SERVERS=“1.1.1.1, 9.9.9.9, 8.8.8.8”
Type: string
Default: “auto”
Allows to specify a custom DNS service ranking list, that is which
services provide preferred (e.g. vpn services), and which services
fallback settings (e.g. avahi).
Preferred service names have to be prepended with a “+”, fallback
service names with a “-” character. The special default value
“auto” enables the current build-in service ranking list – see the
netconfig(8) manual page – “none” or “” disables the ranking.
NETCONFIG_DNS_RANKING=“auto”
Type: string
Default: “”
Allows to specify options to use when writting the /etc/resolv.conf,
for example:
“debug attempts:1 timeout:10”
See resolv.conf(5) manual page for details.
NETCONFIG_DNS_RESOLVER_OPTIONS=“”
Type: string
Default: “”
Allows to specify a sortlist to use when writting the /etc/resolv.conf,
for example:
130.155.160.0/255.255.240.0 130.155.0.0"
See resolv.conf(5) manual page for details.
NETCONFIG_DNS_RESOLVER_SORTLIST=“”
Type: string
Default: “auto”
Defines the NTP merge policy as documented in netconfig(8) manual page.
Set to “” to disable NTP configuration.
NETCONFIG_NTP_POLICY=“auto”
Type: string
Default: “”
List of NTP servers.
NETCONFIG_NTP_STATIC_SERVERS=“”
Type: string
Default: “auto”
Defines the NIS merge policy as documented in netconfig(8) manual page.
Set to “” to disable NIS configuration.
NETCONFIG_NIS_POLICY=“auto”
Type: string(yes,no,)
Default: “yes”
Defines whether to set the default NIS domain. When enabled and no domain
is provided dynamically or in static settings, /etc/defaultdomain is used.
Valid values are:
- “no” or “” netconfig does not set the domainname
- “yes” netconfig sets the domainname according to the
NIS policy using settings provided by the first
iterface and service that provided it.
- “<interface name>” as yes, but only using settings from interface.
NETCONFIG_NIS_SETDOMAINNAME=“yes”
Type: string
Default: “”
Defines a default NIS domain.
Further domain can be specified by adding a “_<number>” suffix to
the NETCONFIG_NIS_STATIC_DOMAIN and NETCONFIG_NIS_STATIC_SERVERS
variables, e.g.: NETCONFIG_NIS_STATIC_DOMAIN_1=“second”.
NETCONFIG_NIS_STATIC_DOMAIN=“”
Type: string
Default: “”
Defines a list of NIS servers for the default NIS domain or the
domain specified with same “_<number>” suffix.
NETCONFIG_NIS_STATIC_SERVERS=“”
Type: string
Default: ‘’
Set this variable global variable to the ISO / IEC 3166 alpha2
country code specifying the wireless regulatory domain to set.
When not empty, ifup-wireless will be set in the wpa_supplicant
config or via ‘iw reg set’ command.
Note: This option requires a wpa driver supporting it, like
the ‘nl80211’ driver used by default since openSUSE 11.3.
When you notice problems with your hardware, please file a
bug report and set e.g. WIRELESS_WPA_DRIVER=‘wext’ (the old
default driver) in the ifcfg file.
See also “/usr/sbin/wpa_supplicant --help” for the list of
available wpa drivers.
WIRELESS_REGULATORY_DOMAIN=‘’
Type: integer
Default: “”
How log to wait for IPv6 autoconfig in ifup when requested with
the auto6 or +auto6 tag in BOOTPROTO variable.
When unset, a wicked built-in default defer time (10sec) is used.
AUTO6_WAIT_AT_BOOT=“”
Type: list(all,dns,none,“”)
Default: “”
Whether to update system (DNS) settings from IPv6 RA when requested
with the auto6 or +auto6 tag in BOOTPROTO variable.
Defaults to update if autoconf sysctl (address autoconf) is enabled.
AUTO6_UPDATE=“”
Type: list(auto,yes,no)
Default: “auto”
Permits to specify/modify a global ifcfg default. Use with care!
This settings breaks rules for many things, which require carrier
before they can start, e.g. L2 link protocols, link authentication,
ipv4 duplicate address detection, ipv6 duplicate detection will
happen “post-mortem” and maybe even cause to disable ipv6 at all.
See also “man ifcfg” for further information.
LINK_REQUIRED=“auto”
Type: string
Default: “”
Allows to specify a comma separated list of debug facilities used
by wicked. Negated facility names can be prepended by a “-”, e.g.:
“all,-events,-socket,-objectmodel,xpath,xml,dbus”
When set, wicked debug level is automatically enabled.
For a complete list of facility names, see: “wicked --debug help”.
WICKED_DEBUG=“”
Type: list(“”,error,warning,notice,info,debug,debug1,debug2,debug3)
Default: “”
Allows to specify wicked debug level. Default level is “notice”.
WICKED_LOG_LEVEL=“”
I believe the only modification was…
NETCONFIG_DNS_STATIC_SERVERS="1.1.1.1, 9.9.9.9, 8.8.8.8"
Yet another solution wich works since years flawlessly:
I got as far as the instruction…
cat /etc/systemd/network/wireless.network
cat: /etc/systemd/network/wireless.network: No such file or directory
I have now lost my Internet connection totally, and rebooting does not help. What can I do to recover as it’s hard to communicate with no connection?
Plus there is nothing in the /etc/systemd/network directory.
You need to create a file with name ending in ".network’ and the following content:
**6700k:~ #** cat /etc/systemd/network/wireless.network
[Match]
Name=w* # Wireless link
[Network]
DHCP=yes
Domains=fritz.box # Select your domain
**6700k:~ #**
**6700k:~ #** ll /etc/sysconfig/network/config /etc/systemd/network/wireless.network
-rw-r--r-- 1 root root 8160 Sep 24 03:19 /etc/sysconfig/network/config
-rw-r--r-- 1 root root 54 Sep 24 04:03 /etc/systemd/network/wireless.network
**6700k:~ #**
/etc/sysconfig/network/config is complex. /etc/systemd/network/wireless.network is simple and concise.
More complications. I am in rural Greece with a notebook and a poor connection and moving every few days. Your instructions are a little too complicated for me to follow at this time. How do I get back to where I was before I made any changes? Must I re-install using a connection that breaks every few minutes?
i have no idea about changes made.:(Why do you want to reinstall? You need to tell what you did.
https://en.opensuse.org/Network_Management_With_Systemd#Undoing_Changes
I read this as that you think that the cat statement broke your networking. Is that true?
Of course not. I didn’t understand I needed to create a file with that in it.
All is well. I followed your link and I can connect again. I do appreciate your effort and advice and will follow it again now that I understand what I did wrong and have a solution for undoing any mistakes. Thank you for your help.