--no-refresh ignored by zypper

[mrmazda]

On my newest 15.3 installation, DNS is broken for undetermined reason(s). /etc/resolv.conf is the same file I have on most of my installations, where it works as expected.

Consequently, when I want zypper to list some installed package, I must not have zypper wanting to refresh. Thus my syntax is

# zypper --no-refresh se -si somestring

This fails because zypper is obviously insisting on refreshing all autorefresh repos. B.O.O. search summary for dns fail in past 5 months files produces no results. Am I alone, needing to file a bug?

[deano_ferrari]

On my newest 15.3 installation, DNS is broken for undetermined reason(s).

Just a thought around this...have you checked the hosts entry in /etc/nsswitch.conf?

[mrmazda]

Just a thought around this...have you checked the hosts entry in /etc/nsswitch.conf?

I have no idea what that file is about. rpm -qf says it comes from glibc. It's timestamped 2021-02-06 20:37, never touched by me.

# grep hosts /etc/nsswitch.conf
...
hosts:          files dns

What does it mean, or do?

[deano_ferrari]

I have no idea what that file is about. rpm -qf says it comes from glibc. It's timestamped 2021-02-06 20:37, never touched by me.

# grep hosts /etc/nsswitch.conf
...
hosts:          files dns

What does it mean, or do?

That checks out ok. It sets the order for name resolution methods. The 'files' entry means that /etc/hosts is checked first, then configured DNS is consulted as part of the name resolution process.

More info:

man nsswitch.conf

[hcvv]

I have no idea what that file is about. rpm -qf says it comes from glibc. It's timestamped 2021-02-06 20:37, never touched by me.

# grep hosts /etc/nsswitch.conf
...
hosts:          files dns

What does it mean, or do?

man nsswitch.conf

?????

[OrsoBruno]

I don't know if it might be related, but recently a few TW users had similar problems with DNS, see:
https://forums.opensuse.org/showthre...d-after-update
https://forums.opensuse.org/showthre...et-trouble-DNS

[dcurtisfra]

What does it mean, or do?

On this Leap 15.2 system it's –

hosts:  files mdns_minimal [NOTFOUND=return] dns

Where –

The entry '[NOTFOUND=return]' means that the search for an entry should stop if the search in the previous entry turned up nothing. Note that if the search failed due to some other reason (like no NIS server responding) then the search continues with the next entry.

And one other thing –

 > l /etc/resolv.conf
lrwxrwxrwx 1 root root 26 18. Aug 2020  /etc/resolv.conf -> /run/netconfig/resolv.conf
 >

Yes, yes, I know – “netconfig” – Yuck!! Blaahh!! – never use ‘/etc/sysconfig/network/config’ …

• End of the discussion …

[dcurtisfra]

@mrmazda:

Haven't looked myself but, does Leap 15.3 by default enable the “lightweight DHCP and caching DNS server”?

• Check as follows:

 > systemctl list-unit-files | grep -i 'dns'
avahi-dnsconfd.service                                           disabled       
chrony-dnssrv@.service                                           static         
dnsmasq.service                                                  disabled       
chrony-dnssrv@.timer                                             disabled       
 >

Also, in ‘/etc/sysconfig/network/config’ I have the following item:

NETCONFIG_MODULES_ORDER="dns-resolver dns-bind nis ntp-runtime -dns-dnsmasq"

Where did “dns-dnsmasq” come from? –

 > ls /etc/netconfig.d/
dns-bind  dns-dnsmasq  dns-resolver  nis  ntp-runtime
 >

[mrmazda]

I did a fresh minimal 15.3 installation from DVD. Name resolution started out broken, and is still broken.

Bug reported https://bugzilla.opensuse.org/show_bug.cgi?id=1182722
[zypper] the flag --no-refresh is not known; the flag -F is not known

[mrmazda]

 > systemctl list-unit-files | grep -i 'dns'
avahi-dnsconfd.service                                           disabled       
chrony-dnssrv@.service                                           static         
dnsmasq.service                                                  enabled       
chrony-dnssrv@.timer                                             disabled       
 >

I have:

• chrony-dnssrv@.service static -
• chrony-dnssrv@.timer disabled disabled

Also, in ‘/etc/sysconfig/network/config’ I have the following item:

NETCONFIG_MODULES_ORDER="dns-resolver dns-bind nis ntp-runtime -dns-dnsmasq"

Same here.

Where did “dns-dnsmasq” come from? –

 > ls /etc/netconfig.d/
dns-bind  dns-dnsmasq  dns-resolver  nis  ntp-runtime
 >

I have:

# ls -Gg
-rwxr-xr-x 1  7533 Oct  5 02:38 dns-bind
-rwxr-xr-x 1  7418 Oct  5 02:38 dns-dnsmasq
-rwxr-xr-x 1 10104 Oct  5 02:38 dns-resolver
-rwxr-xr-x 1 12384 Oct  5 02:38 nis
-rwxr-xr-x 1  7280 Oct  5 02:38 ntp-runtime

Here's a difference I don't know how to account for. On static IP 15.2:

# systemctl list-unit-files | grep net | sort
network-online.target                   static
network-pre.target                      static
network.service                         enabled
network.target                          static
systemd-networkd-wait-online.service    disabled
systemd-networkd.service                disabled
systemd-networkd.socket                 disabled
xinetd.service                          enabled

On the 15.3 static IP broken DNS installation:

# systemctl list-unit-files | grep net | sort
network-online.target                   static          -
network-pre.target                      static          -
network.service                         alias           -
network.target                          static          -
xinetd.service                          enabled         disabled

Why would network.service be an alias? For what?

Is the latest 15.3 DVD iso broken WRT DNS?