Jiri Slaby wrote:

On 04/02/2018, 08:04 PM, Werner LEMBERG wrote:

...

...

since some time (not sure if it was the switch to Quantum), Firefox does not find websites if it is running before the network was up (e.g. if you have to select a WIFI network).

Same happens partly if you switch the network, e.g. after a S2RAM. If you restart Firefox, all pages a found and displayed.

Looks like an odd (DNS?) caching issue to me. Does anyone know how to fix this, e.g. disable caching?

I can confirm this issue (running version 59.0.2 on openSuSE 42.3); IIRC, the problem is there since about a year.

Does # systemctl stop nscd help?

Was going to suggest a 'systemctl restart nscd'. This did/does help if I have such issues (it's not related to Firefox at all, I use Vivaldi, and have the problem with shell commands, too) -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org

On 2018-04-02, 18:04 GMT, Werner LEMBERG wrote:

Note that Chrome – which I use as my main browser – doesn't have this problem, so it seems indeed specific to Firefox.

Could you please run $ pgrep -f -l dnsmasq $ pgrep -f -l nscd What do you get? Best, Matěj -- https://matej.ceplovi.cz/blog/, Jabber: mcepl@ceplovi.cz GPG Finger: 3C76 A027 CA45 AD70 98B5 BC1D 7920 5802 880B C9D8 They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety. -- Benjamin Franklin, Historical Review of Pennsylvania, 1759. -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org

On 2018-04-02, 21:11 GMT, Werner LEMBERG wrote:

$ pgrep -f -l dnsmasq $ pgrep -f -l nscd 1348 nscd

OK, so that isn't the problem. Then it is just plain nscd brainf*k. Somebody should investigate, but IIRC, nscd was in Fedora declared completely stupid and eradicated as a plague (if the caching nameserver is desired, dnsmasq works just fine). However, I am not a glibc maintainer, so somebody more knowledgeable should fill-in. Best, Matěj -- https://matej.ceplovi.cz/blog/, Jabber: mcepl@ceplovi.cz GPG Finger: 3C76 A027 CA45 AD70 98B5 BC1D 7920 5802 880B C9D8 In those days spirits were brave, the stakes were high, men were real men, women were real women and small furry creatures from Alpha Centauri were real small furry creatures from Alpha Centauri. -- Douglas Adams -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org

I am not sure how relevant this is, but in Windows 10 when I change node on my VPN to different server I experience same problem with Firefox, I can not connect to any pages until I restart it, this problem may not be limited to Linux and may be a problem with Firefox itself, please excuse me if I am incorrect but I thought it worth mentioning. On Mon, Apr 2, 2018 at 8:25 PM, Patrick Shanahan wrote:

* Matěj Cepl [04-02-18 18:20]:

...

On 2018-04-02, 21:11 GMT, Werner LEMBERG wrote:

...

$ pgrep -f -l dnsmasq $ pgrep -f -l nscd 1348 nscd

OK, so that isn't the problem. Then it is just plain nscd brainf*k. Somebody should investigate, but IIRC, nscd was in Fedora declared completely stupid and eradicated as a plague (if the caching nameserver is desired, dnsmasq works just fine). However, I am not a glibc maintainer, so somebody more knowledgeable should fill-in.

I don't believe so. I just changed my nameservers, restarted networkd, and existing firefox instance cannot connect. restarting firefox allowed the connection. and I am on Tw, MozillaFirefox-59.0.2-1.1.x86_64

had not noticed this before, but situation pretty unique.

-- (paka)Patrick Shanahan Plainfield, Indiana, USA @ptilopteri http://en.opensuse.org openSUSE Community Member facebook/ptilopteri Registered Linux User #207535 @ http://linuxcounter.net Photos: http://wahoo.no-ip.org/piwigo paka @ IRCnet freenode -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org

-- Michael Emory Cerquoni -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org

Am 03.04.2018 um 02:28 schrieb Michael Emory Cerquoni:

On Mon, Apr 2, 2018 at 8:25 PM, Patrick Shanahan wrote:

...

* Matěj Cepl [04-02-18 18:20]:

...

On 2018-04-02, 21:11 GMT, Werner LEMBERG wrote:

...

$ pgrep -f -l dnsmasq $ pgrep -f -l nscd 1348 nscd

OK, so that isn't the problem. Then it is just plain nscd brainf*k. Somebody should investigate, but IIRC, nscd was in Fedora declared completely stupid and eradicated as a plague (if the caching nameserver is desired, dnsmasq works just fine). However, I am not a glibc maintainer, so somebody more knowledgeable should fill-in.

I don't believe so. I just changed my nameservers, restarted networkd, and existing firefox instance cannot connect. restarting firefox allowed the connection. and I am on Tw, MozillaFirefox-59.0.2-1.1.x86_64

had not noticed this before, but situation pretty unique.

I am not sure how relevant this is, but in Windows 10 when I change node on my VPN to different server I experience same problem with Firefox, I can not connect to any pages until I restart it, this problem may not be limited to Linux and may be a problem with Firefox itself, please excuse me if I am incorrect but I thought it worth mentioning.

I have been experiencing this issue with Firefox for a couple of years (Tumbleweed, Leap), but not with Win 7. So it seems to be a Linux problem. Maybe Wolfgang Rosenauer (as maintainer) can comment on this. Thx. Regards, Frank -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org

Carlos E. R. wrote:

On 2018-04-03 09:10, Per Jessen wrote:

...

Axel Braun wrote:

...

Hi,

since some time (not sure if it was the switch to Quantum), Firefox does not find websites if it is running before the network was up (e.g. if you have to select a WIFI network). Same happens partly if you switch the network, e.g. after a S2RAM. If you restart Firefox, all pages a found and displayed.

I see this issue too. (laptop with Leap423).

I don't - Leap 15.0. Cabled network today. I'll try WiFi next.

This is how it works here - wake up laptop from sleep, firefox tries to access/refresh the current page, wifi is not yet active (network manager), so dns fails. Firefox seems to cache this negative lookup, I don't know for how long. The only fix I know of is to restart firefox. Owncloud has the same problem, but seem to recover by itself. -- Per Jessen, Zürich (19.0°C) http://www.hostsuisse.com/ - virtual servers, made in Switzerland. -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org

Hi all, this looks like https://bugzilla.mozilla.org/show_bug.cgi?id=939318, see also https://daniel.haxx.se/blog/2014/09/26/changing-networks-with-firefox-runnin... There are a number of semi-duplicates, e.g. https://bugzilla.mozilla.org/show_bug.cgi?id=726211 So, if you kept the same IP address after suspend, there might not have been a problem. Mischa On Wed, Apr 4, 2018 at 1:30 PM, Carlos E. R. wrote:

On 2018-04-03 16:04, Per Jessen wrote:

...

Carlos E. R. wrote:

...

On 2018-04-03 09:10, Per Jessen wrote:

...

Axel Braun wrote:

...

Hi,

since some time (not sure if it was the switch to Quantum), Firefox does not find websites if it is running before the network was up (e.g. if you have to select a WIFI network). Same happens partly if you switch the network, e.g. after a S2RAM. If you restart Firefox, all pages a found and displayed.

I see this issue too. (laptop with Leap423).

I don't - Leap 15.0. Cabled network today. I'll try WiFi next.

This is how it works here -

wake up laptop from sleep, firefox tries to access/refresh the current page, wifi is not yet active (network manager), so dns fails. Firefox seems to cache this negative lookup, I don't know for how long. The only fix I know of is to restart firefox. Owncloud has the same problem, but seem to recover by itself.

Doesn't seem to happen on my laptop test system. Today it is on WiFi; I suspended it (to ram) for the night and a few more times, and no problem. But my WiFi connection goes up very fast, I can't click "reload" on firefox fast enough. I fact, today I saw the "network up" pop up message at the same time I clicked reload page. Before that I have to enter my password on xscreensaver, so I can't go faster than that (and I left firefox focused yesterday night ready to do this test as fast as possible this morning.

This is a fresh install of 15.0 with XFCE, everything default. DHCP. Network manager, WiFi.

-- Cheers/Saludos

Carlos E. R. (testing openSUSE Leap 15.0, at Minas-Anor) -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org

-- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org

Carlos E. R. wrote:

On 04/04/2018 14:31, Mischa Salle wrote:

...

Hi all,

this looks like https://bugzilla.mozilla.org/show_bug.cgi?id=939318, see also

https://daniel.haxx.se/blog/2014/09/26/changing-networks-with-firefox-runnin...

...

There are a number of semi-duplicates, e.g. https://bugzilla.mozilla.org/show_bug.cgi?id=726211 So, if you kept the same IP address after suspend, there might not have been a problem.

Same IP here, certainly.

Ditto, handed out by fixed dhcp allocation. -- Per Jessen, Zürich (9.6°C) http://www.hostsuisse.com/ - dedicated server rental in Switzerland. -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org

On 04/04/2018 13:30, Carlos E. R. wrote:

On 2018-04-03 16:04, Per Jessen wrote:

...

Carlos E. R. wrote:

...

On 2018-04-03 09:10, Per Jessen wrote:

...

Axel Braun wrote:

...

Hi,

since some time (not sure if it was the switch to Quantum), Firefox does not find websites if it is running before the network was up (e.g. if you have to select a WIFI network). Same happens partly if you switch the network, e.g. after a S2RAM. If you restart Firefox, all pages a found and displayed.

I see this issue too.  (laptop with Leap423).

I don't - Leap 15.0. Cabled network today. I'll try WiFi next.

This is how it works here -

wake up laptop from sleep, firefox tries to access/refresh the current page, wifi is not yet active (network manager), so dns fails.  Firefox seems to cache this negative lookup, I don't know for how long.  The only fix I know of is to restart firefox.  Owncloud has the same problem, but seem to recover by itself.

Doesn't seem to happen on my laptop test system. Today it is on WiFi; I suspended it (to ram) for the night and a few more times, and no problem. But my WiFi connection goes up very fast, I can't click "reload" on firefox fast enough. I fact, today I saw the "network up" pop up message at the same time I clicked reload page. Before that I have to enter my password on xscreensaver, so I can't go faster than that (and I left firefox focused yesterday night ready to do this test as fast as possible this morning.

This is a fresh install of 15.0 with XFCE, everything default. DHCP. Network manager, WiFi.

No issue on Windows 10 with FF 59.0.2, either, after a quick suspend. WiFi, same IP, same machine as on Linux test. -- Saludos/Cheers, Carlos E.R. (Minas-Morgul - W10) -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org

On 2018-04-04 20:26, Per Jessen wrote:

Carlos E. R. wrote:

...

On 2018-04-03 16:04, Per Jessen wrote:

...

Carlos E. R. wrote:

...

On 2018-04-03 09:10, Per Jessen wrote:

...

Axel Braun wrote:

...

Hi,

since some time (not sure if it was the switch to Quantum), Firefox does not find websites if it is running before the network was up (e.g. if you have to select a WIFI network). Same happens partly if you switch the network, e.g. after a S2RAM. If you restart Firefox, all pages a found and displayed.

I see this issue too. (laptop with Leap423).

I don't - Leap 15.0. Cabled network today. I'll try WiFi next.

This is how it works here -

wake up laptop from sleep, firefox tries to access/refresh the current page, wifi is not yet active (network manager), so dns fails. Firefox seems to cache this negative lookup, I don't know for how long. The only fix I know of is to restart firefox. Owncloud has the same problem, but seem to recover by itself.

Doesn't seem to happen on my laptop test system. Today it is on WiFi; I suspended it (to ram) for the night and a few more times, and no problem. But my WiFi connection goes up very fast, I can't click "reload" on firefox fast enough.

Here, no need to click reload, just click on a page and it fails. Wifi takes seconds to becomes active after a hibernation.

Here it appears to come up faster that I can get to firefox to click anywhere. -- Cheers/Saludos Carlos E. R. (testing openSUSE Leap 15.0, at Minas-Anor) -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org

On 03.04.2018 10:24, Michal Kubecek wrote:

On Monday, 2 April 2018 19:57 Axel Braun wrote:

...

since some time (not sure if it was the switch to Quantum), Firefox does not find websites if it is running before the network was up (e.g. if you have to select a WIFI network). Same happens partly if you switch the network, e.g. after a S2RAM. If you restart Firefox, all pages a found and displayed.

Looks like an odd (DNS?) caching issue to me. Does anyone know how to fix this, e.g. disable caching?

I had a similar problem some time ago. In my case, the problem was that if I tried to open some page before setting up the networking, Firefox remembered the "network connection unavailable" status somehow and only shutting it down and starting it again helped.

I worked around it by disabling the "captive portal detection" feature. My theory was that it expected me to use NetworkManager or something similar so that it waits for some kind of notification that networking is up again. I may be completely wrong, of course, but it worked for me.

Michal Kubeček

I use NetworkManager and experience the problem neverthelesse on Firefox and Thunderbird. -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org

The next time it happens please check with `getent ahosts ...' whether it is the system resolver or the application that misbehaves. Andreas. -- Andreas Schwab, SUSE Labs, schwab@suse.de GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7 "And now for something completely different." -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org