DNS Unbound many SERVFAIL messages

Networking DNS
1

Is it normal to have DNS SERVFAIL messages occurring regularly throughout the day?

Screenshot:

image
image958×644 25.3 KB

Unbound Log:

12:14:16 unbound: [2187:0] error: SERVFAIL <7.tlu.dl.delivery.mp.microsoft.com. A IN>: request has exceede d the maximum number restarts (eg. indirections) stop at cs11.wpc.v0cdn.net.
12:06:29 unbound: [2187:0] error: SERVFAIL <match.adsrvr.org. TYPE65 IN>: all the configured stub or forwa rd servers failed, at zone .
12:06:29 unbound: [2187:0] error: SERVFAIL <cookie-matching.mediarithmics.com. AAAA IN>: all the configure d stub or forward servers failed, at zone .
12:06:29 unbound: [2187:0] error: SERVFAIL <ssl-market-east.smrtb.com. AAAA IN>: all the configured stub o r forward servers failed, at zone .
12:06:29 unbound: [2187:0] error: SERVFAIL <cdn.districtm.io. TYPE65 IN>: all the configured stub or forwa rd servers failed, at zone .
12:06:29 unbound: [2187:0] error: SERVFAIL <p.rfihub.com. TYPE65 IN>: all the configured stub or forward s ervers failed, at zone .
12:06:29 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. TYPE65 IN>: all the configured stub o r forward servers failed, at zone .
12:06:29 unbound: [2187:0] error: SERVFAIL <pixel.advertising.com. A IN>: all the configured stub or forwa rd servers failed, at zone .
12:06:29 unbound: [2187:0] error: SERVFAIL <dpm.demdex.net. A IN>: all the configured stub or forward serv ers failed, at zone .
12:06:29 unbound: [2187:0] error: SERVFAIL <pixel.servebom.com. AAAA IN>: all the configured stub or forwa rd servers failed, at zone .
12:06:29 unbound: [2187:0] error: SERVFAIL <p.rfihub.com. AAAA IN>: all the configured stub or forward ser vers failed, at zone .
12:06:29 unbound: [2187:0] error: SERVFAIL <pixel.servebom.com. A IN>: all the configured stub or forward servers failed, at zone .
12:06:29 unbound: [2187:0] error: SERVFAIL <cookie-matching.mediarithmics.com. A IN>: all the configured s tub or forward servers failed, at zone .
12:06:29 unbound: [2187:0] error: SERVFAIL <dpm.demdex.net. TYPE65 IN>: all the configured stub or forward servers failed, at zone .
12:06:29 unbound: [2187:0] error: SERVFAIL <match.bnmla.com. A IN>: all the configured stub or forward ser vers failed, at zone .
12:06:29 unbound: [2187:0] error: SERVFAIL <p.rfihub.com. A IN>: all the configured stub or forward server s failed, at zone .
12:06:29 unbound: [2187:0] error: SERVFAIL <nep.advangelists.com. AAAA IN>: all the configured stub or for ward servers failed, at zone .
12:06:29 unbound: [2187:0] error: SERVFAIL <uipglob.semasio.net. A IN>: all the configured stub or forward servers failed, at zone .
12:06:29 unbound: [2187:0] error: SERVFAIL <tags.bluekai.com. A IN>: all the configured stub or forward se rvers failed, at zone .
12:06:29 unbound: [2187:0] error: SERVFAIL <px.moatads.com. A IN>: all the configured stub or forward serv ers failed, at zone .
12:06:29 unbound: [2187:0] error: SERVFAIL <g2.gumgum.com. TYPE65 IN>: all the configured stub or forward servers failed, at zone .
12:06:29 unbound: [2187:0] error: SERVFAIL <match.adsrvr.org. A IN>: all the configured stub or forward se rvers failed, at zone .
12:06:29 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. A IN>: all the configured stub or for ward servers failed, at zone .
12:06:29 unbound: [2187:0] error: SERVFAIL <cdn.districtm.io. A IN>: all the configured stub or forward se rvers failed, at zone .
12:06:29 unbound: [2187:0] error: SERVFAIL <g2.gumgum.com. A IN>: all the configured stub or forward serve rs failed, at zone .
12:06:23 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. AAAA IN>: all the configured stub or forward servers failed, at zone .
12:06:15 unbound: [2187:0] error: SERVFAIL <ps.eyeota.net. TYPE65 IN>: all the configured stub or forward servers failed, at zone .
12:06:15 unbound: [2187:0] error: SERVFAIL <s.cpx.to. TYPE65 IN>: all the configured stub or forward serve rs failed, at zone .
12:06:15 unbound: [2187:0] error: SERVFAIL <p.cpx.to. A IN>: all the configured stub or forward servers fa iled, at zone .
12:06:15 unbound: [2187:0] error: SERVFAIL <s.cpx.to. AAAA IN>: all the configured stub or forward servers failed, at zone .
12:06:15 unbound: [2187:0] error: SERVFAIL <f31b80f8f012a06b49ac333e244e3573.safeframe.googlesyndication.c om. A IN>: all the configured stub or forward servers failed, at zone .
12:06:15 unbound: [2187:0] error: SERVFAIL <p.cpx.to. TYPE65 IN>: all the configured stub or forward serve rs failed, at zone .
12:06:15 unbound: [2187:0] error: SERVFAIL <p.cpx.to. AAAA IN>: all the configured stub or forward servers failed, at zone .
12:06:15 unbound: [2187:0] error: SERVFAIL <futureplc-com.videoplayerhub.com. TYPE65 IN>: all the configur ed stub or forward servers failed, at zone .
12:06:15 unbound: [2187:0] error: SERVFAIL <s.cpx.to. A IN>: all the configured stub or forward servers fa iled, at zone .
12:05:58 unbound: [2187:0] error: SERVFAIL <pixel.advertising.com. AAAA IN>: all the configured stub or fo rward servers failed, at zone .
12:05:58 unbound: [2187:0] error: SERVFAIL <g2.gumgum.com. AAAA IN>: all the configured stub or forward se rvers failed, at zone .
12:05:58 unbound: [2187:0] error: SERVFAIL <ssl-market-east.smrtb.com. TYPE65 IN>: all the configured stub or forward servers failed, at zone .
12:05:58 unbound: [2187:0] error: SERVFAIL <pixel.advertising.com. TYPE65 IN>: all the configured stub or forward servers failed, at zone .
12:05:58 unbound: [2187:0] error: SERVFAIL <guce.yahoo.com. A IN>: all the configured stub or forward serv ers failed, at zone .
12:05:58 unbound: [2187:0] error: SERVFAIL <cm.g.doubleclick.net. AAAA IN>: all the configured stub or for ward servers failed, at zone .
12:05:41 unbound: [2187:0] error: SERVFAIL <7.tlu.dl.delivery.mp.microsoft.com. A IN>: request has exceede d the maximum number restarts (eg. indirections) stop at cs11.wpc.v0cdn.net.
12:04:26 unbound: [2187:0] error: SERVFAIL <7.tlu.dl.delivery.mp.microsoft.com. A IN>: request has exceede d the maximum number restarts (eg. indirections) stop at cs11.wpc.v0cdn.net.
12:03:22 unbound: [2187:0] error: SERVFAIL <7.tlu.dl.delivery.mp.microsoft.com. A IN>: request has exceede d the maximum number restarts (eg. indirections) stop at cs11.wpc.v0cdn.net.
12:02:00 unbound: [2187:0] error: SERVFAIL <7.tlu.dl.delivery.mp.microsoft.com. A IN>: request has exceede d the maximum number restarts (eg. indirections) stop at cs11.wpc.v0cdn.net.
12:01:49 unbound: [2187:0] error: SERVFAIL <7.tlu.dl.delivery.mp.microsoft.com. A IN>: request has exceede d the maximum number restarts (eg. indirections) stop at cs11.wpc.v0cdn.net.
12:01:41 unbound: [2187:0] error: SERVFAIL <7.tlu.dl.delivery.mp.microsoft.com. A IN>: request has exceede d the maximum number restarts (eg. indirections) stop at cs11.wpc.v0cdn.net.
11:53:00 unbound: [2187:0] error: SERVFAIL <support.mozilla.org. A IN>: all the configured stub or forward servers failed, at zone .
11:45:11 unbound: [2187:0] error: SERVFAIL <7.tlu.dl.delivery.mp.microsoft.com. A IN>: request has exceede d the maximum number restarts (eg. indirections) stop at cs11.wpc.v0cdn.net.
11:45:00 unbound: [2187:0] error: SERVFAIL <7.tlu.dl.delivery.mp.microsoft.com. A IN>: request has exceede d the maximum number restarts (eg. indirections) stop at cs11.wpc.v0cdn.net.
11:44:18 unbound: [2187:0] error: SERVFAIL <7.tlu.dl.delivery.mp.microsoft.com. A IN>: request has exceede d the maximum number restarts (eg. indirections) stop at cs11.wpc.v0cdn.net.
11:43:43 unbound: [2187:0] error: SERVFAIL <7.tlu.dl.delivery.mp.microsoft.com. A IN>: request has exceede d the maximum number restarts (eg. indirections) stop at cs11.wpc.v0cdn.net.
11:43:20 unbound: [2187:0] error: SERVFAIL <7.tlu.dl.delivery.mp.microsoft.com. A IN>: request has exceede d the maximum number restarts (eg. indirections) stop at cs11.wpc.v0cdn.net.
11:43:02 unbound: [2187:0] error: SERVFAIL <7.tlu.dl.delivery.mp.microsoft.com. A IN>: request has exceede d the maximum number restarts (eg. indirections) stop at cs11.wpc.v0cdn.net.
11:42:22 unbound: [2187:0] error: SERVFAIL <7.tlu.dl.delivery.mp.microsoft.com. A IN>: request has exceede d the maximum number restarts (eg. indirections) stop at cs11.wpc.v0cdn.net.
11:42:17 unbound: [2187:0] error: SERVFAIL <7.tlu.dl.delivery.mp.microsoft.com. A IN>: request has exceede d the maximum number restarts (eg. indirections) stop at cs11.wpc.v0cdn.net.
11:36:20 unbound: [2187:0] error: SERVFAIL <pixel.advertising.com. A IN>: all the configured stub or forwa rd servers failed, at zone .
11:36:15 unbound: [2187:0] error: SERVFAIL <c2shb.ssp.yahoo.com. A IN>: all the configured stub or forward servers failed, at zone .
11:35:04 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. A IN>: all the configured stub or for ward servers failed, at zone .
11:33:08 unbound: [2187:0] error: SERVFAIL <7.tlu.dl.delivery.mp.microsoft.com. A IN>: request has exceede d the maximum number restarts (eg. indirections) stop at cs11.wpc.v0cdn.net.
11:32:43 unbound: [2187:0] error: SERVFAIL <7.tlu.dl.delivery.mp.microsoft.com. A IN>: request has exceede d the maximum number restarts (eg. indirections) stop at cs11.wpc.v0cdn.net.
11:32:27 unbound: [2187:0] error: SERVFAIL <7.tlu.dl.delivery.mp.microsoft.com. A IN>: request has exceede d the maximum number restarts (eg. indirections) stop at cs11.wpc.v0cdn.net.
11:31:53 unbound: [2187:0] error: SERVFAIL <7.tlu.dl.delivery.mp.microsoft.com. A IN>: request has exceede d the maximum number restarts (eg. indirections) stop at cs11.wpc.v0cdn.net.
11:31:46 unbound: [2187:0] error: SERVFAIL <7.tlu.dl.delivery.mp.microsoft.com. A IN>: request has exceede d the maximum number restarts (eg. indirections) stop at cs11.wpc.v0cdn.net.
11:31:45 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. A IN>: all the configured stub or for ward servers failed, at zone .
11:31:11 unbound: [2187:0] error: SERVFAIL <7.tlu.dl.delivery.mp.microsoft.com. A IN>: request has exceede d the maximum number restarts (eg. indirections) stop at cs11.wpc.v0cdn.net.
11:30:47 unbound: [2187:0] error: SERVFAIL <7.tlu.dl.delivery.mp.microsoft.com. A IN>: request has exceede d the maximum number restarts (eg. indirections) stop at cs11.wpc.v0cdn.net.
11:30:30 unbound: [2187:0] error: SERVFAIL <7.tlu.dl.delivery.mp.microsoft.com. A IN>: request has exceede d the maximum number restarts (eg. indirections) stop at cs11.wpc.v0cdn.net.
11:30:17 unbound: [2187:0] error: SERVFAIL <7.tlu.dl.delivery.mp.microsoft.com. A IN>: request has exceede d the maximum number restarts (eg. indirections) stop at cs11.wpc.v0cdn.net.
11:29:54 unbound: [2187:0] error: SERVFAIL <7.tlu.dl.delivery.mp.microsoft.com. A IN>: request has exceede d the maximum number restarts (eg. indirections) stop at cs11.wpc.v0cdn.net.
11:28:30 unbound: [2187:0] error: SERVFAIL <pixel.advertising.com. A IN>: all the configured stub or forwa rd servers failed, at zone .
11:28:29 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. A IN>: all the configured stub or for ward servers failed, at zone .
11:27:03 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. A IN>: all the configured stub or for ward servers failed, at zone .
11:26:25 unbound: [2187:0] error: SERVFAIL <c2shb.ssp.yahoo.com. A IN>: all the configured stub or forward servers failed, at zone .
11:24:55 unbound: [2187:0] error: SERVFAIL <pixel.advertising.com. A IN>: all the configured stub or forwa rd servers failed, at zone .
11:24:46 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. A IN>: all the configured stub or for ward servers failed, at zone .
11:24:25 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. A IN>: all the configured stub or for ward servers failed, at zone .
11:22:58 unbound: [2187:0] error: SERVFAIL <support.mozilla.org. A IN>: all the configured stub or forward servers failed, at zone .
11:22:45 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. A IN>: all the configured stub or for ward servers failed, at zone .
11:22:45 unbound: [2187:0] error: SERVFAIL <pixel.placed.com. A IN>: all the configured stub or forward se rvers failed, at zone .
11:22:45 unbound: [2187:0] error: SERVFAIL <ssum-sec.casalemedia.com. A IN>: all the configured stub or fo rward servers failed, at zone .
11:22:45 unbound: [2187:0] error: SERVFAIL <pixel.advertising.com. A IN>: all the configured stub or forwa rd servers failed, at zone .
11:22:02 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. A IN>: all the configured stub or for ward servers failed, at zone .
11:22:02 unbound: [2187:0] error: SERVFAIL <pixel.advertising.com. A IN>: all the configured stub or forwa rd servers failed, at zone .
11:21:54 unbound: [2187:0] error: SERVFAIL <c2shb.ssp.yahoo.com. A IN>: all the configured stub or forward servers failed, at zone .
11:18:02 unbound: [2187:0] error: SERVFAIL <pixel.placed.com. A IN>: all the configured stub or forward se rvers failed, at zone .
11:17:30 unbound: [2187:0] error: SERVFAIL <pixel.advertising.com. A IN>: all the configured stub or forwa rd servers failed, at zone .
11:16:32 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. A IN>: all the configured stub or for ward servers failed, at zone .
11:15:45 unbound: [2187:0] error: SERVFAIL <support.mozilla.org. A IN>: all the configured stub or forward servers failed, at zone .
11:14:46 unbound: [2187:0] error: SERVFAIL <pixel.advertising.com. A IN>: all the configured stub or forwa rd servers failed, at zone .
11:14:45 unbound: [2187:0] error: SERVFAIL <image6.pubmatic.com. A IN>: all the configured stub or forward servers failed, at zone .
11:04:52 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. A IN>: all the configured stub or for ward servers failed, at zone .
11:03:54 unbound: [2187:0] error: SERVFAIL <c2shb.ssp.yahoo.com. A IN>: all the configured stub or forward servers failed, at zone .
11:03:54 unbound: [2187:0] error: SERVFAIL <statsapi.mlb.com. A IN>: all the configured stub or forward se rvers failed, at zone .
11:03:54 unbound: [2187:0] error: SERVFAIL <a.teads.tv. A IN>: all the configured stub or forward servers failed, at zone .
11:03:45 unbound: [2187:0] error: SERVFAIL <pixel.advertising.com. A IN>: all the configured stub or forwa rd servers failed, at zone .
11:02:45 unbound: [2187:0] error: SERVFAIL <support.mozilla.org. A IN>: all the configured stub or forward servers failed, at zone .
10:59:43 unbound: [2187:0] error: SERVFAIL <c2shb.ssp.yahoo.com. A IN>: all the configured stub or forward servers failed, at zone .
10:59:22 unbound: [2187:0] error: SERVFAIL <ssbsync.smartadserver.com. A IN>: all the configured stub or f orward servers failed, at zone .
10:59:22 unbound: [2187:0] error: SERVFAIL <pixel.rubiconproject.com. A IN>: all the configured stub or fo rward servers failed, at zone .
10:59:22 unbound: [2187:0] error: SERVFAIL <prebid-match.dotomi.com. A IN>: all the configured stub or for ward servers failed, at zone .
10:59:22 unbound: [2187:0] error: SERVFAIL <ocsp.godaddy.com. A IN>: all the configured stub or forward se rvers failed, at zone .
10:56:26 unbound: [2187:0] error: SERVFAIL <pixel.advertising.com. A IN>: all the configured stub or forwa rd servers failed, at zone .
10:56:07 unbound: [2187:0] error: SERVFAIL <web.ssp.yahoo.com. A IN>: all the configured stub or forward s ervers failed, at zone .
10:52:42 unbound: [2187:0] error: SERVFAIL <pixel.advertising.com. A IN>: all the configured stub or forwa rd servers failed, at zone .
10:46:03 unbound: [2187:0] error: SERVFAIL <pixel.advertising.com. A IN>: all the configured stub or forwa rd servers failed, at zone .
10:45:14 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. A IN>: all the configured stub or for ward servers failed, at zone .
10:42:11 unbound: [2187:0] error: SERVFAIL <pixel.advertising.com. A IN>: all the configured stub or forwa rd servers failed, at zone .
10:40:48 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. A IN>: all the configured stub or for ward servers failed, at zone .
10:39:11 unbound: [2187:0] error: SERVFAIL <support.mozilla.org. A IN>: all the configured stub or forward servers failed, at zone .
10:35:23 unbound: [2187:0] error: SERVFAIL <ctldl.windowsupdate.com. A IN>: request has exceeded the maxim um number restarts (eg. indirections) stop at edgehop.audownload.windowsupdate.n satc.net.
10:35:15 unbound: [2187:0] error: SERVFAIL <ctldl.windowsupdate.com. A IN>: request has exceeded the maxim um number restarts (eg. indirections) stop at edgehop.audownload.windowsupdate.n satc.net.
10:35:11 unbound: [2187:0] error: SERVFAIL <ctldl.windowsupdate.com. A IN>: request has exceeded the maxim um number restarts (eg. indirections) stop at edgehop.audownload.windowsupdate.n satc.net.
10:34:23 unbound: [2187:0] error: SERVFAIL <ctldl.windowsupdate.com. A IN>: request has exceeded the maxim um number restarts (eg. indirections) stop at wu.azureedge.net.
10:33:48 unbound: [2187:0] error: SERVFAIL <us.tb.wal.co. A IN>: all the configured stub or forward server s failed, at zone .
10:33:27 unbound: [2187:0] error: SERVFAIL <us-dyn.tb.wal.co. A IN>: all the configured stub or forward se rvers failed, at zone .
10:32:27 unbound: [2187:0] error: SERVFAIL <ctldl.windowsupdate.com. A IN>: request has exceeded the maxim um number restarts (eg. indirections) stop at wu.ec.azureedge.net.
10:31:20 unbound: [2187:0] error: SERVFAIL <pixel.advertising.com. A IN>: all the configured stub or forwa rd servers failed, at zone .
10:30:54 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. A IN>: all the configured stub or for ward servers failed, at zone .
10:28:47 unbound: [2187:0] error: SERVFAIL <7.tlu.dl.delivery.mp.microsoft.com. A IN>: request has exceede d the maximum number restarts (eg. indirections) stop at cs11.wpc.v0cdn.net.
10:28:29 unbound: [2187:0] error: SERVFAIL <7.tlu.dl.delivery.mp.microsoft.com. A IN>: request has exceede d the maximum number restarts (eg. indirections) stop at cs11.wpc.v0cdn.net.
10:28:18 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. A IN>: all the configured stub or for ward servers failed, at zone .
10:28:04 unbound: [2187:0] error: SERVFAIL <7.tlu.dl.delivery.mp.microsoft.com. A IN>: request has exceede d the maximum number restarts (eg. indirections) stop at cs11.wpc.v0cdn.net.
10:27:18 unbound: [2187:0] error: SERVFAIL <pixel.advertising.com. A IN>: all the configured stub or forwa rd servers failed, at zone .
10:24:56 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. A IN>: all the configured stub or for ward servers failed, at zone .
10:24:56 unbound: [2187:0] error: SERVFAIL <pixel.advertising.com. A IN>: all the configured stub or forwa rd servers failed, at zone .
10:24:04 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. A IN>: all the configured stub or for ward servers failed, at zone .
10:24:03 unbound: [2187:0] error: SERVFAIL <pixel.advertising.com. A IN>: all the configured stub or forwa rd servers failed, at zone .
10:18:50 unbound: [2187:0] error: SERVFAIL <web.ssp.yahoo.com. A IN>: all the configured stub or forward s ervers failed, at zone .
10:12:45 unbound: [2187:0] error: SERVFAIL <ocsp.msocsp.com. A IN>: all the configured stub or forward ser vers failed, at zone .
10:01:12 unbound: [2187:0] error: SERVFAIL <pixel.advertising.com. A IN>: all the configured stub or forwa rd servers failed, at zone .
09:57:17 unbound: [2187:0] error: SERVFAIL <support.mozilla.org. A IN>: all the configured stub or forward servers failed, at zone .
09:54:49 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. A IN>: all the configured stub or for ward servers failed, at zone .
09:54:44 unbound: [2187:0] error: SERVFAIL <c2shb.ssp.yahoo.com. A IN>: all the configured stub or forward servers failed, at zone .
09:52:45 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. A IN>: all the configured stub or for ward servers failed, at zone .
09:45:10 unbound: [2187:0] error: SERVFAIL <pixel.advertising.com. A IN>: all the configured stub or forwa rd servers failed, at zone .
09:44:22 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. A IN>: all the configured stub or for ward servers failed, at zone .
09:39:51 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. A IN>: all the configured stub or for ward servers failed, at zone .
09:39:03 unbound: [2187:0] error: SERVFAIL <pixel.advertising.com. A IN>: all the configured stub or forwa rd servers failed, at zone .
09:36:01 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. A IN>: all the configured stub or for ward servers failed, at zone .
09:34:25 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. A IN>: all the configured stub or for ward servers failed, at zone .
09:33:55 unbound: [2187:0] error: SERVFAIL <loadus.exelator.com. A IN>: all the configured stub or forward servers failed, at zone .
09:33:55 unbound: [2187:0] error: SERVFAIL <pixel.advertising.com. A IN>: all the configured stub or forwa rd servers failed, at zone .
09:31:33 unbound: [2187:0] error: SERVFAIL <pixel.advertising.com. A IN>: all the configured stub or forwa rd servers failed, at zone .
09:31:00 unbound: [2187:0] error: SERVFAIL <pixel.advertising.com. A IN>: all the configured stub or forwa rd servers failed, at zone .
09:27:43 unbound: [2187:0] error: SERVFAIL <pixel.advertising.com. A IN>: all the configured stub or forwa rd servers failed, at zone .
09:25:49 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. A IN>: all the configured stub or for ward servers failed, at zone .
09:25:09 unbound: [2187:0] error: SERVFAIL <web.ssp.yahoo.com. A IN>: all the configured stub or forward s ervers failed, at zone .
09:23:34 unbound: [2187:0] error: SERVFAIL <pixel.advertising.com. A IN>: all the configured stub or forwa rd servers failed, at zone .
09:20:22 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. A IN>: all the configured stub or for ward servers failed, at zone .
09:16:39 unbound: [2187:0] error: SERVFAIL <pixel.advertising.com. A IN>: all the configured stub or forwa rd servers failed, at zone .
09:13:21 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. A IN>: all the configured stub or for ward servers failed, at zone .
09:13:12 unbound: [2187:0] error: SERVFAIL <ads.stickyadstv.com. A IN>: all the configured stub or forward servers failed, at zone .
09:12:22 unbound: [2187:0] error: SERVFAIL <support.mozilla.org. A IN>: all the configured stub or forward servers failed, at zone .
09:11:32 unbound: [2187:0] error: SERVFAIL <c2shb.ssp.yahoo.com. A IN>: all the configured stub or forward servers failed, at zone .
09:10:13 unbound: [2187:0] error: SERVFAIL <c2shb.ssp.yahoo.com. A IN>: all the configured stub or forward servers failed, at zone .
09:09:40 unbound: [2187:0] error: SERVFAIL <c2shb.ssp.yahoo.com. A IN>: all the configured stub or forward servers failed, at zone .
09:09:18 unbound: [2187:0] error: SERVFAIL <web.ssp.yahoo.com. A IN>: all the configured stub or forward s ervers failed, at zone .
09:09:18 unbound: [2187:0] error: SERVFAIL <support.mozilla.org. A IN>: all the configured stub or forward servers failed, at zone .
09:09:18 unbound: [2187:0] error: SERVFAIL <c2shb.ssp.yahoo.com. A IN>: all the configured stub or forward servers failed, at zone .
09:06:11 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. A IN>: all the configured stub or for ward servers failed, at zone .
09:06:05 unbound: [2187:0] error: SERVFAIL <service.idsync.analytics.yahoo.com. A IN>: all the configured stub or forward servers failed, at zone .
09:06:05 unbound: [2187:0] error: SERVFAIL <s.update.adsrvr.org. A IN>: all the configured stub or forward servers failed, at zone .
09:06:05 unbound: [2187:0] error: SERVFAIL <play.itunes.apple.com. A IN>: all the configured stub or forwa rd servers failed, at zone .
09:05:22 unbound: [2187:0] error: SERVFAIL <support.mozilla.org. A IN>: all the configured stub or forward servers failed, at zone .
09:01:28 unbound: [2187:0] error: SERVFAIL <web.ssp.yahoo.com. A IN>: all the configured stub or forward s ervers failed, at zone .
09:01:28 unbound: [2187:0] error: SERVFAIL <pixel.advertising.com. A IN>: all the configured stub or forwa rd servers failed, at zone .
09:00:48 unbound: [2187:0] error: SERVFAIL <support.mozilla.org. A IN>: all the configured stub or forward servers failed, at zone .
09:00:31 unbound: [2187:0] error: SERVFAIL <c2shb.ssp.yahoo.com. A IN>: all the configured stub or forward servers failed, at zone .
09:00:21 unbound: [2187:0] error: SERVFAIL <c2shb.ssp.yahoo.com. A IN>: all the configured stub or forward servers failed, at zone .
09:00:18 unbound: [2187:0] error: SERVFAIL <ups.analytics.yahoo.com. A IN>: all the configured stub or for ward servers failed, at zone .
08:59:26 unbound: [2187:0] error: SERVFAIL <7.tlu.dl.delivery.mp.microsoft.com. A IN>: request has exceede d the maximum number restarts (eg. indirections) stop at cs11.wpc.v0cdn.net.
2

I have a script which counts how many of these SERVFAIL messgaes I get per week. Typically this is between 1 and 300 except when I had a problem with my fibre connection going down or I have disconnected IPFire from my fibre connection to test something and then I end up with 2000 to 4500 in that week.

Your quantity of SERVFAIL messages does not look normal. These are usually an indication that there is a problem making a connection to all or a significant number of the DNS Servers. However your overall Status is Working

If you press the Check DNS Servers button what do you get for each of the servers that you have enabled.

If any of these show Error in red instead of OK in green, if you hold your mouse pointer over the error word then you will get a messagebox pop up showing what the problem with that server is.

Are you aware of any connection issues with your ISP.

1 Like
3

I checked all the servers then ran a check, everything is ok, or is listed as not validating - in black, not an error in Red. I am not aware of problems with the ISP, but I will investigate.

If you have any other suggestions please let me know, thank you for your help.

Chris

image
image1010×744 33.1 KB

4

The Not validating message looks like those DNS servers are not providing DNSSEC validation.

A suggestion I have is to disable all thos DNS servers that are showing up as Not validating , leaving the ones that have a green OK and then see if the SERVFAIL messages disappear or are at a very low level.

If yes then you need to look in the wiki dns list for other dns servers to use. The first two sections of the list provide DNS Servers that support DNSSEC for UDP/TCP or DNS-over-TLS.

https://wiki.ipfire.org/dns/public-servers

If you still get the SERVFAIL messages in the logs even with only green OK DNS servers then will need to think about next step as that shouldn’t happen.

I take it that AT&T are your ISP DNS servers.

I would also try unchecking the Use ISP-assigned DNS servers and see how that goes.

2 Likes
5

I contacted AT&T, and they mentioned that these messages can come up when the AT&T Modem’s built in Firewall is on. They turned it off, then for the next several minutes, I saw no servfail messages come up in the log. Since then I refreshed the logs and the quantity of messages has been cut in half. I went from about 125 messages / hr to about 75 messages / hr, so that helped some. I tried your suggestions, I will wait to see how much difference that makes.

1 Like