<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div>tcp queries are being answered, but udp queries receive no response.</div><div>This is independent of client location (local, remote).</div><div><br class=""></div><div>A ktrace shows 8 bytes are written on fd 89, the 8 bytes read on fd 88.</div><div>The next read gets an errno 35 (see below).</div><div><br class=""></div><div>clueless,</div><div>Axel</div><div><br class=""></div><div><br class=""></div><div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Monaco; background-color: rgb(255, 255, 255);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">root@ns5:/var/log # uname -a</span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Monaco; background-color: rgb(255, 255, 255);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">FreeBSD ns5 12.1-RELEASE-p8 FreeBSD 12.1-RELEASE-p8 GENERIC amd64</span></div><div style="margin: 0px; font-stretch: normal; line-height: normal; background-color: rgb(255, 255, 255);" class=""><div style="font-family: Monaco; font-size: 11px; margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div style="font-family: Monaco; font-size: 11px; margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">root@ns5:/var/log # named -V</span></div><div style="font-family: Monaco; font-size: 11px; margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">BIND 9.16.6 (Stable Release) <id:25846cf></span></div><div style="font-family: Monaco; font-size: 11px; margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">running on FreeBSD amd64 12.1-RELEASE-p8 FreeBSD 12.1-RELEASE-p8 GENERIC</span></div><div style="font-family: Monaco; font-size: 11px; margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">built by make with '--disable-linux-caps' '--localstatedir=/var' '--sysconfdir=/usr/local/etc/namedb' '--with-dlopen=yes' '--with-libxml2' '--with-openssl=/usr' '--with-readline=-L/usr/local/lib -ledit' '--with-dlz-filesystem=yes' '--enable-dnstap' '--disable-fixed-rrset' '--disable-geoip' '--without-maxminddb' '--without-gssapi' '--with-libidn2=/usr/local' '--with-json-c' '--disable-largefile' '--with-lmdb=/usr/local' '--disable-native-pkcs11' '--without-python' '--disable-querytrace' '--enable-tcp-fastopen' '--disable-symtable' '--prefix=/usr/local' '--mandir=/usr/local/man' '--infodir=/usr/local/share/info/' '--build=amd64-portbld-freebsd12.1' 'build_alias=amd64-portbld-freebsd12.1' 'CC=cc' 'CFLAGS=-O2 -pipe -DLIBICONV_PLUG -fstack-protector-strong -isystem /usr/local/include -fno-strict-aliasing ' 'LDFLAGS= -L/usr/local/lib -ljson-c -fstack-protector-strong ' 'LIBS=-L/usr/local/lib' 'CPPFLAGS=-DLIBICONV_PLUG -isystem /usr/local/include' 'CPP=cpp' 'PKG_CONFIG=pkgconf'</span></div><div style="font-family: Monaco; font-size: 11px; margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">compiled by CLANG 4.2.1 Compatible FreeBSD Clang 8.0.1 (tags/RELEASE_801/final 366581)</span></div><div style="font-family: Monaco; font-size: 11px; margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">compiled with OpenSSL version: OpenSSL 1.1.1d-freebsd 10 Sep 2019</span></div><div style="font-family: Monaco; font-size: 11px; margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">linked to OpenSSL version: OpenSSL 1.1.1d-freebsd 10 Sep 2019</span></div><div style="font-family: Monaco; font-size: 11px; margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">compiled with libuv version: 1.38.1</span></div><div style="font-family: Monaco; font-size: 11px; margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">linked to libuv version: 1.38.1</span></div><div style="font-family: Monaco; font-size: 11px; margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">compiled with libxml2 version: 2.9.10</span></div><div style="font-family: Monaco; font-size: 11px; margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">linked to libxml2 version: 20910</span></div><div style="font-family: Monaco; font-size: 11px; margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">compiled with json-c version: 0.15</span></div><div style="font-family: Monaco; font-size: 11px; margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">linked to json-c version: 0.15</span></div><div style="font-family: Monaco; font-size: 11px; margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">compiled with zlib version: 1.2.11</span></div><div style="font-family: Monaco; font-size: 11px; margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">linked to zlib version: 1.2.11</span></div><div style="font-family: Monaco; font-size: 11px; margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">compiled with protobuf-c version: 1.3.2</span></div><div style="font-family: Monaco; font-size: 11px; margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">linked to protobuf-c version: 1.3.2</span></div><div style="font-family: Monaco; font-size: 11px; margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">threads support is enabled</span></div><div style="font-family: Monaco; font-size: 11px;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures;" class=""><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class="">23480 isc-socket-0 STRU struct kevent[] = { { ident=512, filter=EVFILT_READ, flags=0, fflags=0, data=0x35, udata=0x0 } }</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 RET kevent 0x1</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 CALL recvmsg(0x200,0x7fffdbddbb70,0)</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 GIO fd 512 read 53 bytes</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 0x0000 552a 0120 0001 0000 0000 0001 0377 7777 |U*. .........www|</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 0x0010 0568 6569 7365 0264 6500 0001 0001 0000 |.<a href="http://heise.de" class="">heise.de</a>.......|</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 0x0020 2910 0000 0000 0000 0c00 0a00 0810 a161 |)..............a|</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 0x0030 cea7 9c05 fa |.....|</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""><br class=""></span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 STRU struct sockaddr { AF_INET, 193.105.105.1:56885 }</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 RET recvmsg 0x35</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 CALL _umtx_op(0x802f38bb8,0x15,0x1,0,0)</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 RET _umtx_op 0</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 CALL kevent(0x5a,0x7fffdbddbec0,0x1,0,0,0)</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 STRU struct kevent[] = { { ident=512, filter=EVFILT_READ, flags=0x2<EV_DELETE>, fflags=0, data=0, udata=0x0 } }</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 STRU struct kevent[] = { }</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 RET kevent 0</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 CALL kevent(0x5a,0,0,0x802fa7200,0x800,0)</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 STRU struct kevent[] = { }</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-worker0000 RET _umtx_op 0</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-worker0000 CALL recvmsg(0x200,0x7fffddfec9c0,0)</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-worker0000 RET recvmsg -1 errno 35</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-worker0000 CALL write(0x59,0x7fffddfecbc0,0x8)</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-worker0000 GIO fd 89 wrote 8 bytes</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 0x0000 0002 0000 fdff ffff |........|</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""><br class=""></span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-worker0000 RET write 0x8</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-worker0000 CALL _umtx_op(0x80178f188,0xf,0,0,0)</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 STRU struct kevent[] = { { ident=88, filter=EVFILT_READ, flags=0, fflags=0, data=0x8, udata=0x0 } }</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 RET kevent 0x1</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 CALL read(0x58,0x7fffdbddbe40,0x8)</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 GIO fd 88 read 8 bytes</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 0x0000 0002 0000 fdff ffff |........|</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""><br class=""></span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 RET read 0x8</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 CALL kevent(0x5a,0x7fffdbddbec0,0x1,0,0,0)</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 STRU struct kevent[] = { { ident=512, filter=EVFILT_READ, flags=0x1<EV_ADD>, fflags=0, data=0, udata=0x0 } }</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 STRU struct kevent[] = { }</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 RET kevent 0</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 CALL read(0x58,0x7fffdbddbe40,0x8)</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 RET read -1 errno 35</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 CALL kevent(0x5a,0,0,0x802fa7200,0x800,0)</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 STRU struct kevent[] = { }</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 STRU struct kevent[] = { { ident=512, filter=EVFILT_READ, flags=0, fflags=0, data=0x35, udata=0x0 } }</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 RET kevent 0x1</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 CALL recvmsg(0x200,0x7fffdbddbb70,0)</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 23480 isc-socket-0 GIO fd 512 read 53 bytes</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 0x0000 552a 0120 0001 0000 0000 0001 0377 7777 |U*. .........www|</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 0x0010 0568 6569 7365 0264 6500 0001 0001 0000 |.<a href="http://heise.de" class="">heise.de</a>.......|</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 0x0020 2910 0000 0000 0000 0c00 0a00 0810 a161 |)..............a|</span></font></div><div class=""><font face="Monaco" class=""><span style="font-size: 11px;" class=""> 0x0030 cea7 9c05 fa |.....|</span></font></div><div style="font-family: Monaco; font-size: 11px;" class="">. . .</div></span></div></div></div><div class="">
<div dir="auto" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div dir="auto" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant-ligatures: normal; font-variant-position: normal; font-variant-caps: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div class="">---<br class="">PGP-Key: CDE74120 ☀ computing @ chaos claudius</div></div></div></div></div></div>
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