tcp queries are being answered, but udp queries receive no response. This is independent of client location (local, remote).
A ktrace shows 8 bytes are written on fd 89, the 8 bytes read on fd 88.
The next read gets an errno 35 (see below).
clueless,
Axel
root@ns5:/var/log # uname -a
FreeBSD ns5 12.1-RELEASE-p8 FreeBSD 12.1-RELEASE-p8 GENERIC amd64
root@ns5:/var/log # named -V
BIND 9.16.6 (Stable Release) <id:25846cf>
running on FreeBSD amd64 12.1-RELEASE-p8 FreeBSD 12.1-RELEASE-p8 GENERIC
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'
compiled by CLANG 4.2.1 Compatible FreeBSD Clang 8.0.1 (tags/RELEASE_801/final
366581)
compiled with OpenSSL version: OpenSSL 1.1.1d-freebsd 10 Sep 2019
linked to OpenSSL version: OpenSSL 1.1.1d-freebsd 10 Sep 2019
compiled with libuv version: 1.38.1
linked to libuv version: 1.38.1
compiled with libxml2 version: 2.9.10
linked to libxml2 version: 20910
compiled with json-c version: 0.15
linked to json-c version: 0.15
compiled with zlib version: 1.2.11
linked to zlib version: 1.2.11
compiled with protobuf-c version: 1.3.2
linked to protobuf-c version: 1.3.2
threads support is enabled
23480 isc-socket-0 STRU struct kevent[] = { { ident=512, filter=EVFILT_READ,
flags=0, fflags=0, data=0x35, udata=0x0 } }
23480 isc-socket-0 RET kevent 0x1
23480 isc-socket-0 CALL recvmsg(0x200,0x7fffdbddbb70,0)
23480 isc-socket-0 GIO fd 512 read 53 bytes
0x0000 552a 0120 0001 0000 0000 0001 0377 7777 |U*. .........www|
0x0010 0568 6569 7365 0264 6500 0001 0001 0000 |.heise.de.......|
0x0020 2910 0000 0000 0000 0c00 0a00 0810 a161 |)..............a|
0x0030 cea7 9c05 fa |.....|
23480 isc-socket-0 STRU struct sockaddr { AF_INET, 193.105.105.1:56885 }
23480 isc-socket-0 RET recvmsg 0x35
23480 isc-socket-0 CALL _umtx_op(0x802f38bb8,0x15,0x1,0,0)
23480 isc-socket-0 RET _umtx_op 0
23480 isc-socket-0 CALL kevent(0x5a,0x7fffdbddbec0,0x1,0,0,0)
23480 isc-socket-0 STRU struct kevent[] = { { ident=512, filter=EVFILT_READ,
flags=0x2<EV_DELETE>, fflags=0, data=0, udata=0x0 } }
23480 isc-socket-0 STRU struct kevent[] = { }
23480 isc-socket-0 RET kevent 0
23480 isc-socket-0 CALL kevent(0x5a,0,0,0x802fa7200,0x800,0)
23480 isc-socket-0 STRU struct kevent[] = { }
23480 isc-worker0000 RET _umtx_op 0
23480 isc-worker0000 CALL recvmsg(0x200,0x7fffddfec9c0,0)
23480 isc-worker0000 RET recvmsg -1 errno 35
23480 isc-worker0000 CALL write(0x59,0x7fffddfecbc0,0x8)
23480 isc-worker0000 GIO fd 89 wrote 8 bytes
0x0000 0002 0000 fdff ffff |........|
23480 isc-worker0000 RET write 0x8
23480 isc-worker0000 CALL _umtx_op(0x80178f188,0xf,0,0,0)
23480 isc-socket-0 STRU struct kevent[] = { { ident=88, filter=EVFILT_READ,
flags=0, fflags=0, data=0x8, udata=0x0 } }
23480 isc-socket-0 RET kevent 0x1
23480 isc-socket-0 CALL read(0x58,0x7fffdbddbe40,0x8)
23480 isc-socket-0 GIO fd 88 read 8 bytes
0x0000 0002 0000 fdff ffff |........|
23480 isc-socket-0 RET read 0x8
23480 isc-socket-0 CALL kevent(0x5a,0x7fffdbddbec0,0x1,0,0,0)
23480 isc-socket-0 STRU struct kevent[] = { { ident=512, filter=EVFILT_READ,
flags=0x1<EV_ADD>, fflags=0, data=0, udata=0x0 } }
23480 isc-socket-0 STRU struct kevent[] = { }
23480 isc-socket-0 RET kevent 0
23480 isc-socket-0 CALL read(0x58,0x7fffdbddbe40,0x8)
23480 isc-socket-0 RET read -1 errno 35
23480 isc-socket-0 CALL kevent(0x5a,0,0,0x802fa7200,0x800,0)
23480 isc-socket-0 STRU struct kevent[] = { }
23480 isc-socket-0 STRU struct kevent[] = { { ident=512, filter=EVFILT_READ,
flags=0, fflags=0, data=0x35, udata=0x0 } }
23480 isc-socket-0 RET kevent 0x1
23480 isc-socket-0 CALL recvmsg(0x200,0x7fffdbddbb70,0)
23480 isc-socket-0 GIO fd 512 read 53 bytes
0x0000 552a 0120 0001 0000 0000 0001 0377 7777 |U*. .........www|
0x0010 0568 6569 7365 0264 6500 0001 0001 0000 |.heise.de.......|
0x0020 2910 0000 0000 0000 0c00 0a00 0810 a161 |)..............a|
0x0030 cea7 9c05 fa |.....|
. . .
---
PGP-Key: CDE74120 ☀ computing @ chaos claudius
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