As of glibc 2.22, vmnet-natd is unable to look up external results with the default settings.
Temporary workaround
Open /etc/vmware/vmnet8/dhcpd/dhcpd.conf and change:
option domain-name-servers 172.20.142.2;
to
option domain-name-servers 8.8.8.8;
Bug Reports
Debugging
The issue seems to be with vmnet-natd not using res_init.c properly.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=history;f=resolv/res_init.c;hb=5e7fdabd7df1fc6c5...
My guess is that these are the changes that broke it.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=blobdiff;f=resolv/res_init.c;h=02590fb1fdbb15c9f...
There's roughly only a dozen calls where res_init.c is being used, so it shouldn't be too difficult to debug. The only issue is that vmnet-natd is stripped; if someone could send me the symbols or a non-stripped binary, that would be great.
ltrace -f -p 1337 # vmmnet-natd PID here
2020 strncpy(0x7ffff83451e0, "ctftime.org", 64) = 0x7ffff83451e0
2020 malloc(16) = 0x2644cb0
2020 malloc(168) = 0x2644380
2020 pipe(0x7ffff83451d0) = 0
2020 fcntl(6, 3, 0x429280, 0x7ff3f92482e7) = 0
2020 fcntl(6, 4, 2048, 0x7ff3f97221a2) = 0
2020 malloc(65884) = 0x2654640
2020 strncpy(0x26443e8, "ctftime.org", 64) = 0x26443e8
2020 pthread_create(0x7ffff83451c8, 0, 0x428ba0, 0x2644cb0) = 0
10054 mempcpy(0x7ff3f2aeebb0, 0x26449c6, 8, 7) = 0x7ff3f2aeebb8
2020 pthread_detach(0x7ff3f2af0700, 0x7ff3f2aeffb0, 0, 0x800000 <unfinished ...>
10054 mempcpy(0x7ff3f2aeebb8, 0x26449ce, 4, 3 <unfinished ...>
2020 <... pthread_detach resumed> ) = 0
10054 <... mempcpy resumed> ) = 0x7ff3f2aeebbc
2020 poll(0x26121b0, 6, 1000, 0x80412 <unfinished ...>
10054 __res_ninit(0x7ff3f2aefca0, 103, 11, 0 <unfinished ...>
2020 <... poll resumed> ) = 1
2020 gettimeofday(0x7ffff834d390, 0) = 0
2020 read(3, "", 32768) = 71
2020 malloc(199) = 0x2644430
2020 memcpy(0x26444b0, "\0PV\3604\330\0\f)\335\0049\b\0E\0\09]\241\0\0\200\021\327:\300\250B\205\300\250"..., 71) = 0x26444b0
2020 mempcpy(0x7ffff8344b80, 0x26444e6, 8, 7 <unfinished ...>
10054 <... __res_ninit resumed> ) = 0
2020 <... mempcpy resumed> ) = 0x7ffff8344b88
10054 __res_iclose(0x7ff3f2aefca0, 0, 2, 0 <unfinished ...>
2020 mempcpy(0x7ffff8344b88, 0x26444ee, 4, 3 <unfinished ...>
10054 <... __res_iclose resumed> ) = 0
10054 __errno_location() = 0x7ff3f2af0680
10054 __res_nclose(0x7ff3f2aefca0, 0, 0, 0) = 0xffffffff
10054 __errno_location() = 0x7ff3f2af0680
10054 memcpy(0x265473c, "o\0\0\0E\0\09]\240\0\0\200\021\327;\300\250B\205\300\250B\002\344j\05\0%\210\237"..., 61) = 0x265473c
10054 write(10, "\001", 1) = 1
10054 close(10) = 0
10054 free(0x2644cb0) = <void>
10054 +++ exited (status 0) +++
2020 <... mempcpy resumed> ) = 0x7ffff8344b8c
