no DNS resolution
Posted: Thu May 23, 2019 9:05 pm
Hi,
since the last viscosity update, it's not possible to resolve DNS anymore.
2019-05-23 12:43:23: Viscosity Mac 1.7.15 (1488)
2019-05-23 12:43:23: Viscosity OpenVPN Engine Started
2019-05-23 12:43:23: Running on macOS 10.14.4
2019-05-23 12:43:23: ---------
2019-05-23 12:44:42: State changed to Connecting
2019-05-23 12:44:42: Checking reachability status of connection...
2019-05-23 12:44:42: DNS resolution failed for vpn.mycompany.com
2019-05-23 12:44:42: Connection is not reachable. Disconnecting.
2019-05-23 12:44:42: State changed to Disconnected
2019-05-23 12:44:42: Connection will be reconnected when it becomes reachable
# dig vpn.mycompany.com
; <<>> DiG 9.10.6 <<>> vpn.mycompany.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 5111
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;vpn.mycompany.com. IN A
;; ANSWER SECTION:
vpn.mycompany.com. 9 IN A 83.x.x.x
;; Query time: 185 msec
;; SERVER: 10.69.6.1#53(10.69.6.1)
;; WHEN: Thu May 23 12:52:09 CEST 2019
;; MSG SIZE rcvd: 77
# sudo tcpdump -nn -i any port 53
tcpdump: data link type PKTAP
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on any, link-type PKTAP (Apple DLT_PKTAP), capture size 262144 bytes
12:44:41.229281 IP 10.69.6.243.60236 > 10.69.6.1.53: 11742+ A? outlook.ha.office365.com. (42)
12:44:41.229616 IP 10.69.6.1.53 > 10.69.6.243.60236: 11742 6/0/0 CNAME outlook.ms-acdc.office.com., CNAME dhr-efz.ms-acdc.office.com., A 52.97.139.2, A 40.101.88.194, A 52.97.147.178, A 40.101.9.178 (165)
.... nothing happens....
I changed the domain to something else, like www.sparklabs.com but absolutely no dns resolution attempt is taking place.
since the last viscosity update, it's not possible to resolve DNS anymore.
2019-05-23 12:43:23: Viscosity Mac 1.7.15 (1488)
2019-05-23 12:43:23: Viscosity OpenVPN Engine Started
2019-05-23 12:43:23: Running on macOS 10.14.4
2019-05-23 12:43:23: ---------
2019-05-23 12:44:42: State changed to Connecting
2019-05-23 12:44:42: Checking reachability status of connection...
2019-05-23 12:44:42: DNS resolution failed for vpn.mycompany.com
2019-05-23 12:44:42: Connection is not reachable. Disconnecting.
2019-05-23 12:44:42: State changed to Disconnected
2019-05-23 12:44:42: Connection will be reconnected when it becomes reachable
# dig vpn.mycompany.com
; <<>> DiG 9.10.6 <<>> vpn.mycompany.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 5111
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;vpn.mycompany.com. IN A
;; ANSWER SECTION:
vpn.mycompany.com. 9 IN A 83.x.x.x
;; Query time: 185 msec
;; SERVER: 10.69.6.1#53(10.69.6.1)
;; WHEN: Thu May 23 12:52:09 CEST 2019
;; MSG SIZE rcvd: 77
# sudo tcpdump -nn -i any port 53
tcpdump: data link type PKTAP
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on any, link-type PKTAP (Apple DLT_PKTAP), capture size 262144 bytes
12:44:41.229281 IP 10.69.6.243.60236 > 10.69.6.1.53: 11742+ A? outlook.ha.office365.com. (42)
12:44:41.229616 IP 10.69.6.1.53 > 10.69.6.243.60236: 11742 6/0/0 CNAME outlook.ms-acdc.office.com., CNAME dhr-efz.ms-acdc.office.com., A 52.97.139.2, A 40.101.88.194, A 52.97.147.178, A 40.101.9.178 (165)
.... nothing happens....
I changed the domain to something else, like www.sparklabs.com but absolutely no dns resolution attempt is taking place.