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Plusnet Safeguard is blocking updates for Android phones from ota.googlezip.net

ncw
Hooked
Posts: 7
Fixes: 1
Registered: ‎27-01-2020

Plusnet Safeguard is blocking updates for Android phones from ota.googlezip.net

My pixel phone running Android wants to receive its updates from ota.googlezip.net

 

However Plusnet Safeguard is blocking this domain meaning no Android phones are receiving updates

 

# dig +nostats ota.googlezip.net @213.120.234.42

; <<>> DiG 9.11.5-P4-5.1+deb10u6-Debian <<>> +nostats ota.googlezip.net @213.120.234.42
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1942
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;ota.googlezip.net. IN A

;; ANSWER SECTION:
ota.googlezip.net. 27 IN A 81.130.111.239

 

# dig +nostats ota.googlezip.net @213.120.234.42

; <<>> DiG 9.11.5-P4-5.1+deb10u6-Debian <<>> +nostats ota.googlezip.net @213.120.234.42
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 23130
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;ota.googlezip.net. IN A

;; ANSWER SECTION:
ota.googlezip.net. 30 IN A 81.130.111.239

 

Wheras the non safeguard DNS servers are giving the correct (unblocked) address

 

# dig +nostats ota.googlezip.net @212.159.13.49

; <<>> DiG 9.11.5-P4-5.1+deb10u6-Debian <<>> +nostats ota.googlezip.net @212.159.13.49
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 30263
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;ota.googlezip.net. IN A

;; ANSWER SECTION:
ota.googlezip.net. 32473 IN A 216.239.32.112

 

Please can you fix?

 

Thanks

 
3 REPLIES 3
ncw
Hooked
Posts: 7
Fixes: 1
Registered: ‎27-01-2020

Re: Plusnet Safeguard is blocking updates for Android phones from ota.googlezip.net

In order to make updates work for my phone I needed to unblock these two websites

 

  • ota.googlezip.net
  • ota-cache1.googlezip.net

 

It seems the whole *.googlezip.net domain is blocked

bobpullen
Community Gaffer
Community Gaffer
Posts: 16,926
Thanks: 5,012
Fixes: 317
Registered: ‎04-04-2007

Re: Plusnet Safeguard is blocking updates for Android phones from ota.googlezip.net

I wonder if it's something to do with Chrome's Data Saver feature which I believe proxies web traffic through the domain compress.googlezip.net.

Obviously, a content filter like Safeguard is going to discrimninate against proxy server addresses and 'rightfully' block them. Perhaps the OTA's are getting inadvertently wrapped up in this?

Bob Pullen
Plusnet Product Team
If I've been helpful then please give thanks ⤵

ncw
Hooked
Posts: 7
Fixes: 1
Registered: ‎27-01-2020

Re: Plusnet Safeguard is blocking updates for Android phones from ota.googlezip.net

Yes, I think you are right.

 

The Safeguard blocking needs to be a bit more focussed and just block `compress.googlezip.net` and not `*.googlezip.net` which it does at the moment which blocks the OTA updates.

 

It probably needs to block `check.googlezip.net` and `proxy.googlezip.net` too according to a few minutes of web searching.