问题
I want to programme my own anti distraction tool. I can not / do not want to use hosts or third party apps. When using IPSEC or Windows firewall, it only accepts IP adresses. There is
youtube.[264 TLD]
www.youtube.[264 TLD]
subdomains.youtube.[264 TLD]
Appearantly there is no way anymore to get a complete list of youtube sub domains.
Can someone think of a way to somehow obtain all youtube ip addresses and block them on ip level other than using brute force subdomain pinging?
回答1:
If you have your own DNS server you can block domains from resolving. Here is a guide to block domains in Bind DNS server.
To get all the IP addresses there is no way. What you can do is, install dig. It's available in linux but not in windows.
Then time to time enter dig youtube.com. It'll show you all the resolved IPs from DNS cache.
See my result
$ dig youtube.com A
; <<>> DiG 9.7.0-P1 <<>> youtube.com A
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 13442
;; flags: qr rd ra; QUERY: 1, ANSWER: 16, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;youtube.com. IN A
;; ANSWER SECTION:
youtube.com. 83 IN A 74.125.235.47
youtube.com. 83 IN A 74.125.235.46
youtube.com. 83 IN A 74.125.235.45
youtube.com. 83 IN A 74.125.235.44
youtube.com. 83 IN A 74.125.235.43
youtube.com. 83 IN A 74.125.235.42
youtube.com. 83 IN A 74.125.235.41
youtube.com. 83 IN A 74.125.235.40
youtube.com. 83 IN A 74.125.235.39
youtube.com. 83 IN A 74.125.235.38
youtube.com. 83 IN A 74.125.235.37
youtube.com. 83 IN A 74.125.235.36
youtube.com. 83 IN A 74.125.235.35
youtube.com. 83 IN A 74.125.235.34
youtube.com. 83 IN A 74.125.235.33
youtube.com. 83 IN A 74.125.235.32
;; Query time: 0 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Sat Feb 18 22:26:58 2012
;; MSG SIZE rcvd: 285
回答2:
The way to found all the IP address asociate with a URL is first to find the AS Number, you can get it in http://networktools.nl/asinfo/ For YouTube get it in http://networktools.nl/asinfo/youtube.com There you get the AS Number
Primary ASN : 15169
Now, type in terminal
whois -h whois.radb.net -- '-i origin AS15169' | grep ^route
And there you will get all IP Address, the list is long but you can find similar address that can be grouped in a subnet.
回答3:
youtube current address list is
- 64.18.0.0/20
- 64.233.160.0/19
- 66.102.0.0/20
- 66.249.80.0/20
- 72.14.192.0/18
- 74.125.0.0/16
- 173.194.0.0/16
- 207.126.144.0/20
- 209.85.128.0/17
- 216.58.208.0/20
- 216.239.32.0/19
来源：https://stackoverflow.com/questions/9342782/is-there-a-way-to-get-all-ip-addresses-of-youtube-to-block-it-with-windows-firew