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Dont Worry Government, I Got This Porn Filter Sorted

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Re: Dont Worry Government, I Got This Porn Filter Sorted

#12
post #10

Pretty comical video, one quick tip. If you typed a command on the terminal and you get the "Operation not permitted." You can run the last command prepending sudo like this: sudo !!

You just gave me 2 more years back.

Bash/csh have a wonderful history expansion feature[0]. I can never remember all of the modifiers, but I am learning them slowly.

[0]: https://www.gnu.org/software/bash/manual/bashref.html#Event-...

Re: Dont Worry Government, I Got This Porn Filter Sorted

#14
post #6

> Any request that is denied by OpenDNS is then allowed by our DNS server, and any request allowed by OpenDNS is blocked by us. The most interesting part of this to me is using multiple DNS providers to determine which category the site is in. It's both simple and effective. If they actually go ahead with this plan in the UK and it's implemented similarly (eg. via DNS rather than IP blocking), somebody should make a…

They can't and don't do it with just a DNS, it'll have to be DNS + HTTP URL. Otherwise porn hosted on one large shared hosting would block everything. (e.g. imagine if the Amazon EC2 DNS got blocked).

The current UK ISP filter (the one that already filtered Wikipedia), used DNS & HTTP. IP addresses that needed filtering were redirected to their HTTP server by sending back their IP address, and then a HTTP proxy was used to filter specific URLs. This allowed them to block certain URLs. It was initally detected because lots of wikipedians noticed a lot of edits (basically lots of the UK) coming from a small amount of IP addresses (the IP addresses of the proxies)

Re: Dont Worry Government, I Got This Porn Filter Sorted

#15
post #10

Pretty comical video, one quick tip. If you typed a command on the terminal and you get the "Operation not permitted." You can run the last command prepending sudo like this: sudo !!

Another neat expansion: !$ is the last argument of the last command you entered. Useful when you mistype the command name.

Re: Dont Worry Government, I Got This Porn Filter Sorted

#17
post #14
post #6

> Any request that is denied by OpenDNS is then allowed by our DNS server, and any request allowed by OpenDNS is blocked by us. The most interesting part of this to me is using multiple DNS providers to determine which category the site is in. It's both simple and effective. If they actually go ahead with this plan in the UK and it's implemented similarly (eg. via DNS rather than IP blocking), somebody should make a…

They can't and don't do it with just a DNS, it'll have to be DNS + HTTP URL. Otherwise porn hosted on one large shared hosting would block everything. (e.g. imagine if the Amazon EC2 DNS got blocked). The current UK ISP filter (the one that already filtered Wikipedia), used DNS & HTTP. IP addresses that needed filtering were redirected to their HTTP server by sending back their IP address, and then a HTTP proxy was u…

They CANNOT use HTTP filtering as that would break on HTTPS.

Re: Dont Worry Government, I Got This Porn Filter Sorted

#18
post #17
post #14

Earlier quoted context omitted.

They can't and don't do it with just a DNS, it'll have to be DNS + HTTP URL. Otherwise porn hosted on one large shared hosting would block everything. (e.g. imagine if the Amazon EC2 DNS got blocked). The current UK ISP filter (the one that already filtered Wikipedia), used DNS & HTTP. IP addresses that needed filtering were redirected to their HTTP server by sending back their IP address, and then a HTTP proxy was u…

They CANNOT use HTTP filtering as that would break on HTTPS.

Nope, the domain is always visible on HTTPS, due to SNI. They can just block it.

Re: Dont Worry Government, I Got This Porn Filter Sorted

#19
post #10

Pretty comical video, one quick tip. If you typed a command on the terminal and you get the "Operation not permitted." You can run the last command prepending sudo like this: sudo !!

Another neat expansion: !$ is the last argument of the last command you entered. Useful when you mistype the command name.

Alt+. does the same and (at least in Zsh) allows you to cycle backwards.
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