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General Security Discussions
DNS over HTTPS
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<blockquote data-quote="SeriousHoax" data-source="post: 826339" data-attributes="member: 78686"><p>I do the same as <a href="https://malwaretips.com/members/nightwalker.23015/" target="_blank">Nightwalker</a> suggested. I use SimpleDnsCrypt on my PC for system-wide DNS Over HTTPS. DNS over HTTPS (DoH) is better than all the other secure alternatives such as DNS over TLS (DoT) and DnsCrypt. On DoH, all DNS queries go through the Port 443 which is used for HTTPS hence the name DoH. Because of it, it's not possible/harder to differentiate DNS queries from regular internet traffic . But DoT usually uses a separate port 853. Your ISP would know anything that is going through port 853 is dns queries so if your ISP decides to block port 853 then you wouldn't have any way to use DoT but they can't block port 443, that's why DoH is more secure and private.</p><p>ISPs have become mad at Firefox because Firefox thinking about enabling DoH on their browser by default. U.K.’s Internet Services Providers Association (ISPA) has nominated Mozilla as an Internet villain. Hilarious <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite126" alt=":ROFLMAO:" title="ROFL :ROFLMAO:" loading="lazy" data-shortname=":ROFLMAO:" /> If DoH is used then ISPs can't track users DNS queries, inject ads and block sites hence their rage on Mozilla.</p><p>ISP might still track your dns queries from SNI that's why you need to enable ESNI on Firefox from about:config. Most of the popular site and all the cloudflare hosted sites have ESNI support but ESNI doesn't work with the SimpleDnsCrypt app. So on Firefox also change the value of "network.trr.mode" to 2. Firefox by default uses Cloudflare DNS. Setting the mode to 2 means Firefox is gonna use Cloudflare DoH but if for any reason the server is down or something then it will switch back to your system's or router's default DNS. Cloudflare's privacy policy is already pretty good imo and they have a special agreement with Mozilla so they collect even less anonymous data for Firefox users.</p><p>Btw, you can use other DNS that has DoH support on Firefox too for example, Quad9, Cleanbrowsing DNS, Adguard DNS.</p><p>It's also possible to block sites via the SimpleDnsCrypt app. You can add websites to the blacklist. Very helpful for blocking ads directly on DNS level on your PC without using something like Pi-Hole. </p><p>So, this is what I personally use and recommend.</p></blockquote><p></p>
[QUOTE="SeriousHoax, post: 826339, member: 78686"] I do the same as [URL='https://malwaretips.com/members/nightwalker.23015/']Nightwalker[/URL] suggested. I use SimpleDnsCrypt on my PC for system-wide DNS Over HTTPS. DNS over HTTPS (DoH) is better than all the other secure alternatives such as DNS over TLS (DoT) and DnsCrypt. On DoH, all DNS queries go through the Port 443 which is used for HTTPS hence the name DoH. Because of it, it's not possible/harder to differentiate DNS queries from regular internet traffic . But DoT usually uses a separate port 853. Your ISP would know anything that is going through port 853 is dns queries so if your ISP decides to block port 853 then you wouldn't have any way to use DoT but they can't block port 443, that's why DoH is more secure and private. ISPs have become mad at Firefox because Firefox thinking about enabling DoH on their browser by default. U.K.’s Internet Services Providers Association (ISPA) has nominated Mozilla as an Internet villain. Hilarious :ROFLMAO: If DoH is used then ISPs can't track users DNS queries, inject ads and block sites hence their rage on Mozilla. ISP might still track your dns queries from SNI that's why you need to enable ESNI on Firefox from about:config. Most of the popular site and all the cloudflare hosted sites have ESNI support but ESNI doesn't work with the SimpleDnsCrypt app. So on Firefox also change the value of "network.trr.mode" to 2. Firefox by default uses Cloudflare DNS. Setting the mode to 2 means Firefox is gonna use Cloudflare DoH but if for any reason the server is down or something then it will switch back to your system's or router's default DNS. Cloudflare's privacy policy is already pretty good imo and they have a special agreement with Mozilla so they collect even less anonymous data for Firefox users. Btw, you can use other DNS that has DoH support on Firefox too for example, Quad9, Cleanbrowsing DNS, Adguard DNS. It's also possible to block sites via the SimpleDnsCrypt app. You can add websites to the blacklist. Very helpful for blocking ads directly on DNS level on your PC without using something like Pi-Hole. So, this is what I personally use and recommend. [/QUOTE]
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