[Dnsmasq-discuss] Adblock Ineffective: CNAME overriding the cache, making the blocklist ineffective

e ethern at riseup.net
Wed Sep 24 10:01:18 UTC 2025


Or better, how about stop remembering every steps like:

> dig livedoor.blogimg.jp A
;; ANSWER SECTION:
livedoor.blogimg.jp.    1983    IN      CNAME  
ldblog-image-cdn.line-apps.com.
ldblog-image-cdn.line-apps.com. 1983 IN CNAME  
blgimg.line-apps.com.akadns.net.
blgimg.line-apps.com.akadns.net. 1983 IN CNAME  livedoor.edgesuite.net.
livedoor.edgesuite.net. 1983    IN      CNAME   a1887.w73.akamai.net.
a1887.w73.akamai.net.   1983    IN      A       2.17.251.20
a1887.w73.akamai.net.   1983    IN      A       23.216.134.101
--> DNSMASQ remembers every single CNAME steps and last A.

Do this instead, just like other public DNS would??

> dig livedoor.blogimg.jp A
;; ANSWER SECTION:
livedoor.blogimg.jp.   1983    IN      A       2.17.251.20
livedoor.blogimg.jp.   1983    IN      A       23.216.134.101
--> DNSMASQ will resolve the CNAME chain, but remember only the last
destination answer.




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