[GH-ISSUE #2474] Linux client ignores DNS setting in config #1105

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opened 2026-10-13 20:34:27 +00:00 by bsakaguchi · 2 comments

bsakaguchi commented

2026-10-13 20:34:27 +00:00

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Originally created by @dumbler on GitHub (Apr 13, 2026).
Original GitHub issue: https://github.com/amnezia-vpn/amnezia-client/issues/2474

Describe the bug
Linux client creates iptables chain 'amnvpn.320.allowDNS' that is statically filled with 1.1.1.1 and 1.0.0.1 DNSes and ignores custom set DNS in tunnel .conf file. Also client should change 'nameserver' record in /etc/resolv.conf to DNS record provided by .conf file during connection activation, and roll back to previous setings on connection stop.

To Reproduce
Steps to reproduce the behavior:

Start tunnel
iptables -nvL amnvpn.320.allowDNS -> only 1.1.1.1:53 and 1.0.0.1:53 destinations allowed
cat /etc/resolv.conf -> no 'nameserver' records update

Expected behavior
Added custom DNS IP to amnvpn.320.allowDNS chain (tcp/53 and udp/53)
Removed previous 'nameserver' entries in /etc/resolv.conf and added custom DNS entry

Originally created by @dumbler on GitHub (Apr 13, 2026). Original GitHub issue: https://github.com/amnezia-vpn/amnezia-client/issues/2474 **Describe the bug** Linux client creates iptables chain 'amnvpn.320.allowDNS' that is statically filled with 1.1.1.1 and 1.0.0.1 DNSes and ignores custom set DNS in tunnel .conf file. Also client should change 'nameserver' record in /etc/resolv.conf to DNS record provided by .conf file during connection activation, and roll back to previous setings on connection stop. **To Reproduce** Steps to reproduce the behavior: 1. Start tunnel 2. iptables -nvL amnvpn.320.allowDNS -> only 1.1.1.1:53 and 1.0.0.1:53 destinations allowed 3. cat /etc/resolv.conf -> no 'nameserver' records update **Expected behavior** Added custom DNS IP to amnvpn.320.allowDNS chain (tcp/53 and udp/53) Removed previous 'nameserver' entries in /etc/resolv.conf and added custom DNS entry

bsakaguchi commented

2026-10-13 20:34:28 +00:00

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@Vitalik93 commented on GitHub (Apr 14, 2026):

Looks like the same bug https://github.com/amnezia-vpn/amnezia-client/issues/2480

@Vitalik93 commented on GitHub (Apr 14, 2026): Looks like the same bug https://github.com/amnezia-vpn/amnezia-client/issues/2480

bsakaguchi commented

2026-10-13 20:34:29 +00:00

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@Flashwalker commented on GitHub (Apr 16, 2026):

#2379

@Flashwalker commented on GitHub (Apr 16, 2026): #2379

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amnezia-vpn/amnezia-client#1105

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