Christoph Kukulies
k...@kukulies.org


> Am 08.11.2023 um 14:04 schrieb Frederic Lecaille <flecai...@haproxy.com>:
> 
> On 11/8/23 13:37, Frederic Lecaille wrote:
>> On 11/8/23 11:27, Christoph Kukulies wrote:
>>> parsing [/etc/haproxy/haproxy.cfg:60] : 'bind' : unsupported protocol
>>> family 2 for address 'quic4@0.0.0.0 <mailto:quic4@0.0.0.0>:4>
>>> Nov 08 11:16:54 mail.
>>> 
>>> 
>>> I'm using sample.haproxy.cfg from Shawns haproxy-scripts and there the line:
>>> 
>>> bind quic4@0.0.0.0 <mailto:quic4@0.0.0.0>:443 name quic443 ssl crt crt
>>> /etc/haproxy/fullchain.pemproto quic alpn h3 npn h3 allow-0rtt curves
>>> secp521r1:secp384r1
>>> 
>>> --
>>> Christoph
>>> 
>>> 
>> Hello,
>> 
>> 0.0.0.0 special address has been forbidden for QUIC bindings. Have a
>> look to "bind" keyword documentation.
>> 
>> Regards,
>> 
>> Fred.
>> 
> 
> After having checked with Amaury, the issue is in the documentation
> which is not up-to-date. 0.0.0.0 binding address should be supported our
> QUIC implementation.
> 
> That said, I do not know what haproxy version you are using. The last
> 2.8 version accepts to bind such addresses.
> 
> 


I posted the output of haproxy -vv (on demand of William Lallemand). Maybe you 
overlooked it:


root@mail:~/haproxy-scripts#  /usr/local/sbin/haproxy -vv
HAProxy version 2.8.3-d6e5cd-70 2023/10/26 - https://haproxy.org/ 
<https://haproxy.org/>
Status: long-term supported branch - will stop receiving fixes around Q2 2028.
Known bugs: http://www.haproxy.org/bugs/bugs-2.8.3.html 
<http://www.haproxy.org/bugs/bugs-2.8.3.html>
Running on: Linux 5.15.0-88-generic #98-Ubuntu SMP Mon Oct 2 15:18:56 UTC 2023 
x86_64
Build options :
  TARGET  = linux-glibc
  CPU     = native
  CC      = cc
  CFLAGS  = -O2 -march=native -g -Wall -Wextra -Wundef 
-Wdeclaration-after-statement -Wfatal-errors -Wtype-limits 
-Wshift-negative-value -Wshift-overflow=2 -Wduplicated-cond -Wnull-dereference 
-fwrapv -Wno-address-of-packed-member -Wno-unused-label -Wno-sign-compare 
-Wno-unused-parameter -Wno-clobbered -Wno-missing-field-initializers 
-Wno-cast-function-type -Wno-string-plus-int -Wno-atomic-alignment
  OPTIONS = USE_OPENSSL=1 USE_ZLIB=1 USE_SYSTEMD=1 USE_QUIC=1 USE_PCRE2_JIT=1
  DEBUG   = 


And the install script installed the following config file (kindly overwriting 
my own config, thank you :-(. )

global
        maxconn 64
        daemon
        log 127.0.0.1 len 65535 format rfc5424 local0
        log 127.0.0.1 len 65535 format rfc5424 local1 notice


defaults
        log global
        option httplog
        mode http
        timeout connect 5s
        timeout client  15s
        timeout server  120s
        timeout http-keep-alive 5s
        timeout check   9990


frontend web80
        bind 0.0.0.0:80 name web80
        default_backend be-local-81

frontend web
        description One frontend to rule them all
        bind 0.0.0.0:443 name web443 ssl crt 
/etc/ssl/certs/local/selfsigned.pem alpn h2,http/1.1 npn h2,http/1.1 allow-0rtt 
curves secp521r1:secp384r1
        bind quic4@0.0.0.0:443 name quic443 ssl crt 
/etc/ssl/certs/local/selfsigned.pem proto quic alpn h3,h3-29,h3-28,h3-27 npn 
h3,h3-29,h3-28,h3-27 allow-0rtt curves secp521r1:secp384r1
        http-response add-header alt-svc 'h3=":443"; ma=7200,h3-29=":443"; 
ma=7200,h3-Q050=":443"; ma=7200,h3-Q046=":443"; ma=7200,h3-Q043=":443"; 
ma=7200,quic=":443"; ma=7200'
        default_backend be-local-81
        stats enable
        stats uri /hapeek
        stats refresh 15

backend be-local-81
        option httpchk
        server localhost 127.0.0.1:81


which leads to haproxy failing on startup:

Nov  8 16:38:28 mail haproxy[101582]: [ALERT]    (101582) : parsing 
[/etc/haproxy/haproxy.cfg:26] : 'bind' : unsupported protocol family 2 for 
address 'quic4@0.0.0.0:443'

 So what can I do about it other than trusting upon the scripts and configs to 
work? Or ask here for help?

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