[Rspamd-Users] rspamd listening on udp ports on 0.0.0.0

[Hagen Bauer]

I was probably not precise enough. I was wondering about the open ports.

But I assume you have given me the answer.

Regards

Hagen

Am 9. April 2019 22:17:48 MESZ schrieb Vsevolod Stakhov <vsevolod at rspamd.com>:
>On 09/04/2019 20:54, Hagen Bauer wrote:
>> Hi to all
>> 
>> 
>> 
>> what is the background that rspamd ist listening on a lot of udp
>ports.
>> 
>>  netstat -tulpn | grep rspamd
>> tcp        0      0 127.0.0.1:11332         0.0.0.0:*
>> LISTEN      1381/rspamd: main p
>> tcp        0      0 127.0.0.1:11333         0.0.0.0:*
>> LISTEN      1381/rspamd: main p
>> tcp        0      0 127.0.0.1:11334         0.0.0.0:*
>> LISTEN      1381/rspamd: main p
>> udp        0      0 0.0.0.0:35152           0.0.0.0:*
>>        2744/rspamd: rspamd
>> udp        0      0 0.0.0.0:51586           0.0.0.0:*
>>        2744/rspamd: rspamd
>> udp        0      0 0.0.0.0:51631           0.0.0.0:*
>>        2741/rspamd: rspamd
>> udp        0      0 0.0.0.0:59824           0.0.0.0:*
>>        2744/rspamd: rspamd
>> udp        0      0 0.0.0.0:43475           0.0.0.0:*
>>        2743/rspamd: rspamd
>> udp        0      0 0.0.0.0:43482           0.0.0.0:*
>>        2741/rspamd: rsp
>> 
>> and a lot more that I cut off.
>> 
>
>As I've replied in GH issue that are sockets for DNS resolver pool.
>There is no such thing as "listening" in UDP so I can hardly understand
>what are you asking about. Rspamd uses `recvfrom` system call to read
>replies from DNS server(s).
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