Lukáš

14. 10. 2020 v 9:16, Stepan Liska <stepan@comlinks.cz>:
Ne že bych znal nginx nějak dobře, ale přijde mi divné, že by sám od sebe bez vnějšího povelu najednou 23:40 restartoval. A jinak nechápu proč by dělal znovu listen. Klidně to může být nějaký posthook na certbotu (ale ten to snad dělá jenom když je nový certifikát, ne?). Koukni taky na log CRONu nebo také máš systemd, tak ten má taky nějaké naplánované úlohy.

Přijde mi to, jak kdyby se pustil nějaký restart, starý proces se nestihl z nějakého důvodu ukončit a už se startoval nový. Je nad tímhle záznamem ještě něco dalšího velmi blízko (< 2min) před tímto časem?

Neboli - prošel bych všechny systémové logy a podíval se co se dělo okolo času 23:40 a pokusil se zjistit příčinu restart nginx.

Š.

Dne 14. 10. 20 v 8:48 petr.bolf@taborpolana.cz napsal(a):
sudo netstat -luntp | grep "80\|443"

nic tam neběží na těch portech.

Server jsem spustil v cca 16 hod a ve 23.40 to spadlo. To se do toho musí motat nějaký další program, možná by mohl být vinník certbot, nebo nějaké nastavení v cronu? Ale nic podezřelého nevidím.

sudo tail -f /var/log/nginx/error.log.1
2020/10/13 23:40:34 [emerg] 19730#19730: bind() to [::]:443 failed (98: Address already in use)
2020/10/13 23:40:34 [emerg] 19730#19730: bind() to 0.0.0.0:443 failed (98: Address already in use)
2020/10/13 23:40:34 [emerg] 19730#19730: bind() to 0.0.0.0:80 failed (98: Address already in use)
2020/10/13 23:40:34 [emerg] 19730#19730: bind() to [::]:80 failed (98: Address already in use)
2020/10/13 23:40:34 [emerg] 19730#19730: bind() to [::]:443 failed (98: Address already in use)
2020/10/13 23:40:34 [emerg] 19730#19730: bind() to 0.0.0.0:443 failed (98: Address already in use)
2020/10/13 23:40:34 [emerg] 19730#19730: bind() to 0.0.0.0:80 failed (98: Address already in use)
2020/10/13 23:40:34 [emerg] 19730#19730: bind() to [::]:80 failed (98: Address already in use)
2020/10/13 23:40:34 [emerg] 19730#19730: still could not bind()
2020/10/13 23:40:37 [alert] 19672#19672: unlink() "/run/nginx.pid" failed (2: No such file or directory)

sudo systemctl status nginx.service
● nginx.service - A high performance web server and a reverse proxy server
   Loaded: loaded (/lib/systemd/system/nginx.service; enabled; vendor preset: en
   Active: failed (Result: exit-code) since Tue 2020-10-13 23:40:36 CEST; 8h ago
     Docs: man:nginx(8)
Process: 19729 ExecStartPre=/usr/sbin/nginx -t -q -g daemon on; master_process
Process: 19730 ExecStart=/usr/sbin/nginx -g daemon on; master_process on; (cod

Oct 13 23:40:35 domogled nginx[19730]: nginx: [emerg] bind() to 0.0.0.0:80 faile
Oct 13 23:40:35 domogled nginx[19730]: nginx: [emerg] bind() to [::]:80 failed (
Oct 13 23:40:36 domogled nginx[19730]: nginx: [emerg] bind() to [::]:443 failed
Oct 13 23:40:36 domogled nginx[19730]: nginx: [emerg] bind() to 0.0.0.0:443 fail
Oct 13 23:40:36 domogled nginx[19730]: nginx: [emerg] bind() to 0.0.0.0:80 faile
Oct 13 23:40:36 domogled nginx[19730]: nginx: [emerg] bind() to [::]:80 failed (
Oct 13 23:40:36 domogled nginx[19730]: nginx: [emerg] still could not bind()
Oct 13 23:40:36 domogled systemd[1]: nginx.service: Control process exited, code
Oct 13 23:40:36 domogled systemd[1]: nginx.service: Failed with result 'exit-cod
Oct 13 23:40:37 domogled systemd[1]: Failed to start A high performance web serv
lines 1-17/17 (END)

Dne 13. 10. 20 v 17:15 Jan Pleva napsal(a):
no, nabehne... prave ze nenabehne... pokud tam ten web bezi v mezicase, pak je dost mozna problem v tom, ze bud tam bezi jiny webserver, nebo nejaka druha instance nginxu o ketere ten start script nevi. Tak nebo onak, nginx se nemuze poslouchat na 80/443 protoze uz na tom portu neco jineho posloucha. At uz nginx, Apache nebo neco jineho.

Jak pise kolega, netstat -luntp | grep "80\|443" by melo vnest svetlo odkud vitr fouka.

S pozdravem

Jan Pleva

út 13. 10. 2020 v 16:03 odesílatel petr.bolf@taborpolana.cz <petr.bolf@taborpolana.cz> napsal:

dík

Mate mne, že server naběhne, nginx -t je spokojený a chyba se projeví až
po nějakém čase. Zatím se mi zdá, že jsem měl bordel v jednom
konfiguráku a jakoby to tam udělal certbot, a nebo se tam něco omylem
zkopírovalo.

Když jsem měl chybu v konfiguraci serveru, většinou se to projevilo už
při startu, nebo při nginx -t.

Petr

Dne 13. 10. 20 v 15:31 Vojtěch Oram napsal(a):
> Ahoj,
> neběží tim tam třeba ještě Apache? Vypadá to, že Nginx nemůže
> nastartovat, protože jsou porty 80 a 443 už obsazené. Zkus se kouknout
> na výstup "netstat -nlp", co tam běží na portu 80 a 443.
>
> S přáním pěkného dne
>
> Vojtěch "Flaiming" Oram
> https://vojtechoram.cz
>
> Dne 13. 10. 20 v 14:57 petr.bolf@taborpolana.cz napsal(a):
>> zdravím,
>>
>>
>> nevěděl by někdo s čím může být problém - asi někde v konfiguraci
>> serverů pro nginx.
>>
>> sudo nginx -t
>> nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
>> nginx: configuration file /etc/nginx/nginx.conf test is successful
>>
>>
>> sudo systemctl start nginx.service
>>
>> sudo systemctl status nginx.service
>> ● nginx.service - A high performance web server and a reverse proxy
>> server
>>    Loaded: loaded (/lib/systemd/system/nginx.service; enabled; vendor
>> preset: en
>>    Active: active (running) since Tue 2020-10-13 14:49:08 CEST; 6min ago
>>      Docs: man:nginx(8)
>> Process: 16277 ExecStartPre=/usr/sbin/nginx -t -q -g daemon on;
>> master_process
>> Process: 16278 ExecStart=/usr/sbin/nginx -g daemon on;
>> master_process on; (cod
>> Main PID: 16279 (nginx)
>>    Memory: 21.0M
>>    CGroup: /system.slice/nginx.service
>>            ├─16279 nginx: master process /usr/sbin/nginx -g daemon
>> on; master_pr
>>            ├─16280 nginx: worker process
>>            ├─16281 nginx: worker process
>>            ├─16282 nginx: worker process
>>            ├─16283 nginx: worker process
>>            ├─16284 nginx: worker process
>>            ├─16285 nginx: worker process
>>            ├─16286 nginx: worker process
>>            └─16287 nginx: worker process
>>
>>
>> jenže po nějakém čase server spadne.
>>
>>
>> sudo tail -f /var/log/nginx/error.log
>> 2020/10/13 02:39:01 [emerg] 7506#7506: bind() to [::]:443 failed (98:
>> Address already in use)
>> 2020/10/13 02:39:01 [emerg] 7506#7506: bind() to 0.0.0.0:443 failed
>> (98: Address already in use)
>> 2020/10/13 02:39:01 [emerg] 7506#7506: bind() to 0.0.0.0:80 failed
>> (98: Address already in use)
>> 2020/10/13 02:39:01 [emerg] 7506#7506: bind() to [::]:80 failed (98:
>> Address already in use)
>> 2020/10/13 02:39:01 [emerg] 7506#7506: bind() to [::]:443 failed (98:
>> Address already in use)
>> 2020/10/13 02:39:01 [emerg] 7506#7506: bind() to 0.0.0.0:443 failed
>> (98: Address already in use)
>> 2020/10/13 02:39:01 [emerg] 7506#7506: bind() to 0.0.0.0:80 failed
>> (98: Address already in use)
>> 2020/10/13 02:39:01 [emerg] 7506#7506: bind() to [::]:80 failed (98:
>> Address already in use)
>> 2020/10/13 02:39:01 [emerg] 7506#7506: still could not bind()
>> 2020/10/13 02:39:04 [alert] 7357#7357: unlink() "/run/nginx.pid"
>> failed (2: No such file or directory)
>>
>>
>> a když je spadlý tak
>>
>>
>> sudo systemctl status nginx.service
>> [sudo] password for pruga:
>> ● nginx.service - A high performance web server and a reverse proxy
>> server
>>    Loaded: loaded (/lib/systemd/system/nginx.service; enabled; vendor
>> preset: en
>>    Active: failed (Result: exit-code) since Tue 2020-10-13 02:39:04
>> CEST; 11h ag
>>      Docs: man:nginx(8)
>> Process: 7501 ExecStartPre=/usr/sbin/nginx -t -q -g daemon on;
>> master_process
>> Process: 7506 ExecStart=/usr/sbin/nginx -g daemon on;
>> master_process on; (code
>>
>> Oct 13 02:39:03 domogled nginx[7506]: nginx: [emerg] bind() to
>> 0.0.0.0:80 failed
>> Oct 13 02:39:03 domogled nginx[7506]: nginx: [emerg] bind() to
>> [::]:80 failed (9
>> Oct 13 02:39:03 domogled nginx[7506]: nginx: [emerg] bind() to
>> [::]:443 failed (
>> Oct 13 02:39:03 domogled nginx[7506]: nginx: [emerg] bind() to
>> 0.0.0.0:443 faile
>> Oct 13 02:39:03 domogled nginx[7506]: nginx: [emerg] bind() to
>> 0.0.0.0:80 failed
>> Oct 13 02:39:03 domogled nginx[7506]: nginx: [emerg] bind() to
>> [::]:80 failed (9
>> Oct 13 02:39:04 domogled nginx[7506]: nginx: [emerg] still could not
>> bind()
>> Oct 13 02:39:04 domogled systemd[1]: nginx.service: Control process
>> exited, code
>> Oct 13 02:39:04 domogled systemd[1]: nginx.service: Failed with
>> result 'exit-cod
>> Oct 13 02:39:04 domogled systemd[1]: Failed to start A high
>> performance web serv
>>
>>
>> přičemž
>>
>> sudo systemctl start nginx.service
>>
>>
>> ho zase nastartuje a zase chvilu běží.
>>
>>
>> díky
>>
>>
>> Petr Bolf
>>
>> _______________________________________________
>> Community-list mailing list
>> Community-list@lists.vpsfree.cz
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