Analyse des logs
Voici un extrait des logs de connexion à un serveur nginx :
1
192.168.1.36 - - [26/Nov/2017:15:06:47 +0100] "GET /home.php HTTP/1.1" 200 45 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0"
2
192.168.1.36 - - [26/Nov/2017:15:25:47 +0100] "GET /home.php HTTP/1.1" 304 0 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0"
3
192.168.43.222 - - [28/Nov/2017:14:21:23 +0100] "GET / HTTP/1.1" 200 17 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0"
4
192.168.43.222 - - [28/Nov/2017:14:21:23 +0100] "GET /favicon.ico HTTP/1.1" 404 143 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0"
5
192.168.43.222 - - [28/Nov/2017:14:21:23 +0100] "GET /favicon.ico HTTP/1.1" 404 143 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0"
6
192.168.43.222 - - [28/Nov/2017:14:22:17 +0100] "GET / HTTP/1.1" 200 18 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0"
7
192.168.43.222 - - [28/Nov/2017:14:22:17 +0100] "GET /favicon.ico HTTP/1.1" 404 143 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0"
8
192.168.43.222 - - [28/Nov/2017:14:22:17 +0100] "GET /favicon.ico HTTP/1.1" 404 143 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0"
9
192.168.43.222 - - [01/Dec/2017:12:02:41 +0100] "GET / HTTP/1.1" 200 17 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0"
10
192.168.43.222 - - [01/Dec/2017:12:02:41 +0100] "GET /favicon.ico HTTP/1.1" 404 143 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0"
192.168.1.36 - - [26/Nov/2017:15:06:47 +0100] "GET /home.php HTTP/1.1" 200 45 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0" 192.168.1.36 - - [26/Nov/2017:15:25:47 +0100] "GET /home.php HTTP/1.1" 304 0 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0" 192.168.43.222 - - [28/Nov/2017:14:21:23 +0100] "GET / HTTP/1.1" 200 17 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0" 192.168.43.222 - - [28/Nov/2017:14:21:23 +0100] "GET /favicon.ico HTTP/1.1" 404 143 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0" 192.168.43.222 - - [28/Nov/2017:14:21:23 +0100] "GET /favicon.ico HTTP/1.1" 404 143 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0" 192.168.43.222 - - [28/Nov/2017:14:22:17 +0100] "GET / HTTP/1.1" 200 18 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0" 192.168.43.222 - - [28/Nov/2017:14:22:17 +0100] "GET /favicon.ico HTTP/1.1" 404 143 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0" 192.168.43.222 - - [28/Nov/2017:14:22:17 +0100] "GET /favicon.ico HTTP/1.1" 404 143 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0" 192.168.43.222 - - [01/Dec/2017:12:02:41 +0100] "GET / HTTP/1.1" 200 17 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0" 192.168.43.222 - - [01/Dec/2017:12:02:41 +0100] "GET /favicon.ico HTTP/1.1" 404 143 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0"
Extrait de /var/log/nginx/error.log :
1
2017/11/26 14:11:34 [emerg] 882#882: open() "/home/logs/nginx-access.log" failed (2: No such file or directory)
2017/11/26 14:11:34 [emerg] 882#882: open() "/home/logs/nginx-access.log" failed (2: No such file or directory)
Votre choixChoix attenduRéponse
Il peut être utile lorsque nous ne comprenons pas un problème de s'intéresser aux logs qui contiennent beaucoup d'informations sur les connexions ainsi que les erreurs.