Auf meinem Debian-Server kann nicht auf Port 8000 zugegriffen werden

Auf meinem Debian-Server kann nicht auf Port 8000 zugegriffen werden

Ich habe einen Debian-Server mit fusionPBX, ich habe es installiert mitDasoffizielles Skript. Es verwendet nginx zum Hosten der Anwendung. Ich habe versucht, einen weiteren Server (Django) in der Konfigurationsdatei von nginx hinzuzufügen, um einen anderen Server zu unterstützen, der auf derselben Maschine läuft. Trotzdem kann ich nicht auf den Django-Server zugreifen.

nmap auf dieser Maschine von einer anderen Maschine sagt

$ nmap host_name
Host is up (0.00044s latency).
Not shown: 991 filtered ports
PORT     STATE  SERVICE
22/tcp   open   ssh
80/tcp   open   http
443/tcp  open   https
5000/tcp closed upnp
5060/tcp open   sip
5061/tcp closed sip-tls
5080/tcp open   onscreen
5087/tcp closed biotic
7443/tcp open   oracleas-https

Nmap done: 1 IP address (1 host up) scanned in 4.25 seconds

nmap von derselben Maschine

# nmap localhost
Starting Nmap 7.80 ( https://nmap.org ) at 2022-12-17 17:47 UTC
Nmap scan report for localhost (127.0.0.1)
Host is up (0.0000060s latency).
Other addresses for localhost (not scanned): ::1
Not shown: 992 closed ports
PORT     STATE SERVICE
22/tcp   open  ssh
25/tcp   open  smtp
80/tcp   open  http
443/tcp  open  https
5432/tcp open  postgresql
8000/tcp open  http-alt
8001/tcp open  vcom-tunnel
8021/tcp open  ftp-proxy

Nmap done: 1 IP address (1 host up) scanned in 0.09 seconds

Ich möchte Port 8000 öffnen und hier ist die Ausgabe von iptables.

# iptables -L -n
Chain INPUT (policy DROP)
target     prot opt source               destination         
sip-auth-fail  all  --  0.0.0.0/0            0.0.0.0/0           
sip-auth-ip  all  --  0.0.0.0/0            0.0.0.0/0           
ACCEPT     all  --  0.0.0.0/0            0.0.0.0/0           
ACCEPT     all  --  0.0.0.0/0            0.0.0.0/0            state RELATED,ESTABLISHED
DROP       udp  --  0.0.0.0/0            0.0.0.0/0            udp dpts:5060:5091 STRING match  "friendly-scanner" ALGO name bm TO 65535 ICASE
DROP       tcp  --  0.0.0.0/0            0.0.0.0/0            tcp dpts:5060:5091 STRING match  "friendly-scanner" ALGO name bm TO 65535 ICASE
DROP       udp  --  0.0.0.0/0            0.0.0.0/0            udp dpts:5060:5091 STRING match  "sipcli/" ALGO name bm TO 65535 ICASE
DROP       tcp  --  0.0.0.0/0            0.0.0.0/0            tcp dpts:5060:5091 STRING match  "sipcli/" ALGO name bm TO 65535 ICASE
DROP       udp  --  0.0.0.0/0            0.0.0.0/0            udp dpts:5060:5091 STRING match  "VaxSIPUserAgent/" ALGO name bm TO 65535 ICASE
DROP       tcp  --  0.0.0.0/0            0.0.0.0/0            tcp dpts:5060:5091 STRING match  "VaxSIPUserAgent/" ALGO name bm TO 65535 ICASE
DROP       udp  --  0.0.0.0/0            0.0.0.0/0            udp dpts:5060:5091 STRING match  "pplsip" ALGO name bm TO 65535 ICASE
DROP       tcp  --  0.0.0.0/0            0.0.0.0/0            tcp dpts:5060:5091 STRING match  "pplsip" ALGO name bm TO 65535 ICASE
DROP       udp  --  0.0.0.0/0            0.0.0.0/0            udp dpts:5060:5091 STRING match  "system " ALGO name bm TO 65535 ICASE
DROP       tcp  --  0.0.0.0/0            0.0.0.0/0            tcp dpts:5060:5091 STRING match  "system " ALGO name bm TO 65535 ICASE
DROP       udp  --  0.0.0.0/0            0.0.0.0/0            udp dpts:5060:5091 STRING match  "exec." ALGO name bm TO 65535 ICASE
DROP       tcp  --  0.0.0.0/0            0.0.0.0/0            tcp dpts:5060:5091 STRING match  "exec." ALGO name bm TO 65535 ICASE
DROP       udp  --  0.0.0.0/0            0.0.0.0/0            udp dpts:5060:5091 STRING match  "multipart/mixed;boundary" ALGO name bm TO 65535 ICASE
DROP       tcp  --  0.0.0.0/0            0.0.0.0/0            tcp dpts:5060:5091 STRING match  "multipart/mixed;boundary" ALGO name bm TO 65535 ICASE
ACCEPT     tcp  --  0.0.0.0/0            0.0.0.0/0            tcp dpt:22
ACCEPT     tcp  --  0.0.0.0/0            0.0.0.0/0            tcp dpt:80
ACCEPT     tcp  --  0.0.0.0/0            0.0.0.0/0            tcp dpt:443
ACCEPT     tcp  --  0.0.0.0/0            0.0.0.0/0            tcp dpt:7443
ACCEPT     tcp  --  0.0.0.0/0            0.0.0.0/0            tcp dpts:5060:5091
ACCEPT     udp  --  0.0.0.0/0            0.0.0.0/0            udp dpts:5060:5091
ACCEPT     udp  --  0.0.0.0/0            0.0.0.0/0            udp dpts:16384:32768
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0            icmptype 8
ACCEPT     udp  --  0.0.0.0/0            0.0.0.0/0            udp dpt:1194

Chain FORWARD (policy DROP)
target     prot opt source               destination         

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination         

Chain sip-auth-fail (1 references)
target     prot opt source               destination         
DROP       all  --  128.90.90.74         0.0.0.0/0           
DROP       all  --  128.90.170.155       0.0.0.0/0           
DROP       all  --  128.90.170.172       0.0.0.0/0           
DROP       all  --  128.90.161.188       0.0.0.0/0           
DROP       all  --  128.90.168.31        0.0.0.0/0           
DROP       all  --  128.90.140.253       0.0.0.0/0           
DROP       all  --  128.90.170.116       0.0.0.0/0           
DROP       all  --  128.90.90.7          0.0.0.0/0           

Chain sip-auth-ip (1 references)
target     prot opt source               destination         
DROP       all  --  128.90.62.144        0.0.0.0/0           
DROP       all  --  128.90.90.74         0.0.0.0/0           
DROP       all  --  128.90.170.155       0.0.0.0/0           
DROP       all  --  128.90.170.172       0.0.0.0/0           
DROP       all  --  128.90.64.207        0.0.0.0/0           
DROP       all  --  128.90.168.101       0.0.0.0/0           
DROP       all  --  128.90.170.65        0.0.0.0/0           
DROP       all  --  103.27.227.165       0.0.0.0/0           
DROP       all  --  128.90.172.177       0.0.0.0/0           
DROP       all  --  128.90.161.188       0.0.0.0/0           
DROP       all  --  128.90.109.237       0.0.0.0/0           
DROP       all  --  128.90.79.193        0.0.0.0/0           
DROP       all  --  31.6.58.26           0.0.0.0/0           
DROP       all  --  128.90.112.152       0.0.0.0/0           
DROP       all  --  103.27.227.179       0.0.0.0/0           
DROP       all  --  128.90.168.31        0.0.0.0/0           
DROP       all  --  128.90.140.253       0.0.0.0/0           
DROP       all  --  45.254.247.122       0.0.0.0/0           
DROP       all  --  128.90.170.116       0.0.0.0/0           
DROP       all  --  128.90.90.7          0.0.0.0/0

Es läuft standardmäßig unter nginx, hier ist die Standardkonfiguration

server {
    listen 127.0.0.1:80;
    server_name 127.0.0.1;
    access_log /var/log/nginx/access.log;
    error_log /var/log/nginx/error.log;

    client_max_body_size 80M;
    client_body_buffer_size 128k;

    location / {
        root /var/www/fusionpbx;
        index index.php;
    }

    location ~ \.php$ {
        fastcgi_pass unix:/var/run/php/php7.4-fpm.sock;
        #fastcgi_pass 127.0.0.1:9000;
        fastcgi_index index.php;
        include fastcgi_params;
        fastcgi_param   SCRIPT_FILENAME /var/www/fusionpbx$fastcgi_script_name;
    }

    # Allow the upgrade routines to run longer than normal
    location = /core/upgrade/index.php {
        fastcgi_pass unix:/var/run/php/php7.4-fpm.sock;
        #fastcgi_pass 127.0.0.1:9000;
        fastcgi_read_timeout 15m;
        fastcgi_index index.php;
        include fastcgi_params;
        fastcgi_param   SCRIPT_FILENAME /var/www/fusionpbx$fastcgi_script_name;
    }

    # Disable viewing .htaccess & .htpassword & .db & .git
    location ~ .htaccess {
        deny all;
    }
    location ~ .htpassword {
        deny all;
    }
    location ~^.+.(db)$ {
        deny all;
    }
    location ~ /\.git {
        deny all;
    }
    location ~ /\.lua {
        deny all;
    }
    location ~ /\. {
        deny all;
    }
}

server {
    listen 80;
    server_name fusionpbx;

    #redirect letsencrypt to dehydrated
    location ^~ /.well-known/acme-challenge {
        default_type "text/plain";
        auth_basic "off";
        alias /var/www/dehydrated;
    }

    #rewrite rule - send to https with an exception for provisioning
    if ($uri !~* ^.*(provision|xml_cdr|firmware).*$) {
        rewrite ^(.*) https://$host$1 permanent;
        break;
    }

    #REST api
    if ($uri ~* ^.*/api/.*$) {
        rewrite ^(.*)/api/(.*)$ $1/api/index.php?rewrite_uri=$2 last;
        break;
    }

    #algo
    rewrite "^.*/provision/algom([A-Fa-f0-9]{12})\.conf" /app/provision/?mac=$1&file=algom%7b%24mac%7d.conf last;

    #mitel
    rewrite "^.*/provision/MN_([A-Fa-f0-9]{12})\.cfg" /app/provision/index.php?mac=$1&file=MN_%7b%24mac%7d.cfg last;
    rewrite "^.*/provision/MN_Generic.cfg" /app/provision/index.php?mac=08000f000000&file=MN_Generic.cfg last;

    #grandstream
    rewrite "^.*/provision/cfg([A-Fa-f0-9]{12})(\.(xml|cfg))?$" /app/provision/?mac=$1;
    rewrite "^.*/provision/([A-Fa-f0-9]{12})/phonebook\.xml$" /app/provision/?mac=$1&file=phonebook.xml;
    rewrite "^.*/provision/(phonebook\.xml)?$" /app/provision/index.php?file=$1 last;
    #grandstream-wave softphone by ext because Android doesn't pass MAC.
    rewrite "^.*/provision/([0-9]{5})/cfg([A-Fa-f0-9]{12}).xml$" /app/provision/?ext=$1;

    #aastra
    rewrite "^.*/provision/aastra.cfg$" /app/provision/?mac=$1&file=aastra.cfg;
    #rewrite "^.*/provision/([A-Fa-f0-9]{12})(\.(cfg))?$" /app/provision/?mac=$1 last;

    #yealink
    #rewrite "^.*/provision/(y[0-9]{12})(\.cfg|\.boot)?$" /app/provision/index.php?file=$1$2;
    rewrite "^.*/provision/(y[0-9]{12})(\.cfg)?$" /app/provision/index.php?file=$1.cfg;
    rewrite "^.*/provision/([A-Fa-f0-9]{12})(\.(xml|cfg))?$" /app/provision/index.php?mac=$1 last;

    #polycom
    rewrite "^.*/provision/000000000000.cfg$" "/app/provision/?mac=$1&file={%24mac}.cfg";
    #rewrite "^.*/provision/sip_330(\.(ld))$" /includes/firmware/sip_330.$2;
    rewrite "^.*/provision/features.cfg$" /app/provision/?mac=$1&file=features.cfg;
    rewrite "^.*/provision/([A-Fa-f0-9]{12})-sip.cfg$" /app/provision/?mac=$1&file=sip.cfg;
    rewrite "^.*/provision/([A-Fa-f0-9]{12})-phone.cfg$" /app/provision/?mac=$1;
    rewrite "^.*/provision/([A-Fa-f0-9]{12})-registration.cfg$" "/app/provision/?mac=$1&file={%24mac}-registration.cfg";
    rewrite "^.*/provision/([A-Fa-f0-9]{12})-directory.xml$" "/app/provision/?mac=$1&file={%24mac}-directory.xml";

    #cisco
    rewrite "^.*/provision/file/(.*\.(xml|cfg))" /app/provision/?file=$1 last;
    rewrite "^.*/provision/directory\.xml$" /app/provision/?file=directory.xml;

    #Escene
    rewrite "^.*/provision/([0-9]{1,11})_Extern.xml$"       "/app/provision/?ext=$1&file={%24mac}_extern.xml" last;
    rewrite "^.*/provision/([0-9]{1,11})_Phonebook.xml$"    "/app/provision/?ext=$1&file={%24mac}_phonebook.xml" last;

    #Vtech
    rewrite "^.*/provision/VCS754_([A-Fa-f0-9]{12})\.cfg$" /app/provision/?mac=$1;
    rewrite "^.*/provision/pb([A-Fa-f0-9-]{12,17})/directory\.xml$" /app/provision/?mac=$1&file=directory.xml;

    #Digium
    rewrite "^.*/provision/([A-Fa-f0-9]{12})-contacts\.cfg$" "/app/provision/?mac=$1&file={%24mac}-contacts.cfg";
    rewrite "^.*/provision/([A-Fa-f0-9]{12})-smartblf\.cfg$" "/app/provision/?mac=$1&file={%24mac}-smartblf.cfg";

    #Snom
    rewrite "^.*/provision/-([A-Fa-f0-9]{12})?$" /app/provision/index.php?mac=$1;

    access_log /var/log/nginx/access.log;
    error_log /var/log/nginx/error.log;

    client_max_body_size 80M;
    client_body_buffer_size 128k;

    location / {
        root /var/www/fusionpbx;
        index index.php;
    }

    location ~ \.php$ {
        fastcgi_pass unix:/var/run/php/php7.4-fpm.sock;
        #fastcgi_pass 127.0.0.1:9000;
        fastcgi_read_timeout 15m;
        fastcgi_index index.php;
        include fastcgi_params;
        fastcgi_param   SCRIPT_FILENAME /var/www/fusionpbx$fastcgi_script_name;
    }

    # Allow the upgrade routines to run longer than normal
    location = /core/upgrade/index.php {
        fastcgi_pass unix:/var/run/php/php7.4-fpm.sock;
        #fastcgi_pass 127.0.0.1:9000;
        fastcgi_read_timeout 15m;
        fastcgi_index index.php;
        include fastcgi_params;
        fastcgi_param   SCRIPT_FILENAME /var/www/fusionpbx$fastcgi_script_name;
    }

    # Disable viewing .htaccess & .htpassword & .db & .git
    location ~ .htaccess {
        deny all;
    }
    location ~ .htpassword {
        deny all;
    }
    location ~^.+.(db)$ {
        deny all;
    }
    location ~ /\.git {
        deny all;
    }
    location ~ /\.lua {
        deny all;
    }
    location ~ /\. {
        deny all;
    }
}

server {
    listen 443 ssl;
    #listen 443 ssl http2;
    server_name fusionpbx;

    ssl_certificate         /etc/ssl/certs/nginx.crt;
    ssl_certificate_key     /etc/ssl/private/nginx.key;
    #ssl_protocols           TLSv1.2 TLSv1.3;
    ssl_protocols           TLSv1 TLSv1.1 TLSv1.2 TLSv1.3;
    ssl_ciphers             DHE-RSA-AES256-SHA:AES256-SHA:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384;
    ssl_session_cache       shared:SSL:40m;
    ssl_session_timeout     2h;
    ssl_session_tickets     off;

    #redirect letsencrypt to dehydrated
    location ^~ /.well-known/acme-challenge {
        default_type "text/plain";
        auth_basic "off";
        alias /var/www/dehydrated;
    }

    #REST api
    if ($uri ~* ^.*/api/.*$) {
        rewrite ^(.*)/api/(.*)$ $1/api/index.php?rewrite_uri=$2 last;
        break;
    }

    #message media
    rewrite "^/app/messages/media/(.*)/(.*)" /app/messages/message_media.php?id=$1&action=download last;

    #algo
    rewrite "^.*/provision/algom([A-Fa-f0-9]{12})\.conf" /app/provision/?mac=$1&file=algom%7b%24mac%7d.conf last;

    #mitel
    rewrite "^.*/provision/MN_([A-Fa-f0-9]{12})\.cfg" /app/provision/index.php?mac=$1&file=MN_%7b%24mac%7d.cfg last;
    rewrite "^.*/provision/MN_Generic.cfg" /app/provision/index.php?mac=08000f000000&file=MN_Generic.cfg last;

    #grandstream
    rewrite "^.*/provision/cfg([A-Fa-f0-9]{12})(\.(xml|cfg))?$" /app/provision/?mac=$1;
    rewrite "^.*/provision/([A-Fa-f0-9]{12})/phonebook\.xml$" /app/provision/?mac=$1&file=phonebook.xml;
    rewrite "^.*/provision/(phonebook\.xml)?$" /app/provision/index.php?file=$1 last;
    #grandstream-wave softphone by ext because Android doesn't pass MAC.
    rewrite "^.*/provision/([0-9]{5})/cfg([A-Fa-f0-9]{12}).xml$" /app/provision/?ext=$1;

    #aastra
    rewrite "^.*/provision/aastra.cfg$" /app/provision/?mac=$1&file=aastra.cfg;
    #rewrite "^.*/provision/([A-Fa-f0-9]{12})(\.(cfg))?$" /app/provision/?mac=$1 last;

    #yealink
    #rewrite "^.*/provision/(y[0-9]{12})(\.cfg|\.boot)?$" /app/provision/index.php?file=$1$2;
    rewrite "^.*/provision/(y[0-9]{12})(\.cfg)?$" /app/provision/index.php?file=$1.cfg;
    rewrite "^.*/provision/([A-Fa-f0-9]{12})(\.(xml|cfg))?$" /app/provision/index.php?mac=$1 last;

    #polycom
    rewrite "^.*/provision/000000000000.cfg$" "/app/provision/?mac=$1&file={%24mac}.cfg";
    #rewrite "^.*/provision/sip_330(\.(ld))$" /includes/firmware/sip_330.$2;
    rewrite "^.*/provision/features.cfg$" /app/provision/?mac=$1&file=features.cfg;
    rewrite "^.*/provision/([A-Fa-f0-9]{12})-sip.cfg$" /app/provision/?mac=$1&file=sip.cfg;
    rewrite "^.*/provision/([A-Fa-f0-9]{12})-phone.cfg$" /app/provision/?mac=$1;
    rewrite "^.*/provision/([A-Fa-f0-9]{12})-registration.cfg$" "/app/provision/?mac=$1&file={%24mac}-registration.cfg";
    rewrite "^.*/provision/([A-Fa-f0-9]{12})-directory.xml$" "/app/provision/?mac=$1&file={%24mac}-directory.xml";

    #cisco
    rewrite "^.*/provision/file/(.*\.(xml|cfg))" /app/provision/?file=$1 last;
    rewrite "^.*/provision/directory\.xml$" /app/provision/?file=directory.xml;

    #Escene
    rewrite "^.*/provision/([0-9]{1,11})_Extern.xml$"       "/app/provision/?ext=$1&file={%24mac}_extern.xml" last;
    rewrite "^.*/provision/([0-9]{1,11})_Phonebook.xml$"    "/app/provision/?ext=$1&file={%24mac}_phonebook.xml" last;

    #Vtech
    rewrite "^.*/provision/VCS754_([A-Fa-f0-9]{12})\.cfg$" /app/provision/?mac=$1;
    rewrite "^.*/provision/pb([A-Fa-f0-9-]{12,17})/directory\.xml$" /app/provision/?mac=$1&file=directory.xml;

    #Digium
    rewrite "^.*/provision/([A-Fa-f0-9]{12})-contacts\.cfg$" "/app/provision/?mac=$1&file={%24mac}-contacts.cfg";
    rewrite "^.*/provision/([A-Fa-f0-9]{12})-smartblf\.cfg$" "/app/provision/?mac=$1&file={%24mac}-smartblf.cfg";

    access_log /var/log/nginx/access.log;
    error_log /var/log/nginx/error.log;

    client_max_body_size 80M;
    client_body_buffer_size 128k;

    location / {
        root /var/www/fusionpbx;
        index index.php;
    }

    location ~ \.php$ {
        fastcgi_pass unix:/var/run/php/php7.4-fpm.sock;
        #fastcgi_pass 127.0.0.1:9000;
        fastcgi_read_timeout 15m;
        fastcgi_index index.php;
        include fastcgi_params;
        fastcgi_param   SCRIPT_FILENAME /var/www/fusionpbx$fastcgi_script_name;
    }

    # Allow the upgrade routines to run longer than normal
    location = /core/upgrade/index.php {
        fastcgi_pass unix:/var/run/php/php7.4-fpm.sock;
        #fastcgi_pass 127.0.0.1:9000;
        fastcgi_read_timeout 15m;
        fastcgi_index index.php;
        include fastcgi_params;
        fastcgi_param   SCRIPT_FILENAME /var/www/fusionpbx$fastcgi_script_name;
    }

    # Disable viewing .htaccess & .htpassword & .db & .git
    location ~ .htaccess {
        deny all;
    }
    location ~ .htpassword {
        deny all;
    }
    location ~^.+.(db)$ {
        deny all;
    }
    location ~ /\.git {
        deny all;
    }
    location ~ /\.lua {
        deny all;
    }
    location ~ /\. {
        deny all;
    }
}

Der Block, den ich hinzugefügt habe

server {
    listen 8000;
    server_name 'my_server ip';

    location = /favicon.ico { access_log off; log_not_found off; }
    location /static/ {
        root /home/freeswitch/freeswitch_api/django_api;
    }

    location / {
        include proxy_params;
        proxy_pass http://unix:/home/freeswitch/freeswitch_api/django_api/django_api.sock;
    }
}

Während der Installation führen FusionPBX-Skripte einige Befehle aus, um die iptables einzurichten. Hier ist das Skript

#!/bin/sh

#move to script directory so all relative paths work
cd "$(dirname "$0")"


#add the includes
. ./config.sh
. ./colors.sh
. ./environment.sh

#send a message
verbose "Configuring IPTables"

#defaults to nftables by default this enables iptables
if [ ."$os_codename" = ."buster" ]; then
    update-alternatives --set iptables /usr/sbin/iptables-legacy
    update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy
fi
if [ ."$os_codename" = ."bullseye" ]; then
    apt-get install -y iptables
    update-alternatives --set iptables /usr/sbin/iptables-legacy
    update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy
fi

#remove ufw
ufw reset
ufw disable
apt-get remove -y ufw
#apt-get purge ufw

#run iptables commands
iptables -A INPUT -i lo -j ACCEPT
iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -A INPUT -j DROP -p udp --dport 5060:5091 -m string --string "friendly-scanner" --algo bm --icase
iptables -A INPUT -j DROP -p tcp --dport 5060:5091 -m string --string "friendly-scanner" --algo bm --icase
iptables -A INPUT -j DROP -p udp --dport 5060:5091 -m string --string "sipcli/" --algo bm --icase
iptables -A INPUT -j DROP -p tcp --dport 5060:5091 -m string --string "sipcli/" --algo bm --icase
iptables -A INPUT -j DROP -p udp --dport 5060:5091 -m string --string "VaxSIPUserAgent/" --algo bm --icase
iptables -A INPUT -j DROP -p tcp --dport 5060:5091 -m string --string "VaxSIPUserAgent/" --algo bm --icase
iptables -A INPUT -j DROP -p udp --dport 5060:5091 -m string --string "pplsip" --algo bm --icase
iptables -A INPUT -j DROP -p tcp --dport 5060:5091 -m string --string "pplsip" --algo bm --icase
iptables -A INPUT -j DROP -p udp --dport 5060:5091 -m string --string "system " --algo bm --icase
iptables -A INPUT -j DROP -p tcp --dport 5060:5091 -m string --string "system " --algo bm --icase
iptables -A INPUT -j DROP -p udp --dport 5060:5091 -m string --string "exec." --algo bm --icase
iptables -A INPUT -j DROP -p tcp --dport 5060:5091 -m string --string "exec." --algo bm --icase
iptables -A INPUT -j DROP -p udp --dport 5060:5091 -m string --string "multipart/mixed;boundary" --algo bm --icase
iptables -A INPUT -j DROP -p tcp --dport 5060:5091 -m string --string "multipart/mixed;boundary" --algo bm --icase
iptables -A INPUT -p tcp --dport 22 -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j ACCEPT
iptables -A INPUT -p tcp --dport 7443 -j ACCEPT
iptables -A INPUT -p tcp --dport 5060:5091 -j ACCEPT
iptables -A INPUT -p udp --dport 5060:5091 -j ACCEPT
iptables -A INPUT -p udp --dport 16384:32768 -j ACCEPT
iptables -A INPUT -p icmp --icmp-type echo-request -j ACCEPT
iptables -A INPUT -p udp --dport 1194 -j ACCEPT
iptables -t mangle -A OUTPUT -p udp -m udp --sport 16384:32768 -j DSCP --set-dscp 46
iptables -t mangle -A OUTPUT -p udp -m udp --sport 5060:5091 -j DSCP --set-dscp 26
iptables -t mangle -A OUTPUT -p tcp -m tcp --sport 5060:5091 -j DSCP --set-dscp 26
iptables -P INPUT DROP
iptables -P FORWARD DROP
iptables -P OUTPUT ACCEPT

#answer the questions for iptables persistent
echo iptables-persistent iptables-persistent/autosave_v4 boolean true | debconf-set-selections
echo iptables-persistent iptables-persistent/autosave_v6 boolean true | debconf-set-selections
apt-get install -y iptables-persistent

Anschließend habe ich diese Befehle ausgeführt, um den Port 8000 zu öffnen

iptables -A INPUT -p tcp --dport 8000 -j ACCEPT
iptables -P INPUT DROP
iptables -P FORWARD DROP
iptables -P OUTPUT ACCEPT

Hier ist meine Netstat-Ausgabe:

# sudo netstat -tulpn
sudo: unable to resolve host debian-1cpu-1gb-de-fra1: Name or service not known
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name    
tcp        0      0 127.0.0.1:43171         0.0.0.0:*               LISTEN      1123/node           
tcp        0      0 94.237.97.9:5060        0.0.0.0:*               LISTEN      1193/freeswitch     
tcp        0      0 94.237.97.9:5066        0.0.0.0:*               LISTEN      1193/freeswitch     
tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      2929/nginx: master  
tcp        0      0 94.237.97.9:7443        0.0.0.0:*               LISTEN      1193/freeswitch     
tcp        0      0 127.0.0.1:8021          0.0.0.0:*               LISTEN      1193/freeswitch     
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      528/sshd: /usr/sbin 
tcp        0      0 127.0.0.1:35223         0.0.0.0:*               LISTEN      1000/node           
tcp        0      0 94.237.97.9:5080        0.0.0.0:*               LISTEN      1193/freeswitch     
tcp        0      0 127.0.0.1:5432          0.0.0.0:*               LISTEN      541/postgres        
tcp        0      0 127.0.0.1:25            0.0.0.0:*               LISTEN      878/exim4           
tcp        0      0 0.0.0.0:443             0.0.0.0:*               LISTEN      2929/nginx: master  
tcp        0      0 0.0.0.0:8000            0.0.0.0:*               LISTEN      2929/nginx: master  
tcp        0      0 0.0.0.0:8001            0.0.0.0:*               LISTEN      2176/python         
tcp6       0      0 2a04:3542:1000:910:5060 :::*                    LISTEN      1193/freeswitch     
tcp6       0      0 :::22                   :::*                    LISTEN      528/sshd: /usr/sbin 
tcp6       0      0 ::1:5432                :::*                    LISTEN      541/postgres        
tcp6       0      0 ::1:25                  :::*                    LISTEN      878/exim4           
udp        0      0 0.0.0.0:68              0.0.0.0:*                           476/dhclient        
udp        0      0 0.0.0.0:68              0.0.0.0:*                           443/dhclient        
udp        0      0 0.0.0.0:161             0.0.0.0:*                           525/snmpd           
udp        0      0 94.237.97.9:5060        0.0.0.0:*                           1193/freeswitch     
udp        0      0 94.237.97.9:5080        0.0.0.0:*                           1193/freeswitch     
udp6       0      0 2a04:3542:1000:910:5060 :::*                                1193/freeswitch 

Immer noch kein Glück. Die Nginx-Konfiguration muss richtig sein, da ich dieselbe Konfiguration auf meinem anderen Ubuntu-Server verwende und sie funktioniert. Was mache ich falsch?

Antwort1

Ich habe das Problem gelöst. Ich werde die Lösung hier für jeden hinterlassen, der auf dasselbe stößt. Eigentlich war es ganz einfach. Ich habe untersucht, wie FsuionPBX installiert wurde und wie sie die iptables konfiguriert haben. Hier ist das Skript.

#!/bin/sh

#move to script directory so all relative paths work
cd "$(dirname "$0")"


#add the includes
. ./config.sh
. ./colors.sh
. ./environment.sh

#send a message
verbose "Configuring IPTables"

#defaults to nftables by default this enables iptables
if [ ."$os_codename" = ."buster" ]; then
    update-alternatives --set iptables /usr/sbin/iptables-legacy
    update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy
fi
if [ ."$os_codename" = ."bullseye" ]; then
    apt-get install -y iptables
    update-alternatives --set iptables /usr/sbin/iptables-legacy
    update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy
fi

#remove ufw
ufw reset
ufw disable
apt-get remove -y ufw
#apt-get purge ufw

#run iptables commands
iptables -A INPUT -i lo -j ACCEPT
iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -A INPUT -j DROP -p udp --dport 5060:5091 -m string --string "friendly-scanner" --algo bm --icase
iptables -A INPUT -j DROP -p tcp --dport 5060:5091 -m string --string "friendly-scanner" --algo bm --icase
iptables -A INPUT -j DROP -p udp --dport 5060:5091 -m string --string "sipcli/" --algo bm --icase
iptables -A INPUT -j DROP -p tcp --dport 5060:5091 -m string --string "sipcli/" --algo bm --icase
iptables -A INPUT -j DROP -p udp --dport 5060:5091 -m string --string "VaxSIPUserAgent/" --algo bm --icase
iptables -A INPUT -j DROP -p tcp --dport 5060:5091 -m string --string "VaxSIPUserAgent/" --algo bm --icase
iptables -A INPUT -j DROP -p udp --dport 5060:5091 -m string --string "pplsip" --algo bm --icase
iptables -A INPUT -j DROP -p tcp --dport 5060:5091 -m string --string "pplsip" --algo bm --icase
iptables -A INPUT -j DROP -p udp --dport 5060:5091 -m string --string "system " --algo bm --icase
iptables -A INPUT -j DROP -p tcp --dport 5060:5091 -m string --string "system " --algo bm --icase
iptables -A INPUT -j DROP -p udp --dport 5060:5091 -m string --string "exec." --algo bm --icase
iptables -A INPUT -j DROP -p tcp --dport 5060:5091 -m string --string "exec." --algo bm --icase
iptables -A INPUT -j DROP -p udp --dport 5060:5091 -m string --string "multipart/mixed;boundary" --algo bm --icase
iptables -A INPUT -j DROP -p tcp --dport 5060:5091 -m string --string "multipart/mixed;boundary" --algo bm --icase
iptables -A INPUT -p tcp --dport 22 -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j ACCEPT
iptables -A INPUT -p tcp --dport 7443 -j ACCEPT
iptables -A INPUT -p tcp --dport 5060:5091 -j ACCEPT
iptables -A INPUT -p udp --dport 5060:5091 -j ACCEPT
iptables -A INPUT -p udp --dport 16384:32768 -j ACCEPT
iptables -A INPUT -p icmp --icmp-type echo-request -j ACCEPT
iptables -A INPUT -p udp --dport 1194 -j ACCEPT
iptables -t mangle -A OUTPUT -p udp -m udp --sport 16384:32768 -j DSCP --set-dscp 46
iptables -t mangle -A OUTPUT -p udp -m udp --sport 5060:5091 -j DSCP --set-dscp 26
iptables -t mangle -A OUTPUT -p tcp -m tcp --sport 5060:5091 -j DSCP --set-dscp 26
iptables -P INPUT DROP
iptables -P FORWARD DROP
iptables -P OUTPUT ACCEPT

#answer the questions for iptables persistent
echo iptables-persistent iptables-persistent/autosave_v4 boolean true | debconf-set-selections
echo iptables-persistent iptables-persistent/autosave_v6 boolean true | debconf-set-selections
apt-get install -y iptables-persistent

Um nun einen weiteren Port zu öffnen, musste ich nur den Befehl iptable ausführen

iptables -A INPUT -p tcp --dport 8000 -j ACCEPT

und speichern Sie die Regeln mit

sudo /sbin/iptables-save > /etc/iptables/rules.v4

Stellen Sie sicher, dass Sie es als Root ausführen, sonst erhalten Sie die Fehlermeldung „Zugriff verweigert“.

Falls ein Berechtigungsfehler auftritt, sollten Sie sudo su -die Regeln vor dem Speichern ausführen.

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