NGINX & Webmin

[FrankM]

Kurz mal was Testen System ist ein Buster-minimal vom Kamil. Auf Debian 10.1 aktualisiert.

Installation Webmin

404 Not Found

(doxfer.webmin.com)

NGINX Module

Using Webmin Module to Manage nginx Sites on EasyEngine •

Using Webmin Module to Manage nginx Sites on EasyEngine and other systems for WordPress or any CMS to easily modify and enable or disable virtual hosts

WP Bullet Guides (guides.wp-bullet.com)

Nginx Webmin Module | Justin D Hoffman

This project aims to give a user interface to those wishing to update nginx settings through webmin and to use nginx to server up some pages. Sometimes it's faster to not use the command line to fix everything or set up a new site. With this webmin module you'll be able to work on your nginx server from webmin.

(www.justindhoffman.com)

Danach bekam ich eine 500er Fehlermeldung. Irgendwas mit

perl missing HTML::Entities

Danach

rock64@rockpro64:~$ sudo cpan
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
	LANGUAGE = (unset),
	LC_ALL = (unset),
	LANG = "de_DE.UTF-8"
    are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
Loading internal logger. Log::Log4perl recommended for better logging

CPAN.pm requires configuration, but most of it can be done automatically.
If you answer 'no' below, you will enter an interactive dialog for each
configuration option instead.

Would you like to configure as much as possible automatically? [yes] yes


Autoconfiguration complete.

commit: wrote '/root/.cpan/CPAN/MyConfig.pm'

You can re-run configuration any time with 'o conf init' in the CPAN shell
Terminal does not support AddHistory.

cpan shell -- CPAN exploration and modules installation (v2.20)
Enter 'h' for help.

cpan[1]> install HTML::Entities
Fetching with HTTP::Tiny:
http://www.cpan.org/authors/01mailrc.txt.gz
Reading '/root/.cpan/sources/authors/01mailrc.txt.gz'
............................................................................DONE
[...........gekürzt...............]

Danach läuft ein riesiges Script und ich habe keine Ahnung was das so alles veranstaltet.

Nach einer Neuinstallation entdeckt, das man die Perl Module auch über das Webinterface installieren kann.

Danach kann man den NGINX über Webmin administrieren.

[FrankM]

Danach die Firewalld in Betrieb nehmen

sudo apt install firewalld

Es werden Standard Rules geladen, die einem aus dem Webmin Interface rauswerfen.

rock64@rockpro64:/var/www$ sudo iptables -L
Chain INPUT (policy ACCEPT)
target     prot opt source               destination         
ACCEPT     all  --  anywhere             anywhere             ctstate RELATED,ESTABLISHED
ACCEPT     all  --  anywhere             anywhere            
INPUT_direct  all  --  anywhere             anywhere            
INPUT_ZONES_SOURCE  all  --  anywhere             anywhere            
INPUT_ZONES  all  --  anywhere             anywhere            
DROP       all  --  anywhere             anywhere             ctstate INVALID
REJECT     all  --  anywhere             anywhere             reject-with icmp-host-prohibited

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination         
ACCEPT     all  --  anywhere             anywhere             ctstate RELATED,ESTABLISHED
ACCEPT     all  --  anywhere             anywhere            
FORWARD_direct  all  --  anywhere             anywhere            
FORWARD_IN_ZONES_SOURCE  all  --  anywhere             anywhere            
FORWARD_IN_ZONES  all  --  anywhere             anywhere            
FORWARD_OUT_ZONES_SOURCE  all  --  anywhere             anywhere            
FORWARD_OUT_ZONES  all  --  anywhere             anywhere            
DROP       all  --  anywhere             anywhere             ctstate INVALID
REJECT     all  --  anywhere             anywhere             reject-with icmp-host-prohibited

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination         
OUTPUT_direct  all  --  anywhere             anywhere            

Chain INPUT_direct (1 references)
target     prot opt source               destination         

Chain INPUT_ZONES_SOURCE (1 references)
target     prot opt source               destination         

Chain INPUT_ZONES (1 references)
target     prot opt source               destination         
IN_public  all  --  anywhere             anywhere            [goto] 

Chain FORWARD_direct (1 references)
target     prot opt source               destination         

Chain FORWARD_IN_ZONES_SOURCE (1 references)
target     prot opt source               destination         

Chain FORWARD_IN_ZONES (1 references)
target     prot opt source               destination         
FWDI_public  all  --  anywhere             anywhere            [goto] 

Chain FORWARD_OUT_ZONES_SOURCE (1 references)
target     prot opt source               destination         

Chain FORWARD_OUT_ZONES (1 references)
target     prot opt source               destination         
FWDO_public  all  --  anywhere             anywhere            [goto] 

Chain OUTPUT_direct (1 references)
target     prot opt source               destination         

Chain IN_public (1 references)
target     prot opt source               destination         
IN_public_log  all  --  anywhere             anywhere            
IN_public_deny  all  --  anywhere             anywhere            
IN_public_allow  all  --  anywhere             anywhere            
ACCEPT     icmp --  anywhere             anywhere            

Chain IN_public_log (1 references)
target     prot opt source               destination         

Chain IN_public_deny (1 references)
target     prot opt source               destination         

Chain IN_public_allow (1 references)
target     prot opt source               destination         
ACCEPT     tcp  --  anywhere             anywhere             tcp dpt:ssh ctstate NEW,UNTRACKED

Chain FWDI_public (1 references)
target     prot opt source               destination         
FWDI_public_log  all  --  anywhere             anywhere            
FWDI_public_deny  all  --  anywhere             anywhere            
FWDI_public_allow  all  --  anywhere             anywhere            
ACCEPT     icmp --  anywhere             anywhere            

Chain FWDI_public_log (1 references)
target     prot opt source               destination         

Chain FWDI_public_deny (1 references)
target     prot opt source               destination         

Chain FWDI_public_allow (1 references)
target     prot opt source               destination         

Chain FWDO_public (1 references)
target     prot opt source               destination         
FWDO_public_log  all  --  anywhere             anywhere            
FWDO_public_deny  all  --  anywhere             anywhere            
FWDO_public_allow  all  --  anywhere             anywhere            

Chain FWDO_public_log (1 references)
target     prot opt source               destination         

Chain FWDO_public_deny (1 references)
target     prot opt source               destination         

Chain FWDO_public_allow (1 references)
target     prot opt source               destination    

Lösung: https://doxfer.webmin.com/Webmin/FirewallD

Ein

 rock64@rockpro64:/var/www$ sudo firewall-cmd --reload
 Error: COMMAND_FAILED: '/usr/sbin/ebtables-restore --noflush' failed: 
 line 3: CHAIN_USER_DEL failed (Device or resource busy): chain PREROUTING_direct
 line 3: CHAIN_USER_DEL failed (Device or resource busy): chain POSTROUTING_direct
 line 3: CHAIN_USER_DEL failed (Device or resource busy): chain OUTPUT_direct
 line 7: CHAIN_USER_DEL failed (Device or resource busy): chain INPUT_direct
 line 7: CHAIN_USER_DEL failed (Device or resource busy): chain OUTPUT_direct
 line 7: CHAIN_USER_DEL failed (Device or resource busy): chain FORWARD_direct.

brachte aber nur Probleme!?

Ein Reboot löste das Problem. Aber, das ist ein wenig unbefriedigend, da muss ich nochmal ran....

[FrankM]

Das was da oben steht über Firewalld, ganz schnell vergessen. Das brauchen wir nicht, hat auch nur Probleme gemacht....

Man kann ganz normal mit iptables arbeiten, man sollte schon mal eine Firewall konfiguriert haben, das macht es etwas einfacher.

Kurzer Test, ob das so klappt wie erwartet.

frank@debian:~$ nmap 192.168.3.6
Starting Nmap 7.70 ( https://nmap.org ) at 2019-10-13 19:57 CEST
Nmap scan report for 192.168.3.6
Host is up (0.0011s latency).
Not shown: 996 filtered ports
PORT      STATE  SERVICE
22/tcp    open   ssh
80/tcp    open   http
443/tcp   closed https
10000/tcp open   snet-sensor-mgmt

Das hier sind aktuell die Regeln.

root@rockpro64:~# iptables-legacy -L
Chain INPUT (policy DROP)
target     prot opt source               destination         
ACCEPT     tcp  --  anywhere             anywhere             tcp multiport ports ssh
ACCEPT     tcp  --  anywhere             anywhere             tcp multiport ports webmin
ACCEPT     tcp  --  anywhere             anywhere             tcp multiport ports http
ACCEPT     tcp  --  anywhere             anywhere             tcp multiport ports https

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination         

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination  

Wenn ich das so die ganze Zeit teste, dann zweifel ich immer daran, ob solche Tools(Webmin) irgend einen Vorteil haben!? Mir macht das mittlerweile mehr Arbeit, als wenn ich das alles schnell eben auf der Konsole erledige. Vielleicht bin ich auch nur mittlerweile zu weit weg, von grafischen UI. Ich gebe dem Webmin aber noch ein paar Tage, gibt noch ein paar Sachen zu entdecken.