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Thread: Howto: Set up Ubuntu as a firewall/gateway router with webmin

  1. #41
    Join Date
    Mar 2010
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    1

    Wink Re: Howto: Set up Ubuntu as a firewall/gateway router with webmin

    Great post.
    It worked for me, had some problems changing sysctl.conf (permision denied), solved and it's ok.
    Thanks.

  2. #42
    Join Date
    Feb 2010
    Location
    California
    Beans
    244
    Distro
    Ubuntu 8.10 Intrepid Ibex

    Re: Howto: Set up Ubuntu as a firewall/gateway router with webmin

    thanks again Sammy! I gave you some Props in my guide i am making, you were a ton of help.
    http://woodel.com
    Last edited by kevinthecomputerguy; June 24th, 2010 at 01:29 AM.

  3. #43
    Join Date
    Dec 2008
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    4

    Lightbulb Re: Howto: Set up Ubuntu as a firewall/gateway router with webmin

    Hi sammydee,
    I thank you for a different reason,

    in few simple examples and words you gave me a better and sharper idea of the iptables logic.

    Cheers
    Robert

  4. #44
    Join Date
    Oct 2006
    Location
    India, Chennai, Mylapore
    Beans
    268
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Howto: Set up Ubuntu as a firewall/gateway router with webmin

    Fantastic HOWTO
    Thank you
    Regards,
    Abhi Kalyan
    http://www.kgsplus.com

  5. #45
    Join Date
    Oct 2011
    Beans
    1

    Re: Howto: Set up Ubuntu as a firewall/gateway router with webmin

    Thnaks for all de documentation! ! Ill start from here. Very usefull! !

  6. #46
    Join Date
    Oct 2010
    Beans
    19

    Re: Howto: Set up Ubuntu as a firewall/gateway router with webmin

    At the beginning you said that 2 network cards are needed. I am new to a lot of networking ideas. So my question is as follows: 1 my desktop has the lan port on the motherboard, and then has a NIC installed. Will this work as the two network cards or, do they both actually have to be cards? 2. My desktops and laptops are currently windows, will this throw up any issue with setting up a ubuntu firewall?

  7. #47
    Join Date
    Nov 2011
    Beans
    1

    Re: Howto: Set up Ubuntu as a firewall/gateway router with webmin

    Quote Originally Posted by Rihoj View Post
    At the beginning you said that 2 network cards are needed. I am new to a lot of networking ideas. So my question is as follows: 1 my desktop has the lan port on the motherboard, and then has a NIC installed. Will this work as the two network cards or, do they both actually have to be cards? 2. My desktops and laptops are currently windows, will this throw up any issue with setting up a ubuntu firewall?
    Rihoj, of course your built-in motherboard lan is counted as network cards. i used same setup in my router-server (i used 4 card thought). well, for the windows issue, your desktop need to be reinstalled with ubuntu server. i never know of a successful of a headless router-server using windows.

    windows should be used to for ventilation. not for an OS. lol.

  8. #48
    Join Date
    Aug 2005
    Location
    Norfolk, UK
    Beans
    373
    Distro
    Ubuntu Gnome 13.10 Saucy Salamander

    Re: Howto: Set up Ubuntu as a firewall/gateway router with webmin

    The DCHP part of the guide doesn't work any more.

    In ubuntu 12.04 the DCHP webadmin module isn't correctly configured.

    Have some of the paths/names changed?

    The DCHP module works if you set the following paths:
    Code:
    DHCP server config file	- /etc/dhcp/dhcpd.conf 
    DHCP server executable	- /usr/sbin/dhcpd
    Command to start DHCP server - /etc/init.d/isc-dhcp-server start
    Command to apply configuration	-  /etc/init.d/isc-dhcp-server restart
    Command to stop DHCP server	- /etc/init.d/isc-dhcp-server stop
    Path to DHCP server PID file	- /var/run/dhcp-server/dhcpd.pid 
    DHCP server lease file	- /var/lib/dhcp/dhcpd.leases
    The problem i'm getting is that I follow all the steps to create the subnet and can even see in the logs that I created a subnet, yet the module says "No subnets or shared networks have been defined.
    "
    Last edited by c-m; December 28th, 2012 at 02:10 PM.

  9. #49
    Join Date
    Aug 2011
    Beans
    9

    Thumbs up Re: Howto: Set up Ubuntu as a firewall/gateway router with webmin

    Thank you Sammydee, you saved me a lot of headache !!! great tutorial

  10. #50
    Join Date
    Feb 2009
    Beans
    11

    Re: Howto: Set up Ubuntu as a firewall/gateway router with webmin

    Hello @sammydee, Thanks for your nice howto. But I'm stuck at Configuring DHCP client options.
    eth0 and eth1 not listed! how do I select it?





    Code:
    mint@mint ~ $ ifconfig -a
    eth0      Link encap:Ethernet  HWaddr 90:2b:34:7c:5e:3f  
              inet6 addr: fe80::922b:34ff:fe7c:5e3f/64 Scope:Link
              UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
              RX packets:10363 errors:0 dropped:0 overruns:0 frame:0
              TX packets:3 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:1000 
              RX bytes:639741 (639.7 KB)  TX bytes:258 (258.0 B)
    
    eth1      Link encap:Ethernet  HWaddr 00:05:5d:42:ba:97  
              inet6 addr: fe80::205:5dff:fe42:ba97/64 Scope:Link
              UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
              RX packets:35396 errors:0 dropped:265 overruns:0 frame:0
              TX packets:9699 errors:0 dropped:0 overruns:3 carrier:0
              collisions:0 txqueuelen:1000 
              RX bytes:10886166 (10.8 MB)  TX bytes:1311228 (1.3 MB)
    
    lo        Link encap:Local Loopback  
              inet addr:127.0.0.1  Mask:255.0.0.0
              inet6 addr: ::1/128 Scope:Host
              UP LOOPBACK RUNNING  MTU:16436  Metric:1
              RX packets:2693 errors:0 dropped:0 overruns:0 frame:0
              TX packets:2693 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:0 
              RX bytes:544253 (544.2 KB)  TX bytes:544253 (544.2 KB)
    
    ppp0      Link encap:Point-to-Point Protocol  
              inet addr:10.44.51.68  P-t-P:20.20.230.254  Mask:255.255.255.255
              UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1492  Metric:1
              RX packets:8495 errors:0 dropped:0 overruns:0 frame:0
              TX packets:9514 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:3 
              RX bytes:7598052 (7.5 MB)  TX bytes:1085412 (1.0 MB)
    Last edited by Badhon_raj; May 23rd, 2013 at 09:06 AM.

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