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Questions tagged [shorewall]

A higher level interface to Netfilter. Shorewall compiles its configuration files to rules that are applied through iptables/ip6tables.

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1answer
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+50

Shorewall - Allow Client to Ping Internet but Not Use the Browser or Port 80

My network address is 192.168.5.0. My host machine is 192.168.5.1 and my client machine is 192.168.5.2. How will I enable my client to ping the internet through the terminal but restrict it from ...
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0answers
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Shorewall is blocking everything. How to tweak it?

I had used old DIR-400 router for years, but now it starts hanging and have problems. So I thought to replace it with a 2-ports motherboard with linux onboard, to be able to tweak and run some ...
2
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1answer
223 views

Setting up Ubuntu Server router in VM using Netplan, Shorewall and DNSMasq - unable to access internet from internal network

I'm currently creating network based on Ubuntu Server. It's implemented as VM in VirtualBox and looks like this: Ubuntu Server - 3 network interfaces. 1st - enp0s3, internet connection. 2rd - ...
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0answers
219 views

Determine if an uplink interface is usable

I have a firewall system that is served by two uplinks to different ISPs. I'm using shorewall to manage the firewall; it load-balances traffic over both interfaces with connection tracking. All that ...
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3answers
826 views

Setting up two ADSL lines for home/business use

As a follow-up to this question which is still unresolved. I have two ADSL routers with different providers connected to different phone lines to the internet. As shown in the diagram. These routers ...
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1answer
9k views

What range of UDP ports may rtsp use, to configure a firewall?

To allow incoming rtsp streams, I must open incoming TCP port 554. I must also open a range of UDP ports. 6970 through 6999, says http://comments.gmane.org/gmane.comp.security.shorewall/660 . At ...
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0answers
284 views

Public - Private networks behind NAT Modem using OpenVPM – Shorewall

I have been asked to configure a firewall between the public and private parts of a network for a small UK charity. The only imposed requirements is that the firewall must allow access using VPN into ...
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2answers
1k views

Weird slow uplink problems on my home Debian router and new fast connection

Yesterday I got a new and shiny VDSL2 connection home! It's specced at 100Mbit/10Mbit, and seems to deliver pretty close to the mark. Now, I have a Debian squeeze linux box acting as a home NAS and ...
2
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1answer
1k views

Use Shorewall to port-forward requests based on the domain requested to different servers

How can I get my firewall to port forward traffic that is comming into different domain to different servers. So I have two web servers. Each one hosts different domains on different servers/IP: ...
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1answer
4k views

Ubuntu 11.10 firewall/gateway - no client internet access

I have read many other posts but cannot figure this out. eth0 is my external connected to a Comcast modem. The server has internet access with no issues. eth1 is internal and running DHCP for the ...