Concerned with software or hardware firewalls

learn more… | top users | synonyms (1)

2
votes
1answer
46 views

How To Find Out What Software is Trying to 'Phone Home'?

I have seen some suspicious outbound communications blocked on my VPS, which hosts a small experimental Web site, and am wanting to find out which application is making the attempt. The server is ...
2
votes
1answer
39 views

Blocking incoming traffic from privileged port (< 1024) to mitigate DNS DDos Amplification attacks

Hope someone can clarify. As I understand, in a DNS DDos Amplification attacks Multiple DNS queries are sent to a vulnerable name server with the source IP spoofed to that of the target server. The ...
2
votes
1answer
56 views

How to configure Suricata to not interfere with virtual machine

I'm currently planning on setting up Suricata as a firewall on my laptop. I'm wondering however if it's possible to set Suricata to not interfere with traffic to and from specific virtual machines ...
1
vote
1answer
133 views

VPN Client - Addtional Security Layer or a Useless Feature

I have a corporate web portal which is used for staff collaboration including a web-based mail interface connected to MySQL Database, corporate calendar, file storage, customer contacts data with ...
2
votes
0answers
77 views

Shorewall stopped policies - routeback

Here goes a very specific question about the insides of Shorewall and Iptables in general. Shorewall supports configuration of "Stopped Policies" using the file routestopped, which defines the ...
1
vote
0answers
84 views

Windows Firewall netsh equivalent of iptables u32 module

I have looked everywhere and I can't seem to find a netsh equivalent of the u32 module for iptables. I want to create a rule to Drop a packet that starts with a specific set of bytes. Similar to: # ...
1
vote
0answers
21 views

API deployment infrastructure

We are going to deploy our service, it's drupal based with some additional REST APIs. The drupal servers will be (loadbalanced) put in the DMZ. We think to deploy the REST APIs on an app server in ...
1
vote
0answers
87 views

Proxy via pfSense and exclusions for DNS

I have posted this to NetworkEngineering.SE, as that seems the more suitable audience for this question. I will leave this question open here but am happy to see it closed. I just did not want to ...
1
vote
0answers
30 views

Pf rules configuration

Do these rules appear to be an adequate start? _interface="en1" _linode="66.228.57.75" #lish-atlanta.linode.com _ssh=" { 74.207.224.182 66.175.210.225 } " set block-policy drop set skip on lo0 ...
1
vote
0answers
137 views

Throttling DropBox behind a firewall

Our office network bandwidth gets choked when an employee copies a large file into her DropBox, since it gets downloaded on several machines (of other employees). LAN Sync is an option, but needs to ...
1
vote
0answers
86 views

Why my proxy is still having some connections blocked

I am behind a firewall in France. I connect to proxy A, in Ireland with Dante via SSH port 22 and make a tunnel forwarding port 1080. The proxy works as expected but still having a port range ...
0
votes
0answers
26 views

Firewall best practice

I have to implement a firewall on a Mikrotik RouterBoard. What is a good way to do it? Here is my plan: Note: We are using an OpenVPN (bridge mode) server, a DHCP server, a PPPOE client, and an NTP ...
-1
votes
0answers
20 views

ACL implementation help

So I have network that looks like this: isp ->192.168.24.x - pix ^regional network(172.16.254.x)10.9.8.1 -> 10.9.8.254 asa -> local (172.16.1.x). So basically the pix has three interfaces, one ...