0
votes
2answers
37 views

Assign IPs to programs/processes

I need to assign different IP addresses to different processes (mostly PHP & Ruby programs) running on my Linux server. They will be making queries to various servers, including the situation ...
3
votes
1answer
306 views

What IP range do I ask the system administrator to open in order for S3 to work?

I've written some programs for Raspberry Pi, which some small companies have shown interest in. I sold pre-configured Raspberry Pi:s to them, with my program on them, and it works for everybody except ...
0
votes
1answer
26 views

allow machine to access localhost website

I've got some IP rules on an Azure VM, the first blocks all traffic, the second allows my laptop to access the website. Both work fine, however when I try to access a website hosted on the VM locally ...
1
vote
1answer
73 views

How many IP addresses can I expect to block on a Cisco 5500-X Series firewall?

Considering a Cisco ASA (5500-X) firewall for our internet edge in front of our web cluster. At the moment, we use a Linux box with iptables. A log analysis system detects brute-force attacks on ...
2
votes
1answer
54 views

Request to server x Reply from server y

I need some advice from you guys: I'm dealing with a custom loadbalancer/software for which we will use 2 main servers and about 8 slave servers. In short: User sends request to main server, main ...
1
vote
0answers
65 views

Wireless Bridging two Sonicwall Firewalls

We have two sites (essentially two small buildings side by side but we are unable to run CAT5 cable between them) which are currently linked via a wireless bridge. We will be splitting the sites so ...
0
votes
0answers
113 views

How to allow only a country on APF

How I can block all countries and just allow connections from IPs from Brazil to my server using APF? I've searched some ways but none are using APF at all. Some of them make me download a huge list, ...
2
votes
2answers
62 views

Cisco Network Object NAT to get Internet?

So I've inherited a Cisco ASA 5505, and I have no experience whatsoever with the things! There are two Network Interfaces both WAN facing, and the LAN interface of course. Now in NAT rules, there are ...
-2
votes
1answer
80 views

How do I find out the internal ip address of a router in front of a firewall

We have a network with a firewall and outside of the firewall the router to connect to the isp. How do I find out what the internal ip is of that router. I do know the external ip, our fixed ip, but I ...
0
votes
1answer
52 views

Multiple webservers behind firewall done correctly?

Basiclly I have a firewall and behind it i have a webserver which is a webportal for clients, a second webserver that hosts their webpages and a DNS server I want to route the traffic through that ...
0
votes
1answer
106 views

I cannot access my websites but everyone else can [closed]

About 4 days ago I could no longer view my websites from my IP address. I can see it through proxies and other IPs, everyone else sees it fine. I've contacted my host, they say I'm whitelisted and ...
0
votes
1answer
67 views

How to block access from all hosting services? (like gutenberg.org) [closed]

gutenberg.org blocks access to all hosting services as per http://www.gutenberg.org/error403.php How to achieve this? Is there a list of hosting ips? Also, would these be added to CSF?
0
votes
1answer
252 views

Vyatta change IP packet destination port on forward, based on source IP range

This might be really easy or really impossible - but any help would be great. I want to host a web server with multiple hosts on the same IP but different ports. This host will be routable to the ...
0
votes
0answers
122 views

Cannot reach website from one office using URL or IP

We have a client running DNS, DHCP, and Active Directory on a windows server 2003 machine. We recently moved an externally hosted website for them. After moving the site they cannot reach the site ...
0
votes
1answer
356 views

UDP packets to IP addresses other than specific ones not arriving and not shown in Wireshark

I'm writing a service using UDP, but I can't manage to reply to the client. When sending to the client via the DHCP-assigned IP (192.168.1.143) Wireshark shows no sent packets. The server receives ...
0
votes
4answers
100 views

How to I start with a remote IP address connected to my computer to the process that has opened the connection?

If I type "netstat", I can see a list of IP addresses that my PC is connected to. If I start with an IP address, how do I find the process that has opened the connection to said IP address?
1
vote
0answers
235 views

iptables dynamic NAT, SNAT: force overload on exhaustion

Is there a way to specify the use of iptables NAT'ing where you can use SNAT for a pool of outside addresses, but when the last IP is about to be used it is used as an overloaded outside IP? I ...
0
votes
3answers
2k views

Ubuntu only allow incoming access from 192.168.0.0/8 or server IP address

How can I make it that only approved IP addresses have access to my Ubuntu server 12.04 I only just set it up.
3
votes
6answers
2k views

How reliable are IP address-based firewall restrictions?

On some of my production systems that need to be accessible outside of the LAN I will sometimes add a firewall restriction at the edge to only permit traffic on, say, RDP from a specific origin IP ...
0
votes
1answer
1k views

IP Table, what does this construct mean ::INPUT ACCEPT [0:0]

I am looking at an IP Table construct, what does the following mean : :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] thanks
3
votes
1answer
622 views

iptables preroute localhost

I would like to forward all incoming traffic from a certain port to another one using iptables. The problem is that prerouting doesn't work for traffic from localhost. This topic suggests a solution: ...
-1
votes
2answers
1k views

I need to create a special rule on my firewall with all the IP addresses from Facebook (Akamai included)… where I can get those IPs? [duplicate]

Possible Duplicate: How to get all IP addresses of a domain? Need this data to create a special rule, and I need to know if they change frequently or not. Somebody told me that they have a ...
0
votes
1answer
313 views

Vyatta internet connection + hosted site on same IP

Having a small issue setting up a vyatta. The company internet and two different websites are both on the same IP. Server 1 - Has websites hosted on ports 1000 and 3000 and also has a proxy server ...
0
votes
1answer
181 views

Spoofing Packets?

I host a GameServer and some stupid guy just keeps attacking my Application server with random queries. I have found a solution to block it but he uses different kinds of queries so I have to block ...
3
votes
1answer
124 views

Identify where a port is blocked

I'm trying to find out where a port is being blocked by a firewall; either en-route to a host or by the host itself. If I run nmap I can see that the port is filtered. However, this could mean by the ...
0
votes
3answers
768 views

What is the IP of mail server behind firewall

I am trying to find out if i need and how to set up PTR in the mycompany.com zone for my mail server and I refer to this qoute from ...
0
votes
2answers
82 views

How to add firewall rule to a name and not get a performance hit?

I have an internal application sitting behind a firewall that has to FTP some files to uploads.google.com. I asked our network/sys admin to create a rule to allow it and they did, based on the IP of ...
1
vote
3answers
279 views

Problem with HTTP traffic being 'hijacked' by firewall

I'm experiencing a major head-ache at the moment with our company firewall, we're currently changing ISPs (new lease line and new block of static IPs) and I'm setting up firewall rules (we're using a ...
2
votes
3answers
1k views

How do I find out my host name and IP address on Ubuntu?

I know Windows has the ipconfig command to find out information about my host name and ip address. On Ubuntu I tried: tpconfig - was not installed on my machine iwconfig - did not give useful info ...
0
votes
1answer
1k views

which is the external firewall in my scenario below?

I got a public IP from the ISP and no port is blocked by the ISP. My server running on Windows Server 2008 R2 SP1 Web Edition Trial is connected directly to the ISP. In other words, I don't use a ...
1
vote
3answers
2k views

What could prevent one Amazon EC2 instance from pinging another instance's Private IP?

I have multiple Amazon EC2 instances which need to communicate using private IPs. However, so far I've been unable to ping one instance's private IP from another instance. I can ping external ...
1
vote
2answers
3k views

How can I setup a Firewall without NAT?

We have 16 IP addresses from our ISP, and are setting up a SonicWall Firewall. I'd like to have the SonicWall do NAT for the LAN, but act as a firewall only (no NAT) for the servers which are using ...
0
votes
2answers
74 views

Strange IP address behavior

We are having a strange behavior on our company network. From time to time a IP that is given out by the DHCP server "stops" working externally, internal network access is working and DNS lockups is ...
0
votes
5answers
343 views

Help me understand Public/Private IP space and NAT

I just started working at a small-medium sized business after graduating school. So much of my knowledge is high level concepts without a lot of hands on. My understanding that according to rfc1918 ...
1
vote
1answer
766 views

URL Based Internal Redirecting

Basically, we have one external IP address, several servers internally and want to redirect to each internal server based on request URL. We do not want to install another piece of hardware to do this ...
0
votes
1answer
5k views

Linux: how to configure a secondary IP address upon boot-up?

Greetings experts, I've configured a nice little linux firewall machine here. It's got eth1 for the internal network (10.0.0.*), and eth2 for the external network (65.130.27.69/27). eth0 is not ...
1
vote
2answers
1k views

I need an outside ip address on a device inside my network

I'm working with a company with the following network - AT&T DSL internet access through a Netopia 3347NWG router serving DHCP to about 25 workstations; 192.168.1.0/24. They're getting a ...
0
votes
5answers
692 views

Windows 2008 Firewall IP Range

I've got a port exception that I've added to Windows Firewall. And under Scope, I'm able to add specific IP addresses allowed, each separated by a comma. The problem is, how can I enter a range of ...