A firewall is a piece of software that controls what connections can be made to and from a network.

learn more… | top users | synonyms

0
votes
0answers
65 views

Why CSF blocking all traffic?

I've installed CSF firewall with Directadmin. when the firewall is running, it blocks all the incoming and outgoing connections. My iptables -L -n: Chain INPUT (policy DROP) target prot opt ...
0
votes
0answers
40 views

csf (config server firewall) with nginx

I am looking into various web server solutions, and have come down to nginx and apache; I'm fairly ok with the technical differences and the pros/cons of each and if it was just down to that I would ...
0
votes
0answers
22 views

SonicWall firewall setting up RDP

I want to setup an RDP connection from the outside into my network I have a SonicWall NSA 220 what is the process involved? How secure is this option? are their other options available to this device ...
0
votes
0answers
23 views

How to log HTTPS traffic

I want to log https traffic of my network without loosing certificates trusts and without a proxy. I need to log "only" source ip, remote hostname and data traffic amount. Should be easy to get ...
0
votes
0answers
42 views

Exporting raw data of Checkpoint Firewall

I am looking to export a Checkpoint configuration to a Excel document (HTML or XML would also work). However, one requirement is to have the configuration showing the rule base with IPs ONLY (no ...
0
votes
0answers
94 views

Windows firewall rule order?

I'm trying to setup Windows Firewall to allow all traffic except a large list of IP ranges connecting to/from a specific application. For testing, I set up two rules: Allow all traffic (no ...
0
votes
0answers
46 views

how do I establish whether Glassfish is ready or not to accept JMS connections?

Working from a sample producer, which uses gtools, and by changing the connection parameters from localhost to the ip address for doge: def jms = new ...
0
votes
0answers
31 views

rsyslog loses messages from firewall

I am trying to make rsyslog to log messages from iptables MASQUERADE. I have iptables LOG rule in nat table and PREROUTING chain before the MASQUERADE rules. The actual iptables rules: iptables -t ...
0
votes
0answers
53 views

Is there any way to setup port forwarding with a 3G network on a Huawei E303 modem?

I have a problem with my connection. I am using 3G Etisalat SIM in dongle to access the Internet. I can not play games online. Whenever I enter into a server of multiplayer games I gets an error your ...
0
votes
0answers
21 views

Why can't my virtual machine reach the host?

After creating the appropriate rule in Windows firewall, I can ping my host machine from the VM: demo@ubuntu:~/aenea/server/linux_x11$ ping 192.168.85.1 PING 192.168.85.1 (192.168.85.1) 56(84) bytes ...
0
votes
0answers
50 views

In which order firewalld rules are executed in RHEL-7?

Every time rich rule gets different order of display but execution is same. How can i set my own execution order for it? So that particular rule will be executed after the desired one? ...
0
votes
0answers
70 views

How to make netstat on Linux only show OUTBOUND tcp connetions?

My Ubuntu server is infected and there is a process making a bunch of HTTP requests to a bunch of websites. I have added the following to my firewall (UFW): sudo ufw deny out proto tcp to any port ...
0
votes
0answers
28 views

If nmap reports a port is open, does that ALSO mean a service is listening on the port?

I have a Thompson TG585v7 router/firewall whose firewall is configured to FORWARD several ports to a computer X54 within the LAN. These ports are in the range 1024 through to 2500 That X54 ...
0
votes
0answers
53 views

Eset Smart Security Personal Firewall crashes with a bluescreen

When I plug my internet cable in computer, the computer goes to BSOD and says UNEXPECTED_KERNEL_MODE_TRAP. I am sure it is due to Eset Smart Security 8 Personal Firewall Because of when I ...
0
votes
0answers
15 views

How to diagnose unconnectable port from client side?

I have a machine that can't connect to a certain port number on a server. I've disabled all firewalls and security software. It can connect just fine to 80 and 443, but not 7777. Is there a tool or ...
0
votes
0answers
85 views

Open ports with iptables — still closed

I'm trying to open some ports for a gameserver, which is running on my Linux vServer (Ubuntu 14.04 LTS 64bit). The game needs the following ports: 16261 (UDP) 16262 (TCP) // Player 1 16263 (TCP) // ...
0
votes
0answers
61 views

pfsense for its firewall capabilities on small network

I have a small home network of approximately 3 windows machines and 1 pfsense freeBSD (dell laptop): q1. The cable modem is connected to the NON-internet port of the wireless router. Is this the ...
0
votes
0answers
21 views

Windows Firewall Troubleshooting

I can't seem to successfully allow traffic on specific ports. I've setup an FTP server (IIS). Windows 8.1 x64. I've tested it, and it works fine when I disable Windows Firewall. But when I enable ...
0
votes
0answers
7 views

VPN Connections and web timeouts

We've got a VPN connection to our office. From our office, we have access to a clients test website by their network firewall allowing traffic from our firewall/network. If I am at the office, I can ...
0
votes
0answers
74 views

Apache Spark cluster through a proxy?

This is more a speculative question to those with more networking / Apache Spark experience than me. My current setup: two 32GB, 4GHz Core i7 machines I'd love to tie into a Spark cluster. However, ...
0
votes
0answers
13 views

Publis camera server behind not public ip

i have a internet cable service so i have a private ip. Because of this i cant publish my security camera web aces (ports 1053,1030). Is there some way to "tunnel" this service using some other tool ...
0
votes
0answers
79 views

Mikrotik Netmap to Windows server 2008

I have Mikrotik RouterBoard RB2011UIAS-2HND-IN as my router and Windows Server 2008 as DC. I want users outside local network be able to connect our chat server placed on Windows Server. Chat server ...
0
votes
0answers
43 views

ASA Cisco VPN Connection drop when user switch is attached

Have established a VPN connection (albeit over satellite) between a Cisco ASA 5505 (running IOS 8.2(2) and the mother ship in the U.S. Firewall issues DHCP to internal interface users and the inside ...
0
votes
0answers
32 views

Windows Firewall - How can I have multiple public profiles, or multiple private profiles, with different rules?

Windows firewall only seems to have a few options for profiles. Your public, private, and domain profile. What if you want to have 2, or even 3 private profiles though because you move around to ...
0
votes
0answers
35 views

Cannot unblock Windows firewall port for specific program

I am developing a custom server application hosting HTTP (though not HTML) requests on port TCP 5123. If I add a Windows firewall rule to allow incoming connections to this port for any program then ...
0
votes
0answers
102 views

How to easly block user from using surfeasy VPN

Does any one know if its possible to block user from using using surfeasy VPN to download pirate movies from the internet?
0
votes
0answers
77 views

port forward from wan to lan

How to create rule to forward all incoming 80 -port traffic from public IP address to another server in the LAN via Ubuntu linux firewall (using webmin). Server have two IP addresses public and ...
0
votes
0answers
116 views

Windows 7 ports Blocked even after disabled Firewall

    I am installing 3CX PBX on a Win 7 Pro Machine, in a SBS2011 domain. The problem I am facing is the Ports that 3CX uses are blocked. This Windows 7 , is VM in XenServer 6.2 ...
0
votes
0answers
125 views

Firewalld - allowing ICMP in custom zone (centos 7 / redhat 7)

I want to enable ICMP echo-reply in a zone defined by source. I have a zone MONITORING where I want to permit some services like mysql and echo-reply. Permiting services like mysql is simple, but I ...
0
votes
0answers
33 views

How to portforward in Tenda TEI480T+

I just want to ask if anyone has a tenda router TEI480T+ dual wan. I have a problem regarding in portforwarding (virtual server in this router) because even I already added the IP address of the PC ...
0
votes
0answers
23 views

Always allow a program to act as a server

I'm coding some small application. Basically it listens for incoming tcp connections. I always get this screen: I always press the accept/allow button but it keeps asking every time I start the ...
0
votes
0answers
96 views

Disabling SPI and QOS on my router for another feature?

Well, I purchased a D-LINK DIR-655 model C router and I really like it so far. The only issue I have is that there is a function called "True Gigabit Routing Connectivity" that does this When this ...
0
votes
0answers
112 views

Firewall is blocking packets for hMailServer

I installed hMailServer on a Windows 7 (SP1) machine for mail delivery only inside a local network. After configuring a pair of mailboxes, I also configured a Thunderbird client in the same machine ...
0
votes
0answers
57 views

What settings are required for VMware Workstation shared VMs to be accessible with ZoneAlarm Free Firewall installed?

I have Workstation 11 installed on a Win 8.1 Pro system. I just installed ZoneAlarm Free Firewall 2015 and now can no longer access my locally shared VMs, either from the machine they are installed on ...
0
votes
0answers
73 views

Cannot open port 25565 and others

I try to open my Minecraft server and my gmod server ports. Now I only try Minecraft and I tried to open in 192.168.1.1 in Windows firewall. I went to this site: ...
0
votes
0answers
66 views

Which ports to open in order to access a Windows Server 2008 shared drive through VPN?

There are two servers, A and B. The networks of those servers are connected through VPN. Each network is protected by a firewall and all ports are blocked. I am the owner of server A, and ...
0
votes
0answers
49 views

Ports not opening correctly

I am trying to open up ports to run a program but it won't work. I am trying to open up port 80 for testing, but even that didn't work. Here are the steps I'm going through. Open windows firewall, ...
0
votes
0answers
30 views

Connect 2 Networks and restrict acces

The Setting: 2 apartments where each has it's own internet connection over an AVM Fritz!Box. I'd like to connect both apartments with a network cable. In apartment 1 is a NAS wich should be ...
0
votes
0answers
76 views

How to debug “SIP registration failed”?

My SIP phone, which I use from Turkey with a virtual UK number, has recently stopped working with "SIP registration failed" and the supplier of the UK number has told me the times of the last ...
0
votes
0answers
60 views

Route Windows application to specific network interface

I have two connections (one wired, one wireless, if relevant). One connection passes thru a proxy (which is not under my control) and is domain controlled. The other is a simple wireless connection ...
0
votes
0answers
93 views

Connections from virtual host to internet OK, but to rest of LAN, broken

In a notebook running Ubuntu 14.04 I have installed VirtualBox and created a virtual server with Windows 7. The PC is connected to a 192.168.x.y LAN. The virtual server is in a host-only network with ...
0
votes
0answers
261 views

iptables snat does not change source IP

I am on ubuntu (with IP 10.0.0.1) trying to snat packets going out from port 9090. I want to change the source IP to 10.0.0.2 I have added the following rule through iptables: # iptables -t nat -A ...
0
votes
0answers
165 views

Settings for printing remotely over the internet to HP Laserjet from one IP address

I'm trying to print from an Amazon/AWS EC2 instance running WinServer 2008 R2 to an HP Laserjet on our network. These are the steps taken so far: On EC2, the server services ‘LPR Port Monitor’ and ...
0
votes
0answers
59 views

iptables do not block all traffic i want to mysql port

Need to block all incoming traffic to port 3306 but two ranges. The thing is I can connect from other ranges anyway!. Think my drop rule is ok. Why is this? ]# iptables-save # Generated by ...
0
votes
0answers
118 views

Open firewall port on Mac OS X

I need to open port 8181 on my Mac OS X. On Linux, I would do: iptables -t filter -A INPUT -p tcp --dport 1664 -j ACCEPT iptables -t filter -A OUTPUT -p tcp --dport 1664 -j ACCEPT How do I do this ...
0
votes
0answers
391 views

License Manager for Matlab is unable to connect to the license server. License Manager Error 96

I am using Matlab R2014a. The license has been provided by the college. As soon as I launch the software, I get a following error message. I tried to ping the server addresses, and the were ...
0
votes
0answers
18 views

Making a server “read only” except for me (what the inbound/outbound rules mean)

I have an ec2 instance. It will start a webserver, and my public ip is myip. I ssh into my machine. What should incoming and outgoing rules? Why? I want only my ip to be able to change things on the ...
0
votes
0answers
19 views

Database showing a list of current vulnerabilities?

I have been recently building my own firewall, but I was wondering is there a website or database which lists majority of the known vulnerabilities so I could obviously update my firewall based on the ...
0
votes
0answers
15 views

vSphere Directpath NIC isolation

I am building an home server, and I am planning to use VMWare vSphere to create multiple OS that will have precise tasks on the server. On the server, I'd like to have a firewall-antivirus using ...
0
votes
0answers
521 views

Can't telnet to port 3389 on computer on same network

I have two Windows 8.1 pro computers on the same network using the same FIOS router. On the first computer, I can telnet to localhost 3389. On the second computer, I can't telnet to the first's IP ...