Uncomplicated Firewall (ufw)

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UFW for OpenVPN

I want to configure ufw (uncomplicated firewall) for OpenVPN. Connections are only allowed through OpenVPN. Everything else should be blocked. So if OpenVPN is disconnected -> no internet! I found ...
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513 views

What do these lines in the UFW logfile mean?

These lines are repeated several times, first one at the time when remote ssh connection with the machine is lost (mac address is the address of eth used for Internet connection) Mar 24 21:20:32 ...
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1k views

Why is UFW blocking outgoing connections?

UFW is blocking some outgoing connections on my server, such as Akismet, the spam killing plugin for my Wordpress site. According to Akismet's firewall info I need to allow contact with four IPs. My ...
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ufw - How can I open up a port to a range of ip's (UB 14.04)

i wonder if you can help me. I want to open up a specific range of ips to port 22, e.g from 32.46.23.113 to 32.46.23.126, how would I do this with UFW? I've had a look at subnet masking and have seen ...
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2k views

SSH connections rejected after UFW allow 22

I am trying to setup UFW on a 12.04 server. SSH works great with UFW off. Setting root@ugvps:~# ufw enable Firewall is active and enabled on system startup root@ugvps:~# ufw status Status: active ...
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441 views

Why does UFW seem to slow down wordpress?

I have a speedy install of wordpress going on ubuntu 12.04. Everytime i enable the UFW firewall, things can get really slow. Sometimes fast, sometimes slow, intermittently. Logging on through ssh ...
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20 views

Transmission not downloading due to ufw

I set up ufw and it works nicely with every other service I have but Transmission is a mystery to me. It seems to start up and use different ports every time. Currently I've managed to get it to work ...
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20 views

Gufw fails to control ufw

ufw is 0.34 gufw is 15.10.0 As title says it is not possible to control the active status of ufw through gufw: sudo ufw status Status: Inaktiv start gufw, enter root passwort to authenticate. ...
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129 views

UFW is blocking “gvfsd-smb-browse” on changing ports

I have a problem connecting to the samba shares between two of my computers. One is a Laptop and the other a Destop-PC, both running Ubuntu-Gnome 15.10. It changes from which Computer I can connect to ...
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119 views

What's the purpose of economy.canonical.com?

I noticed that in one of my server's /var/log/ufw.log this morning that the firewall had blocked the IP address 91.189.91.23 from accessing port 80. This occurred 9 times within about a minute and a ...
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400 views

Why can't I connect to my localhost port from a remote computer?

I'm using link-grammar server to convert sentences into semantic graphs. It provides an API though a port to do the above process. It's configured to works through port 9000 of localhost. I used to ...
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80 views

Is this ufw configuration correct?

I have to link my openstack private cloud on a cloud management platform online. The cloud location is on my private ip (192.168.0.9) , i can't use that ip since the platform need a public ip so i ...
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72 views

What is UFW's approach towards rules order for overlapping rules?

I need to enable UFW in my Ubuntu 14.04 Server having these conditions: - I want to deny all incoming and outgoing on all ports (and protocols) but: - I want to allow all incoming and outgoing on a ...
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164 views

problem with UFW

Following this tutorial I executed the following commands: sudo apt-get install ufw sudo ufw allow ssh sudo ufw allow http sudo ufw enable sudo ufw status verbose and I get: Status: ...
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527 views

Why aren't these ufw rules working?

I'm trying to configure ufw to only allow connections to 3 ip addresses on my local network, and deny everything else. Here's the commands I'm using: yes | sudo ufw reset sudo ufw default deny sudo ...
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2k views

Ubuntu UFW init failure

I have some strange UFW behaviour. Whenever I install it cleanly and add some allowed ports to it (without restarting) it works great. But when I restart UFW or the whole server for the first time ...
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208 views

Configuring ufw and iPredator VPN

I am running a VPN via IPredator on Ubuntu 12.04 Desktop, which works perfectly, when ufw is disabled. When I enable ufw, I logically cannot establish a connection. IPredator states that I have to ...
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144 views

Google Talk > Gufw set to Deny/Deny does BLOCK. Please help

I have my Ubuntu 12.04 Server. I installed Google Talk in it. I opened gufw, and set it to deny/deny and there are no allow rules. Now firefox wont connect to the internet which is good... But... ...
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653 views

UFW Firewall Rules, has a hole in it. Please help

Can someone please look at the below output for me. I have my UFW on deny/deny, and here are the rules. But if I leave my Ubuntu Server on, with a Windows XP VM, and let Instant Messenger run in the ...
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14 views

GUFW limit access to websites

Do anyone know how I can limit access to certain websites during specific hours of the day using GUFW? If GUFW do not have this ability, what can I use instead to achieve this function?
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14 views

Adding ufw rules during a preseeded installation

I've been trying to automatically add UFW rules to allow SSH access during an installation of 16.04 while using a preseed file. However, none of the documented methods result in port 22 being open ...
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37 views

How can I set up a VPN server using L2TP over IPsec with strongswan and ufw?

I'm having lots of trouble getting strongswan and L2TP to work. I'm also having lots of trouble finding a relevant and accurate guide for how to set it up. Would someone please provide a good ...
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15 views

VPN HideMy_SS Connection Issue

I've spent more than a few hours searching through forums, and contacting HMA support, a bit useless in this case. Anyways, here are my observations. If UFW / GUFW is enabled with all inbound and ...
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ufw to be enabled by default?

The 'Ubuntu Security Features' page [ https://wiki.ubuntu.com/Security/Features ] states : "Configurable Firewall. ufw is a frontend for iptables, and is installed by default in Ubuntu (users must ...
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30 views

Easiest way to forward a port on local network

I have a server (python -m http.server) running on hostA:8000. Say I want to forward traffic from hostB:8004 to hostA:8000 How can I achieve that from hostB? I've already tried, $ sudo ufw allow ...
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34 views

Printing with UFW

I have just set up a print server using CUPS and Avahi to allow printing from iOS devices on my home server. I have UFW set up to block all traffic that isn't on my VPN or over LAN. I have even set up ...
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34 views

How to make ufw allow only connections from outside lan

I am setting up a server at home from an old pc with ubuntu, and would like to "separate" it from my local network by configuring the firewall to allow only connections from outside my lan. I found a ...
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53 views

UFW not opening port

Could someone explain why I can't open port 64738? I opened it with sudo ufw allow 64738 But when I test with nmap, the port is still closed. > sudo ufw status Status: active To ...
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42 views

ufw allow from 10.8.0.0/24 to any port 80 proto tcp

I have openvpn running over 1194/udp and I need to restrict apache access to vpn clients only, the rest of the world should not be able to access web server. So I did this configuration: ufw allow ...
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8 views

Why can I not connect to my Ubuntu 12 box when ufw shows my port is accessible from “anywhere”?

I have my ssh ports set to 880 as shown in the screen shot below. But when I try to SSH to my box from a remote IP i cannot access it. The ufw status shows that the port is open from ANYWHERE. ...
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43 views

Still seeing connections from IP after blocking in fw

So I'm using iftop to monitor connections on my server, and I'm seeing this ip address 116.110.127.24 making constant connections on ssh port. (I'm not sure if this means 22 or my actual ssh port, it ...
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76 views

UFW block 80 port? 14.04

Im using ubuntu 14.04.On ufw 80 , 80/tcp , 80/udp is allowed from all. But when i look to logs. its look like this *my server ip YYY.YYY.YYY.YYY *and i delete my mac and ip Feb 21 16:59:14 server ...
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37 views

Firewall not starting on system startup

I have enable firewall using sudo ufw enable. But when i restart system, it is getting disabled. I checked /etc/ufw/ufw.conf and it has ENABLED=yes. Here is system config $ uname -a Linux master ...
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40 views

Block HTTPS site

Can anyone recommend an effective tool to block some https websites with ubuntu server? I want to use the server as a gateway for the users. A detailed guide would be highly appreciated. Thanks
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36 views

UFW ACCEPT Problem

I'm having problem with UFW. If i block like whole /24 network becouse lots of bruteforcing etc. coming from China / Korea or somewhere. They still get to open ports. If i have, lets say port 443 ...
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28 views

ufw, wifi, ethernet and the access to my computer

Hello everybody and thank you for your help in advance. My problem is as follows. I have installed kmotion, webadmin and of course apache in my laptop. I have opened ports 80, 8085 and 10000 ir order ...
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118 views

UFW is not logging (port scan with nmap)

This is the output of sudo ufw status verbose: Status: active Logging: on (low) Default: deny (incoming), deny (outgoing) New profiles: skip To Action From -- ...
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32 views

External connections to website are blocked

I have a fresh install of Ubuntu server and am just trying to host a website on port 9999. My router is correctly forwarding the port to the hosting machine and I have set ufw to allow TCP on port ...
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36 views

Will this UFW Config keep all non-lan traffic on the VPN?

I use PIA VPN as an always on VPN for my ubuntu box. I want all the traffic to go through the VPN, and no internet activity anywhere else. I also want to keep local LAN access to/from my ubuntu box. ...
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21 views

Some SSL web sites stop responding, while others continue to function

Does anyone have ideas on how to debug my problem. I have sites that are using dedicated IPs with secure certificates from comodo, and other sites using startssl certificates. Under unknown ...
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73 views

ufw not working anymore

This morning I needed to do some firewall tweaks on my machine (Ubuntu 14.04 LTS; Mac Mini). After running ufw status verbose, the following errors were shown: Traceback (most recent call last): ...
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31 views

ufw: allow connection to the firewall itself?

If I understand ufw (Uncomplicated Firewall) the right way, then commands like ufw allow in on eth0 to any port 80 allows connections from eth0 to any other network interfaces and to the firewall ...
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98 views

SNORT - configuration to use it with VPN

my all network traffic goes trough VPN. Status of ufw: Default: deny (incoming), deny (outgoing), disabled (routed)/ ALLOW OUT Anywhere on tun0. snort.conf - http://pastebin.com/rvyYcCke ...
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26 views

Unable to browse when on VPN (OpenVPN) and UFW in place

I have set up an OpenVPN server using a script. I have set up the following UFW rules: 22 ALLOW IN Anywhere 1194/udp ALLOW IN Anywhere 22 (v6) ...
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408 views

ping localhost: socket: Permission denied

I messed something up and pinging any hostname gives me "unknown host", and pinging localhost or 127.0.0.1 gives me "socket: Permission denied", even on root. Connecting to the machine (ssh/openvpn) ...
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71 views

Configuring strong firewall rules

How to configure strong firewall settings via ufw? All inbound settings set to deny and only specific outbound ports to be allowed. Will the following be good enough? ...
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56 views

How to enable remotely access?

I'm trying to access remotely my 8080 port but when I try to check if it is opened the site ("http://www.portchecktool.com/") tells me that the port is closed. Here's my ufw status: sudo ufw status ...
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139 views

Firewall configuration behind a proxy

Web access is given via a proxy server(port 8080). What inbound and outbound rules should one set up in the firewall(via ufw)? Is deny(incoming) and deny(outgoing) with an exception of "8080, allow ...
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Ubuntu UFW extending to whole network

UFW only allows the firewall to work within where it is installed. I was wondering if I made my ubuntu a wireless access point and other computer start connecting to it will UFW work for the other ...
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7 views

UFW keep close after running les than 24 hrs

I have tried to start the ufw ufw enable It it started. But it will stopped again in less than 24 hrs. How to make it keep running?