Iptables NAT (PAT) A to B to C and back,I want to access via SSH a DB server from an outside network via a linux (CentOS) gateway with two interfaces in separate networks as it follow below:
Admin PC IP: 10.21.1.8
Linux GW IP eth1 Ou...
Iptables NAT (PAT) A to B to C and back
I want to access via SSH a DB server from an outside network via a linux (CentOS) gateway with two interfaces in separate networks as it follow below:
Admin PC IP: 10.21.1.8
Linux GW IP eth1 Outside: 10.21.1.199 – SSH Port 10051
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Cannot 'sudo apt install <something>' after IPtables configuration,I'm trying to install some of the packages on Debian VM which is connected to another Debian machine (router). On the router default policy for FORWARD chain is DROP. I added rules for http(80), ht... Tags:firewalliptableslinuxNetworkingServer Faultserverfault.com
How to route certain traffic in OpenVPN from one client through another client?,Scenario
ClientA (Windows 10) and ClientB (Raspberry Pi OS) are both connected via OpenVPN to ServerA (Debian 10) over the internet. The OpenVPN network is 10.0.0.0/24.
Machine
OpenVPN IP
ServerA... Tags:iptableslinuxlinux networkingnftablesopenvpnServer Faultserverfault.com
iptables: packets and bytes counters for nat,When listing the NAT rules, are the packets and byte counters reporting only inbound packets, or inbound and outbound packets?
I am trying to determine how many TCP connections were made. A connect... Tags:iptablesServer Faultserverfault.com
How to exclude a domain from being routed through tor using iptables,I'm running a tor router on a Raspberry Pi with following iptables rules (wlan0: internal net / wlan1: Internet):
:INPUT DROP [12:3771]
:FORWARD DROP [0:0]
:OUTPUT ACCEPT [544:242321]
-A INPUT -m s... Tags:iptablesNetworkingroutingServer Faultserverfault.com
Having trouble with ipset behaviour,Have a script to populates ipsets and then I do:
/sbin/iptables -I INPUT -m set --match-set ipsum src -j DROP
Now not sure how this works out for other ports but I know that if I want the addresses Tags:ipsetiptablesServer Faultserverfault.comufw
How to unblock service discovery for IPv4 via Avahi?,On a Debian 6.0.6 system (squeeze) I am having trouble resolving a host using Avahi and IPv4. Here is a sample output:
: [email protected] 10102 ; avahi-browse -a
+ eth0 IPv6 yorkie [00:1f:3b:d8:67:1d... Tags:avahifirewallServer Faultserverfault.com
How to route traffic between L2TP/IPSec and WireGuard tunnels?,I have a KVM VPS running Ubuntu 18.04 which is simultaneously:
L2TP server (xl2tpd + strongswan) with IP 192.168.42.1/24
Wireguard client with IP 192.168.73.3/24 (server's IP is 192.168.73.1/24)
... Tags:iptablesl2tpServer Faultserverfault.comubuntuwireguard
Block requests to "Visual Search" in Edge and "Search images with Google" in Chrome for internal web application,We have a web application that is used internally that displays highly confidential images.
Microsoft Edge has started displaying a button on the images that launches Visual Search, and Chrome has a Tags:firewallGoogle ChromeMicrosoft EdgeServer Faultserverfault.comweb applications
How exactly is docker circumventing my nftables?,My aim is to block all ports from non "lo" interfaces except for 22, 80, 443.
I don't want external devices to my Rasberry pi to be able to access anything else except for 22, 80, 443.
I ... Tags:dockerfirewalllinuxNetworkingnftablesServer Faultserverfault.com
PREROUTING distinguish between INPUT and FORWARD packets,I'd like to do an iptables REDIRECT rule in the NAT PREROUTING chain, to redirect connections to port 80 to go to 8080. But I'd like to only do it for input packets (destined for this machine), not Tags:iptablesnftablesServer Faultserverfault.com
Iptables NAT (PAT) A to B to C and back,I want to access via SSH a DB server from an outside network via a linux (CentOS) gateway with two interfaces in separate networks as it follow below:
Admin PC IP: 10.21.1.8
Linux GW IP eth1 Ou... Tags:firewalliptableslinuxnatPatServer Faultserverfault.com
Windows 10 not receiving multicast,I have an application that sends multicast packets to discover each other.
This works on most Windows PCs but I have found one PC where it doesn't work.
Here are the things I have noticed on the PC... Tags:firewallmulticastServer Faultserverfault.comudpwindows
Two devices on a network unable to communicate,I have 2 devices:
Device 1 - 4gb RPI 4b
Device 2 - 2gb RPI 4b
Both devices have static IP addresses, and the network configuration shown on ifconfig for both is correct.
Up until about 3 weeks ago,... Tags:iptablesLocal area networkNetworkingServer Faultserverfault.comWiFi
How to edit/delete "IPV4 Address Group" from unifi gateway?,I'm just starting out with my unifi gateway and I was configuring a firewall rule through the UI. I messed up creating a "IPV4 Address Group". It has the wrong IP address ranges and I'm stuck. I... Tags:firewallServer Faultserverfault.comUnifi
Howto configure Ipset to block entire countries IPs,I need to block some countries using ipset and iptables.
What I've done so far (create new ipset set 'geoblock'):
sudo ipset create geoblock hash:net,port
then I created the following script /us... Tags:iptablesServer Faultserverfault.comubuntu 14.04
EC2 instance's Docker ports not not accessible after changing instance type,When changing the EC2 instance type I ran into a problem. The machine had 3 Docker containers that needed to be restarted and after the restart their ports became unreachable.
What could be the i... Tags:amazon ec2amazon web servicesdockeriptablessecurity groupsServer Faultserverfault.com
Block requests to "Visual Search" in Edge and "Search images with Google" in Chrome for internal web application,We have a web application that is used internally that displays highly confidential images.
Microsoft Edge has started displaying a button on the images that launches Visual Search, and Chrome has a Tags:firewallGoogle ChromeMicrosoft EdgeServer Faultserverfault.comweb applications
Is there a way in iptables to shortcut to the localhost instead of using an ip address?,I have the following fules that I would like enforced.. However, if the ip address of my machine changes, I would like to keep the rules enforced. These current rules will get out dated in the even... Tags:iptablesServer Faultserverfault.com
Limiting routing only from specific ip,Currently I run an openvpn server that pushes a route on per client basis (different clients receive different routes and static ips).
ccd/client1
push "route 172.16.236.0 255.255.255.0"
Tags:dockeriptablesNetworkingopenvpnServer Faultserverfault.com
I can't access my sites after typing iptables -F command,write the following commands that I found on a website to release the ports for a server
iptables -I INPUT -p tcp -m tcp --dport 25565 -j ACCEPT
iptables -I INPUT -p udp -m udp --dport 25565 -j ACC... Tags:iptablesServer Faultserverfault.com
Cisco ASA to Watchguard,I have never worked with watchguard firebox firewalls in depth before and we are replacing a Cisco ASA 5515 with a Watchguard M390. I am having a hard time interpreting the configuration settings ... Tags:Ciscocisco asafirewallServer Faultserverfault.comwatchguard
Prevent VPN client from network scanning on ocserv,I have a ocserv server for VPN on a debian11 server.
One of my clients did a network scanning and service provider blocked my IP for terms of service violation.
This is 2nd time that this happened ... Tags:debianfirewallopenconnectsecurityServer Faultserverfault.comVPN
port forwarding with rules on ubuntu 18.04,I'm having a VM where port 80 is consumed by apache tomcat (host.nvoids.com).
and I'm having apache2 php running at port 8020 which is a wordpress blog (host.nvoids.com:8020)
I want when somebody... Tags:iptablesport forwardingreverse proxyServer Faultserverfault.comubuntuubuntu 18.04
iptables rules not working for allowing a specific IP,I have a host with 2 network interfaces: wifi and site-site vpn (zerotier).
[email protected]:~# ifconfig wlp0s20f3
wlp0s20f3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.16... Tags:firewalliptablesServer Faultserverfault.com
Make WireGuard server accessible via multiple interfaces,I have a Raspberry Pi running WireGuard listening on port 51820. The Pi is connected to the my router via eth0 (192.168.1.51) and wlan0 (192.168.1.50), with the eth0 route having higher priority. My Tags:iproute2iptablesServer Faultserverfault.comwireguard
IPTables only allow localhost access,I have struggled throughout the years to get a solid understanding on iptables. Any time I try and read through the man pages my eyes start to glaze over.
I have a service that I only want to all... Tags:iptablesServer Faultserverfault.com
Port forwarding in Ubuntu, from public ip to a client,On a VPS with installed Ubuntu server 20.04 and OpenVPN, I need to forward all the traffic from a specific port of the vps public ip, to the same port of a VPN client.
VPS IPs:
vps public ip: 1.1.1... Tags:iptableslinuxopenvpnport forwardingServer Faultserverfault.comubuntu
How Docker interacts with conntrack?,I am trying to understand how Docker interacts with conntrack. I created two containers (connected to docker0), pinged 4 times from one to the other, and analyzed the iptables counts. This is the r... Tags:conntrackdockeriptablesServer Faultserverfault.com
Linux netfilter NAT based on SNI?,I am trying to do SNI proxying to a subnet on a router while keeping the src IP.
Background: I have a router doing DNAT to do port-forwarding for many application ports, and it is connected to a su... Tags:iptablesServer Faultserverfault.comsnissl
How to do the port forwarding from one ip to another ip in same network?,I would like do some NAT in iptables. So that, all the packets coming to 192.168.12.87 and port 80 will be forwarded to 192.168.12.77 port 80.
How to do this with iptables?
Or
Any other ways to Tags:iptableslinuxport forwardingServer Faultserverfault.com
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DOH warns vs eating seafood from oil spill areas
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The post DOH warns vs eating seafood from oil spill areas appeared first
Washington turns to Wall Street to help rescue dying bank
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With bulging eyes and a killer smile, this sabertooth was an absolute nightmare,Thylacosmilus, or the 'marsupial sabertooth', had wide-set eyes that didn't match with ambush hunting, yet it somehow found a way to thrive. Tags:AnimalsBiologyEnvironmentevolutionpopsci.comPopular ScienceScienceWildlife
Dark energy fills the cosmos. But what is it?,Cosmologists say that dark energy explains why the universe is accelerating as it expands. We just don't know what the stuff is. Tags:Evergreenphysicspopsci.comPopular ScienceScienceSpace
:quality(70):focal(4305x2366:4315x2376)/cloudfront-eu-central-1.images.arcpublishing.com/thenational/THCL47O2GNEKLFIYJV2P7LTHAI.jpg "Public Art Abu Dhabi to transform city with installations, light festival and biennale")
:max_bytes(150000):strip_icc():focal(999x252:1001x254)/Caroline-Manzo-032023-2000-065c831b88e54330a2e6948d116f7b6e.jpg "Caroline Manzo Breaks Silence on Early RHUGT Exit: 'I Was Going Back with the Highest of Hopes'")
