All Questions
11 questions
0
votes
0
answers
92
views
Clients couldn't query DNS server listening on router interface's secondary IP
I have a router where its interface has two IPs
$ ip addr
br-lan: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP qlen 1000
link/ether <MA> brd ff:ff:ff:ff:ff:ff
...
- 187
1
vote
1
answer
5k
views
Unable to Configure WireGuard to Use Secondary IP Address Instead of Main IP Address of the Server
The Setup
The main ethernet interface of my server is enp8s0, has one public IP address (116.202.221.254—server's main IP address), and here's how it is set up.
# ip addr show enp8s0
2: enp8s0: <...
- 225
4
votes
1
answer
791
views
How is Netflix tracking that I'm behind a VPN?
Disclaimer:
This is not a "I need VPN to surf Netflix". Surfing without VPN at this site allows Netflix.
The question is instead the other way around: "There is a PC that needs to Internet through ...
- 1,819
0
votes
2
answers
223
views
Split access from multiple uplinks
Our setting is as follows:
+---------+ +------------+ /
| | | Modem | /
+------...
- 155
0
votes
1
answer
1k
views
Routing issue with iproute2, two gateways and two network interfaces
I am trying to setup a layer 3 iptables firewall, with two interfaces.
My firewall has two physical interfaces : eno0, connected to my ISP's gateway, and eno1, connected to my local network gateway.
...
- 1
2
votes
1
answer
2k
views
IPTables Multi-VLAN NAT to Multiple IPs
I have a slight Problem with my NAT-Setup.
What I'm trying to do:
I have 2 VLANs (in this example 100 and 200) and want that they can access the Network via separate IPs. This should be accomplished ...
- 397
1
vote
1
answer
349
views
How to route traffic destined for a port to an IP without altering the destination IP using iptables/iproute2?
I have to collect data from a number (>1000) of devices whose only authentication/authorization is via the source IP address connecting to them. These are network devices whose configuration is ...
2
votes
1
answer
2k
views
How to route traffic through different interfaces based on the port number?
iptables -A PREROUTING -i usb0 -t mangle -p tcp --dport 8080 -j MARK --set-mark 1
iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD ...
0
votes
2
answers
4k
views
Failed to ping through gateway which is not default gateway
I have the following network interface configuration,
eth0: 192.168.78.1/24
eth1: 192.168.254.76/24 (Gateway 192.168.254.1)
eth2: 192.168.253.131/24 (Gateway 192.168.253.1)
where both gateways have ...
- 101
1
vote
1
answer
420
views
Special setup for a linux server to route to itself
I've got two linux servers in question. When one server initiates a request for a specific IP address that the other server has, I would like the initiating server to route the request back to itself ...
- 444
0
votes
1
answer
194
views
Routing config between internet load balancers and backend
Im facing a problem due my lack of experiencie on routing.
I need to config the next things (all run on my computer virtualized, if works, i will pass it to hardware)
[internet] ---- [DMZR]--/--[...
- 181