Episode #125 of the Stack Overflow podcast is here. We talk Tilde Club and mechanical keyboards. Listen now
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The xAN designations (LAN, WAN, CAN, MAN, etc.) are loosely defined, with no formal definitions through standards bodies, and they may mean different things to different people. Having said that, HAN (Home Area Network) is a relatively new term relating to the deployment of a network in a home environment, and it represents a network about which you should ...


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This is an asymmetric routing problem: when a packet comes to the server through the Teltonika gateway and the server sends back an answer through the same Teltonika gateway, this works correctly; but if the server uses another default gateway, when a packet comes in through the Teltonika the server sends its answer through the other gateway (and its ...


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I've managed to fix it. Create a new network interface via the EC2 control panel Detach the existing public IP address from the existing network interface Attach that public IP to the new network interface Detach the existing network interface from your interface Attach the new network interface to your interface Connect to your instance and update the ...


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The command which handles bridging in Linux is brctl. The command you are most likely looking for is brctl show The bridge name is, of-course on the left, and all the interfaces connected to that bridge will be listed - one per line - on the right in the "interfaces" column. You may also specify a specific bridge with a command like brctl show ...


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Nmap's -sL option is the "List scan", which is not actually a network scan. It's purpose is simply to list the targets that were given as input, regardless of whether they exist or respond to any probes. This might not sound very useful, but it comes in handy when you want to discover information about DNS records. The first phase of an Nmap scan is forward ...


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A network bridge (in this case) is a virtual interface that joins one ore more network interfaces. It can be compared with a switch. If you add an interface, in this example eno1 (your physical network interface) to the bridge, it is called a slave of the bridge. The idea is, to add the physical interface to the bridge (this is, what "nmcli con add type ...


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It is very unlikely that the problem needs to be solved at the system level instead of the application level. If something is lost in TCP it gets resent by the peer - this is how TCP is designed. It is more likely that there are wrong assumption about how TCP works in the Java application. For example it is common error to treat TCP as a message based ...


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In general, what you depicted is exactly an ECMP route. Although dynamic routing protocols can (and will) install such routes, if you don't expect your network topology to change, running an dynamic routing protocol adds complexity and I feel that is an overkill. OSPF is not a piece of cake, trust me. Sure, you can install such route by hand: ip route add ...


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If your purpose in having multiple routes is robustness (redundancy in case of failure of a mid node), run OSPF on all five nodes. One option is Quagga, which provides OSPF and other routing protocols for for various Linux flavors including CentOS. Running OSPF on the nodes makes each one of them a router, and communications between master and slave will ...


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I forgot my login, but I'm OP, and I ran into this very issue today. Funny enough, the top result of me googling the problem is this page. But, I FIGURED IT OUT! There were (paper) print jobs sent directly to the IP address of the printer. I was able to resolve it by assigning a paper printer the IP address and letting it spit out all of the print jobs.


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