Questions tagged as 'redes'

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Reading packets from a server with Java sockets

I am developing a program for reading packages sent by computers to a server that has the port 7779 enabled to receive this data. For this I use sockets from Java . The problem I have is that I open the port, read the information, but afte...
asked by 28.01.2017 / 23:45
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Is the network I did well implemented?

In Bogotá there is a main office where the main and back. For the interconnection of the headquarters you want to contract fiber optic, looking for all the venues have fast and reliable access to the servers of the main headquarters. Locally...
asked by 17.09.2017 / 05:36
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A switch has mac addresses in its ports?

I'm doing networking exercises, I have a question, a switch has mac addresses in each port? If so, what are they used for?     
asked by 18.05.2018 / 14:33
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How do I enter the settings of my router from the mac terminal?

I need to enter the router configurations of my router that are more advanced, but I can not find the command for the mac terminal that connects me to the router.     
asked by 05.05.2018 / 22:57
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DNS Delegate a subdomain with Ubuntu

I have two ubuntu servers, srv1 and srv3. srv1 is the main server and srv3 is a subdomain to which I want to delegate. The problem is that it does not transfer the data from srv3 to srv1. Example of structure: SERVER 1 /etc/bind/na...
asked by 06.11.2017 / 00:52
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Help script listing disks

Good morning everyone. My goal is to list the disks of the different teams of the same network monthly to check the used size of these, and in case it is almost full I sent a warning (In the same folder where the disks are listed, although with...
asked by 04.05.2017 / 14:42
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How to build 2 network interfaces in centos

I have a server that has 2 network interfaces. One to a public IP and another to a private ip. The one in the private IP has to look at a proxy. When I lift any of the 2 IPs in one of the interfaces it works fine. That is to say. If I raise t...
asked by 20.04.2017 / 19:08
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EIGRP VLSM Exercise Networks

Could someone solve the following exercise of EIGRP and VLSM networks? As I understand it has to have different IPs and different masks.     
asked by 11.11.2018 / 23:30
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When restarting UBUNTU SERVER 18 network configuration is lost

I recently commented one of my servers with UBUNTU SERVER 18 has presented me with a failure at the level of the motherboard a capacitor and as a more practical solution I have removed the hard drive and I have placed it on another computer, whe...
asked by 29.10.2018 / 04:10
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NETWORKS LAN and WAN block router

I'm starting with networks. I have a question as I could create or how it would be to make a LAN that has blocked access to the router (192.168.1.1) but that does have Internet. Thank you!     
asked by 17.10.2018 / 17:36