How do I monitor the traffic in my network?

How to check network connection in Wireshark?

I want to see if the network connection is good or not, but I don't know how to check it in Wireshark.

I tried viewing the capture and I didn't see anything. But what I am seeing in the sniffer is just the IP traffic and not the data.

I am using Ubuntu 8.04. What can I do to see the network connection?

Use the ifconfig command. In case your Linux distro has an applet for it, you could use it as well. If you have to check the connection over LAN, you could also use mtr.

If you're only interested in checking the connection over WiFi, you can use iwlist: iwlist wlan0 scan. If you don't get any results, it's because there isn't any AP around. You can use the scan option with iwlist to scan for such an AP, and you'll get a "no scan results" result.

Can you see network traffic with Wireshark?

mjkr, Yes but not for traffic going out.

It can see the traffic going in and out of the server via tcpdump.
younder: okay thanks. I'll have to investigate some more mjkr, you will see that the IP is the same on every packet so the server is also used as a gateway. mjkr, I read you do not want traffic going out of the server, if you have a router you can control this, or set your server as a bridge. younder: thank you very much. As it is, I only have one server and the local network traffic is through the server. I'll try the above options, then
mjkr, do you want to use this server as a router? I think the traffic should go to the internet then. OerHeks: this is what I have now, but the servers have been used to connect my home workstations to the internet before, so i'd like to figure out how to keep it that way and how to access the server itself from another computer. mjkr, Ok, then it is fine, your computer can access the internet on the server's IP. Use your own router and configure port forwarding to that IP and do all your work from there.
i'd like to make it easier for other people to access the server without being able to sniff on my network. but I don't want to change the server to be a router. mjkr, this sounds different than what you stated earlier, but yes, I understand why you want that. You want it all internal to your own network.
good luck with that. ok, i'll set the server up as a bridge as I said before then, thanks younder and OerHeks. mjkr, you have it all worked out then. does anyone know what happened to that script?

How do I monitor the traffic in my network?

How do I know if a new device has been installed in my network?

How do I monitor my network when I travel? How do I setup and maintain a wireless network that is secure and reliable?

The Internet is full of tips and tricks for setting up a home or office network. In fact, the best of the bunch are just so good they actually have turned into how-to guides. We've rounded up the best of these online networking guides in one handy guide that you can keep handy.

If you're not as tech savvy, there are also plenty of inexpensive solutions available. And for those who need to really make the most of their network, there are a few different solutions available as well. You'll find out more in the rest of this guide!

But first, let's take a look at some of the basics you should know to get started: Connecting to the Internet. We're going to assume you already know how to connect to the Internet. If you don't, read our guide on connecting to the Internet, then come back when you're ready to connect to the Internet.

Connecting to your home network. One way to connect to your home network is to run Ethernet cables from your modem, router and computer. Most internet providers offer free cable installation or a basic connection for a small fee.

Check with your internet service provider to find out what your connection type is. It will often be either fiber, cable or satellite.

Fiber is the fastest. Cable and satellite are slower. When choosing a connection type, choose fiber if you want the fastest speed.

With a fiber optic connection, your speed is limited by distance. This is because there is no copper wire to transmit data over.

With an Ethernet cable, your speed is limited by the length of the cable between your modem and router. With a direct Ethernet cable, the longer the cable, the faster it will be.

If you only have one Ethernet cable in your house, you can only use it for your computer. The connection is still great for that, but you can only share files with one device at a time.

To solve this problem, you can connect additional devices to the same cable using a switch. This is called a crossover cable.

The cable plugs into the modem or router on the ends.

Can Wireshark be used for network monitoring?

I'm trying to find an alternative to Wireshark for a project.

I have a number of laptops and a couple of servers. I'd like to be able to capture data from these devices in real time, and perhaps analyze it later.

Are there any tools that can do this? I've read up on tcpdump, but it seems to be aimed at capture-and-parse only. Tcpdump is not really meant to do real-time capture. It will run in a separate thread and capture when it can.

It has some options to change this behaviour, but it will never be real-time. See here for details: You could use netcat instead of tcpdump if you want real-time capture.