How do I find out if someone has been on my computer remotely or through a network?  I am on a network with quite a few different people at my house.
121790
In Mac OS X, if I don't touch it for a while, it will lock the screen and one must use password to unlock it, but this kind of log in is not recorded by last command. I want to know if anybody tried to break into my MacBook when I am not in front of it. Is there any way I can log such attempts?
74738
I would like to monitor all and any Internet traffic from my home PC to see what programs installed on my home machine are accessing the Internet.  I thought I could use  for this, but I noticed Firefox traffic doesn't show up by default; you need .  What options do I have to monitor all traffic?
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There are many answers here detailing programs that will monitor and log internet usage for a pc, but I need that usage to be logged and broken down, detailing which applications consumed that data.  I've noted there are several that give a real-time feed of each application's data usage (NetLimiter, Win7 Resource Monitor), but I can't find one that will log such data.  Anyone know of one?  Need to track down which program is using up a friend's bandwidth!
58505
I need to write a small program that can detect that it has been changed. Please give me a suggestion!  Thank you.
51273
What is the equivalent to:  iwlist wlan0 scan   to see who (what computers and smartphones) are around me? Maybe putting the card into monitor mode before doing it.
72350
My work PC computer(in my home office) is connected to my home router via ethernet cable and I'm connected to my company server through VPN (NetExtender). If I'm logged onto the remote terminal server on my work PC and I have my personal macbook connected wirelessly through the same router, can they track my internet usage on my personal macbook because they are using the same router?
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There are lots of discussion on how to see which app is requesting network connection. I have tried the following apps:  tcapturepacket wifi monitor connection tracker   However, none of them was useful. For example, for a short period of time, I uploaded a 30KB pcap file which can be viewed . Still I haven't find out which app is requesting connection and to where it is trying to connect.  I also tried to look at adb logcat, but didn't find useful information. Maybe something has been missed here. Any guess?
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A user has been active on one of the sites recently, even though they're concurrent suspended network-wide on the rest of the network. How is this possible, and is it possible to evade a network suspension on only one site?
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I've a small home network up and running and managed to set up ssh. Can anyone tell me what I need to do to refer to one computer on the network from another by host name rather than IP address (which is what I'm doing now)?
20087
My internet connection is very slow. I suspect someone in the network is using a BitTorrent client which takes huge amount of bandwidth.  Is there a way to detect who is using my bandwidth (network sniffing tools etc)?  I should have pointed out that I have no access to the router, what I am looking for is a way of detecting someone's MAC/IP if she uses Bittorrent.
80945
I'm reposting  I asked on the  SE, bacause I have been redirected to Super User.  I have successfully set up two Linksys routers running DD-WRTv24 to do WDS. They have the same SSID, but different static local IP addresses. There is no security: it's just for testing; no Internet connection.   When I open my notebook, I see the SSID shared by the routers in the list of WiFi access points, and I can connect to it. Once connected, I can ping both routers' local IP addresses, so I know that the WDS is working. But I can't find a way to find out which of them I have actually connected to.  I wouldn't like to have different SSIDs, because I plan to have the access points hand-off users to one another, and I want it to be transparent for the users. I configured one AP to distribute DHCP IP addresses in one range, and the other in another range, so I can discover which AP I connected to at first, but I want a way to discover which AP I'm connected to now, so that I can find out whether the hand-off actually occurred.
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I noticed recently that my home external-facing router is showing that a lot of data has been downloaded in the last few days. Everything appears to be secured so I don't think it's anything malicious, and there are certainly activities on the network that will cause a lot of data to be pulled down (downloading digital games, for example).  I'd like to get a better understanding of what is using all of the data: either by device or by "service". By service, I mean a breakdown like: Netflix used 20Gb Xbox Live used 30Gb etc  What options are available for providing insight into data usage across the whole of the network? I'd consider inexpensive hardware or software.
10080
How to detect the Internet connection is offline in JavaScript?
114417
Does anyone know of a program or way to log all network activity to a specific program on one's computer (program and/or service)?  I know I can see this "live" in Resource Monitor, but I'm wondering if anyone knows of a program or way to track and log all network activity to/from a specific process and/or service.  I'm finding a lot of "live"-type monitors, like Windows Resource Monitor, but nothing that can log.
25653
Maybe a stupid question but how can I tell if I have a static IP address or a dynamic IP address? Running Fedora-13
47195
How can I list all  and their associated  of the machines connected to my local network (LAN)?
14697
I need to know which computer is consuming my bandwidth. Is there a tool to do this?