Port Query Tool Mac Find What A Port Is Being Used For

Posted : admin On 06.04.2020

#Source Query

  1. Port Query Tool Mac Find What A Port Is Being Used For Spam
  2. Port Query Tool Mac Find What A Port Is Being Used For Spoofing
  3. Port Query Tool Mac Find What A Port Is Being Used For Sharing

Your application has to be making use of the port at that particular point in time before the port can then be in the connection 'ESTABLISHED' state To sum it up, the port being in the listening state is a good positive result. PortQueryUI – GUI tool that can be used for troubleshooting port connectivity issues. PortQueryUI – GUI tool that can be used for troubleshooting port connectivity issues. At times we might run into scenarios where a user is unable to access any Exchange, Lync, Mobility or any related External User Access functionalities.

For example, if you specify the source port of 3000 when you query UDP port 389 (LDAP), PortQry uses UDP port 3000 if it is available for the initial UDP datagram that is sent to the LDAP port. When PortQry sends an LDAP query to the LDAP port, PortQry use an ephemeral port instead of the specified source port. For every DNS query, the following information is displayed: Host Name, Port Number, Query ID, Request Type (A, AAAA, NS, MX, and so on), Request Time, Response Time, Duration, Response Code, Number of records, and the content of the returned DNS records. Port Query UI tool (portqueryui.exe) is a tool to query open ports on a machine. This tool makes use of command line version port query tool (portqry.exe) and provides an interface that can be viewed.

Command line query tool for source servers. Basically a head for goseq.Use it to get source server lists from the Valve's master servers (ora custom, ip-specified one).

Use ifconfig -a for identify required port by find required MAC. Generaly, in case link LED not light it more like cable problem or disabled port on the switch. The Check Open Port Tool is an online web application used to test port forwarding rules for network routers. This online tool was created by Mike Haldas for CCTV Camera Pros. In order to view IP security cameras and network-able video surveillance DVRs remotely over the Internet, it is necessary to setup port forwarding rules on your router to.

#Installation0. You must have Go Installed (minimum 1.0)0. Make sure your GOPATH is added to your system's PATH (it isn't by default)* You can find your current GOPATH by running go env* Windows:set PATH=%PATH%;%GOPATH%* Linux/Mac:export PATH=$PATH:$GOPATH0. Run go get github.com/hfern/sourceq to compile & install the binary to your GOPATH

Update

To update Source Query, simply run go get -u github.com/hfern/sourceq

#Usage

There are two types of queries that can be done with Source Query: Master Server querying and individual Source Server queying.

##Master Queries

In this article, I am going to show you how to install VMware tools on macOS Sierra. Have you ever installed macOS Sierra or El Capitan on Virtual Machine. But in The Vm MAC OS x i only see display resoloution 1024×768. I installed VM-Ware Tools 3 times but it will not help. July 16, 2017. The 10 must-have utilities for macOS Sierra For the least frustration and most efficiency on your Mac, install these handy extras. Mgl tool for mac seirra version.

Port Query Tool Mac Find What A Port Is Being Used For

A sourceq master command will querying a Source Master Server to obtain a list of servers.By default, only IPs are returned by the Master server. If only the IP field is requested(--fields 'ip') then only a single request to the master server will be dispatched. Ifother fields are requested (--fields 'ip,name') then a single, additional request will be dispatchedfor each ip returned by the master server.

You can always use sourceq master -? for a summary of the command line options.

Use the --json flag to output a JSON encoded array of the retrieved servers to StdOut instead of printing a table of servers.Diagnostic information may still be printed to StdLog.

Fields

Use a comma-delimited list of these with the --fields flag.

For text-results, column lengths may optionally be specified to pad values with by appending =X where X is a numberindicating the minimum field length for that column.

E.g. --fields 'ip=21,players,name=0' will pad the IPcolumn to 21 characters, use the default padding for the players column, and not pad the name column.

  • environment: Environment OS (L inux, W in, M ac/ O s X)
  • id: ID of the server.
  • steamid: SteamID of the server.
  • ip: IP Address of the Server
  • bots: Number of Bots
  • game: Game being run.
  • map: Map currently active (e.g. de_dust2).
  • players: Number Players
  • spectatorname: Spectator Name
  • spectatorport: Spectator Port
  • vac: Is the server VAC protected?
  • gameid: GameID that the Server is running
  • mode: Mode the server is running
  • name: Name of Server
  • port: Port of the server.
  • servertype: Hosting Type (eg dedicated)
  • witnesses: # Witnesses for The Ship.
  • duration: Will arrest in (The Ship)
  • folder: Folder that the game is hosted from.
  • keywords: Keywords, registered by the player
  • maxplayers: Maximum number of players allowed
  • version: Version of the server being run.
  • visibility: Is a password required to join?

Regions

Use with the -r flag. E.g. -r 'USW' for United States West servers.

  • SA: South America
  • EU: Europe
  • AS: Asia
  • AU: Australia
  • ME: Middle East
  • USE: United States (East)
  • USW: United States (West)
  • AF: Africa
  • OTHER: Rest of World

Known Filters

You may use other filters than the ones listed here. These are the publicly known ones.

Use as -f filtername:value

You may use multiple filters (-f filtername:value -f other:otherval).

  • type: Servers running (d)edicated, (l)isten, or (p) SourceTV.
  • secure: (1) Servers using anti-cheat technology (VAC, but potentially others as well).
  • gamedir: Servers running the specified modification (ex. cstrike)
  • map: Servers running the specified map (ex. cs_italy)
  • linux: Servers running on a Linux (1) platform
  • empty: Servers that are not empty (1)
  • full: Servers that are not full (1)
  • proxy: Servers that are spectator proxies (1)
  • napp: Servers that are NOT running game ([appid])
  • noplayers: Servers that are empty (1)
  • white: Servers that are whitelisted (1)
  • gametype: Servers with all of the given tag(s) in sv_tags (tag1,tag2,..)
  • gamedata: Servers with all of the given tag(s) in their 'hidden' tags (L4D2) (tag1,tag2,..)
  • gamedataor: Servers with any of the given tag(s) in their 'hidden' tags (L4D2) (tag1,tag2,..)

Filter Usage Examples

For only listen servers

For only non-empty servers

Servers running Counter Strike currently on map de_dust2

###Master Examples

General help for querying master servers

Get the first 20 servers' IP and Name in U.S. West.

Get non-empty, non-full servers.

List the usable filters, regions, and fields that can be used.

Dump a JSON list of servers to the file 'servers.json'


Editor's note on June 4, 2015: Chad Perrin's April 2008 article about tools for listing active services and open ports is still one of our most popular articles, so we asked Jack Wallen to write a 2015 update on the topic. Chad's original article appears directly after Jack's update.

One of the biggest headaches for network administrators is open ports on devices. Unless you manually installed the operating system on every device on your network, ensuring to close down all unessential ports, you run the risk of attack.

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The ports you should disable will vary by system and may even be dictated by the needs of specialized software (for instance, QuickBooks requires specific ports — determined by release — in order to function). You need to come up with a list of ports that either can or must remain open. Once you have that list, you can set about closing up shop on those machines.

But how do you know which machines have which ports open? Sure, you could go around to every machine on your network, open whatever is being used as a firewall, and manually make sure all necessary ports are open and all unnecessary ports are closed.

Port Query Tool Mac Find What A Port Is Being Used For Spam

Or, you can scan the network and find out which machines have which ports open. When you know the location of open ports, you can check that information against your master list and close everything that is necessary. Now comes the tricky part.

How to run a port scan

How do you find out which machine has which port open? You run a port scan. In case you don't know how to run a port scan, I'll walk you through the process.

I'm using a Linux machine for the scan. Why? Because Linux has great scanning tools that are ready for the task, free, and easy to use.

If you don't have a machine with Linux running on it, worry not — you can download a network penetration live distribution such as Kali Linux, burn the ISO onto a CD or USB flash drive, and boot a machine into a live instance of Linux (no changes will be made to the machine being used, as the live instance is run completely from RAM). With the live instance up and running, you'll have an amazing assortment of network forensic/analysis tools at your disposal.

The port scanning tool you should use

The best tool for port scanning is Nmap. If you don't want to monkey around with the command line, there's an outstanding GUI front end called Zenmap, which is available for Linux, Windows, and Mac. If you don't want to bother with Linux, you can install it on Windows. (Nmap is far more powerful than the Windows built-in network scanning tools.) Nmap and Zenmap work identically across platforms, so when you know how to use the tool on one platform, you can use it on all of the platforms.

After Zenmap is installed, you are ready to run a full port scan on your network. The size of your network will dictate the time it takes to run the scan. With Zenmap, you can run very general and very specific scans. Let's first run a very general scan to get an idea of what we're dealing with. We'll run a scan on an entire 192.168.1.x network.

  1. Open Zenmap.
  2. In the Target section, enter 192.168.1.1/24 (or, however large you need to scale).
  3. From the Profile, select Intense Scan.
  4. Click the Scan button.

You should immediately see results populate the Nmap Output tab; the results display open ports on machines within your network (Figure A). The intense scan can take a long time, but if you want the most information about your network, it's the way to go.

Figure A

Once the scan is complete, you will see a list of all devices found on the network in the left pane. Click one of the devices, scroll through the Nmap Output, and look for sections that list Port, State, and Service (Figure B).

Figure B

If you don't have time to comb through the scan, you can always save it and view it (using Zenmap) at a later time. To save the scan, go to Scan Save Scan, give it a name, and click Save.

For a quick view of open ports on your network, click the Ports/Hosts tab to see which ports are wide open (Figure C).

Figure C

Port Query Tool Mac Find What A Port Is Being Used For Spoofing

If you don't want to depend on the GUI, with Nmap (which is installed when you install Zenmap), you can run the same scan(s) from the command line. For instance, you want to run the intense scan against a single host. Open a terminal window and issue this command.

These are the switches for the above command.

  • T4 ─ set the timing to 4 (0-5, with 5 being the fastest)
  • A ─ enable OS detection
  • v ─ verbose output

Port Query Tool Mac Find What A Port Is Being Used For Sharing

At this point (whether you used Nmap via the command line or the Zenmap GUI), you should have a full list of ports that are open on your network. Now that you know which ports are open and on which machines, you have a far better chance of securing those ports and, in turn, your network.

The bottom line

Nmap/Zenmap is not the only network scanning option on the market, though you'll be hard-pressed to find an easier, more powerful tool to help you discover which ports are open on your network.

Also see

ByChad Perrin, originally published April 15, 2008

You should turn off any services you don't actually need so that they will not become avenues of attack for security threats. Different systems will have different services running by default, even between different service pack versions of MS Windows XP, and if you're coming into a situation where you must assume responsibility for the security of computers that were already set up before you got there, there are certain to be different services running than on a default install of the system. What's needed is a tool for listing active services and open ports. I'll explain how such tools can be used on three types of systems: Linux distributions, FreeBSD, and MS Windows.

As mentioned in the article, '10 security tips for all general-purpose OSes,' you should turn off any services you don't actually need so that they will not become avenues of attack for security threats. Ten specific services for Microsoft Windows were mentioned in my later article, '10 services to turn off in MS Windows XP.' While ten is a good number for a quick list in an article, it's hardly comprehensive.

There's essentially no way to provide a comprehensive list. Different systems will have different services running by default, even between different service pack versions of MS Windows XP, and if you're coming into a situation where you must assume responsibility for the security of computers that were already set up before you got there, there are certain to be different services running than on a default install of the system. Worse, there are new services being invented from time to time, expanding the number of services that may possibly be running on a given computer.

What's needed is a tool for listing active services and open ports. I'll explain how such tools can be used on three types of systems, in alphabetical order — Linux distributions, FreeBSD, and MS Windows — plus how to use an additional tool for commercial UNIX systems where the other tools may not be available.

FreeBSD

On a FreeBSD Unix system, as with other BSD Unix systems, you have a number of utilities with a base system install that can be used for listing open files, running processes, and network connections. The netstat utility is maintained as a part of the FreeBSD base system by the FreeBSD core developers, and offers exactly the sort of functionality you need to list open ports on your system.

netstat

To list open network ports and the processes that own them on FreeBSD with netstat, you can use this command:

The output for this on my laptop running FreeBSD is:


The localhost.ipp entry refers to the Internet Printing Protocol used by CUPS to talk to the network printer. The *.2200 entry refers to SSH, which I have set to a nonstandard port, so it's not recognized by netstat's port-to-service association capabilities. *.x11 refers to the X Window System protocol.

You can add the -n option to netstat to get port numbers instead of having the utility try to provide names for services:

The output would then look somewhat different:


This information can be used to determine what services are running, in cases where services are using standard ports. On a FreeBSD system, you can get a listing of standard port associations by searching through the contents of /etc/services

For instance, if you wanted to find out what was up with port 631, you might use this command:

The output:

sockstat

In addition to netstat, the more limited command sockstat is effectively tailor-made for this kind of information gathering. To get a listing of listening ports and their associated processes, you can use this command:

The output may even be more useful than that of netstat above:

Linux distributions

As with FreeBSD, the obvious choice of tool to use for listing open ports is netstat. Most Linux distributions use a different version of the utility, however maintained separately from the Linux distribution, as an independent software development project.

One consequence of that fact is that the command line options used to achieve the same results may be different with FreeBSD than with Debian, Ubuntu, or Fedora Core Linux systems. On a typical Linux system, this command will list open network ports and the processes that own them:

The output should look something like this:

As you can see from this output, the Debian GNU/Linux system on which I ran that command has only four open ports — two for CUPS, so that the computer can communicate with the network printer; one for PostgreSQL so that it can be contacted by applications in development; SSH, so that I can access it remotely, from my laptop.

Microsoft Windows XP

Microsoft Windows also offers a netstat command that can be executed from the command line to get a list of open ports. The standard MS Windows version of netstat is slightly more limited than its Unix-like system counterparts, but still suffices to get a listing of listening services:

The output of this command should look something like this:

Note: 'hostname' is replaced by the system's hostname.

Commercial UNIX systems

For most commercial UNIX systems, even if there is not a version of netstat or sockstat available, you should be able to install lsof — which is short for 'list open files'. Most Linux distributions and BSD unix systems will provide lsof with a default install or through their respective software management systems. Some commercial UNIX systems do so as well, and for many others you can download it. The following command will limit the output of the utility to network ports: