How do I check if a port is open on my mac?
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Answer / Ranjeet Choudhary
To check if a specific port is open on your Mac, you can use various tools such as Telnet or nmap. Here's how to use each:
- Using Telnet (note: telnet is not included by default on macOS Catalina and newer; you will need to install it first):
Open Terminal, enter the following command, and replace `<IP_address>` with your target's IP address and `<port>` with the desired port number:
```
telnet <IP_address> <port>
```
- If the connection is successful, it means that the port is open. If you get a connection refused message or timeout error, then the port is most likely closed.
- Using nmap: Run this command to check the status of the port.
```
nmap -p <port> <IP_address>
```
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How do I check if a port is open on my mac?
I wish to understand How to subnet a class c address I understand the principle of subnetting as 192.168.5.0 /24 1st Subnet > 192.168.5.1 Last address > 192.168.5.126 192.168.5.127 is Broadcast address 2nd Subnet > 192.168.5.128 last address > 192.168.5.254 Even the division into 4 Subnets , i Know the formula but still am having to understand HOW TO CONFIGURE ON THE TCP/IP CONFIGURATION LOCAL AREA NETWORK HOW TO PUT THE SUBNET WHERE TO PUT THE SUBNET Am studying the Network + Afterwards The MCSE , CCNA ,CCNP I got a scenario > 260 hosts , DHCP , DNS , 1 GATEWAY ,1 wireless access point on the Network address 192.168.2.0 /24 to document the IP Scheme & Configure afterwards PLease do me a favour to explaine me how to handle this , I have been through e -books , sites of Techtutorial and so on but nobody gives the explanations of how to do it , How to nanage the configuration .
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