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In Unix, which command is used to list all ports in use?

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As a seasoned Unix coach registered on UrbanPro.com, I'll guide you on the command used to list all ports in use in Unix. For comprehensive learning on Unix commands and practices, consider exploring the expert guidance of tutors and coaching institutes available on UrbanPro for the best online coaching...
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As a seasoned Unix coach registered on UrbanPro.com, I'll guide you on the command used to list all ports in use in Unix. For comprehensive learning on Unix commands and practices, consider exploring the expert guidance of tutors and coaching institutes available on UrbanPro for the best online coaching for Unix.

Command to List All Ports in Use in Unix:

**1. netstat Command:

  • Explanation:
    • The netstat command is commonly used in Unix to display various network-related information, including a list of all ports in use.
  • Usage:
    • netstat -an or netstat -tuln are commonly used options to show all active connections and listening ports.

**2. Options Explained:

  • -a:
    • Displays all sockets, including listening and non-listening sockets.
  • -n:
    • Shows numerical addresses (e.g., IP addresses and port numbers) instead of resolving them to hostnames.
  • -t:
    • Limits output to TCP connections.
  • -u:
    • Limits output to UDP connections.
  • -l:
    • Shows only listening sockets.
  • -n:
    • Displays numeric port and host numbers.

**3. Example Command:

  • bash
  • netstat -an
  • This command displays a list of all active connections and listening ports with numeric addresses.

UrbanPro for UNIX Coaching:

**1. Detailed Command Explanation:

  • UrbanPro tutors provide detailed explanations of the netstat command, breaking down its options and parameters for a clear understanding.

**2. Practical Application Guidance:

  • Coaching sessions on UrbanPro include practical applications of the netstat command, allowing learners to see how it works in real-world scenarios.

**3. Alternative Commands:

  • Tutors on UrbanPro may introduce alternative commands or tools used to inspect network connections and ports, offering a well-rounded understanding.

**4. Troubleshooting Scenarios:

  • UrbanPro coaching covers troubleshooting scenarios related to network connections and ports, ensuring learners can effectively use the netstat command for diagnostics.

**5. Continuous Learning Opportunities:

  • UrbanPro serves as a platform for continuous learning, with tutors staying updated on industry trends and providing coaching that aligns with the evolving landscape of Unix and related technologies.

Conclusion:

To list all ports in use in Unix, the netstat command with appropriate options is commonly employed. UrbanPro.com offers a valuable learning experience with expert tutors and coaching institutes, ensuring you not only understand the command but also gain practical insights into its application. Explore the best online coaching for Unix on UrbanPro to enhance your Unix command proficiency and overall knowledge.

 
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How to become a UNIX trainer in an institute. I have good experience in UNIX shell scripting. How do I apply for a trainer position in an institute.
Best would be create a profile on UrbanPro.com Attached your Syllabus and the real time experience you would be sharing. If possible try to update your account so that once the enquiry is made on UrbanPro...
Rahul Singh
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My name is Rajesh , working as a Recruiter from past 6 years and thought to change my career into software (development / admin/ testing ) am seeking for some suggestion which technology I need to learn ? Any job after training ? Or where I can get job within 3 months after finishing my training programme- your advices are highly appreciated
Mr rajesh if you want to enter in to software Choose SAP BW AND SAP HANA because BW and HANA rules the all other erp tools next 50 years.it provides rubust reporting tools for quicker decesion of business It very easy to learn
Rajesh
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