Software Alternatives & Startups

lsof VS tcpdump

Compare lsof VS tcpdump and see what are their differences

lsof

Lsof lists open files for running UNIX processes. It is a

Rating
0 reviews
tcpdump

tcpdump is a common packet analyzer that runs under the command line.

Rating
0 reviews
Pricing
Open source
The page you are looking for does not exist

Which is more popular?

Command Line Tools popularity
100% vs 0%
alternatives listed
22 vs 90

Base details

Website, pricing, platforms and company facts side by side.

l
lsof
tcpdump
Website people.freebsd.org tcpdump.org
Pricing
Open source
Listed in

Features and specs

What each product offers, as listed by its team.

l
lsof 0 features
tcpdump 5 features

No features have been listed yet.

  • Powerful packet capturing
    tcpdump offers comprehensive capabilities for capturing network packets, providing detailed insights into network traffic, which makes it a powerful tool for network diagnostics and analysis.
  • Wide compatibility
    Being a widely used tool, tcpdump is compatible with numerous operating systems, including Linux, Unix, and macOS, ensuring accessibility across different platforms.
  • Filter flexibility
    tcpdump supports a wide range of filtering options that allow users to capture specific types of traffic, ensuring efficient and targeted packet capture.
  • Command-line interface
    tcpdump is a command-line tool, which provides advanced users the ability to script and automate tasks, making it highly efficient for those familiar with command-line operations.
  • Free and open-source
    tcpdump is open-source software, which means it is freely available for use and can be modified and distributed by anyone, fostering a community of users and contributors.

Possible disadvantages

  • Steep learning curve
    For users unfamiliar with command-line interfaces and packet-level networking, tcpdump can be difficult to learn due to its complex commands and options.
  • Minimal graphical interface
    tcpdump lacks a graphical user interface (GUI), which can make it less accessible for users who prefer visual tools over text-based interfaces.
  • Limited analysis capability
    While tcpdump is excellent for capturing packets, it offers limited built-in analysis features, requiring additional tools for comprehensive analysis of captured data.
  • High resource usage
    Running tcpdump with extensive capture options or on high-traffic networks can result in significant CPU and memory usage, potentially impacting system performance.
  • Security risks
    tcpdump requires root or elevated privileges to capture packets, which could pose security risks if not managed correctly, especially on sensitive systems.

Analysis

An editorial look at what each product does well and who it suits.

l
lsof
tcpdump

Overall verdict

  • lsof (List Open Files) is a mature, battle-tested Unix/Linux utility that reliably reveals which files, sockets, and resources are opened by processes, making it an indispensable diagnostic tool for system administrators and developers.

Why this product is good

  • Provides comprehensive visibility into open files, network sockets, pipes, and devices tied to running processes
  • Extremely useful for troubleshooting 'device busy' errors, port conflicts, and locating processes holding onto deleted files
  • Highly portable across many Unix-like systems including FreeBSD, Linux, macOS, and Solaris
  • Long history of stable, well-maintained releases with extensive documentation and community support
  • Powerful filtering options let you query by user, process, port, file, or network connection

Recommended for

  • System administrators diagnosing resource and file-locking issues
  • Developers debugging network connections and socket usage
  • Security professionals investigating suspicious process activity and open network ports
  • Anyone needing to identify which process is using a specific file, directory, or port before unmounting or killing

No analysis of tcpdump yet.

Videos

Walkthroughs and reviews on video.

l
lsof 2 videos + Add
tcpdump 3 videos + Add

8 Basic lsof Commands Every Sysadmin Needs to Know

More videos

  • - HakTip - Network monitoring in Linux with lsof

Tcpdump - Protocol Review 5 (TCP)

More videos

  • - Tcpdump - Protocol Review 3 (UDP)
  • - Tcpdump - Protocol Review 4 (DNS) - Draft

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
l
lsof
tcpdump
100% 100%
0% 0%
13% 13%
87% 87%
100% 100%
0% 0%
0% 0%
100% 100%

User comments

Share your experience with using lsof and tcpdump. For example, how are they different and which one is better?

Log in or Post with

Reviews and articles

External articles and on-site reviews we used to compare the two products.

l
lsof no reviews yet
tcpdump no reviews yet

We have no reviews of lsof yet. Be the first one to post

Alternatives to lsof and tcpdump

When comparing lsof and tcpdump, you can also consider the following products.

  • htop

    htop - an interactive process viewer for Unix. This is htop, an interactive process viewer for Unix systems. It is a text-mode application (for console or X terminals) and requires ncurses. Latest release: htop 2.

    Compare htop to lsof or tcpdump:

  • Wireshark

    Wireshark is a network protocol analyzer for Unix and Windows. It lets you capture and interactively browse the traffic running on a computer network.

    Compare Wireshark to lsof or tcpdump:

  • Sysdig

    Sysdig is an open source, system-level exploration that capture system state and activity from a running Linux instance, then save, filter and analyze.

    Compare Sysdig to lsof or tcpdump:

  • NetworkMiner

    NetworkMiner is a Network Forensic Analysis Tool (NFAT) for Windows.

    Compare NetworkMiner to lsof or tcpdump:

  • vtop

    vtop is a graphical command-line tool that uses unicode braille to chart CPU and memory usage.

    Compare vtop to lsof or tcpdump:

  • netcat

    Netcat is a featured networking utility which reads and writes data across network connections...

    Compare netcat to lsof or tcpdump: