1. nethogs1) NetHogs is an open source, free, network traffic monitoring tool under the terminal. It can monitor the network traffic of Linux processes or applications. NetHogs can only monitor the network bandwidth usage of the process in real time. NetHogs supports IPv4 and IPv6 protocols, local network cards and PPP links 2) Install apt-get install nethogscentos under debian and install yum install nethogs 3) Use the command nethogs to view traffic data in real time and view the function nodes corresponding to each process to monitor network traffic data Amount consumed 4) NetHogs provides interactive control instructions: m: Cycle between display modes (kb/s, kb, b, mb) Switch network speed display unit r: Sort by received. Sort by received traffic s: Sort by sent. Sort by sending trafficq: Quit and&am
1. How to use the monitoring tool? Summary of usage examples of monitoring tools
## Introduction: NetHogs is an open source, free, terminal-based network Traffic monitoring tool, which can monitor the network traffic of Linux processes or applications. NetHogs can only monitor the network bandwidth usage of the process in real time. NetHogs supports IPv4 and IPv6 protocols, local network cards and PPP links. 2) Install apt-get install nethogscentos under debian and install yum install nethogs under os. 3) Use the command nethogs to implement...
2 . Graphic tutorials for using several network traffic monitoring tools under Linux
Introduction: 1. nethogs1) NetHogs is an open source, free, network traffic monitoring tool under the terminal. It can monitor the network traffic of Linux processes or applications. NetHogs can only monitor the network bandwidth usage of the process in real time. NetHogs supports IPv4 and IPv6 protocols, local network cards and PPP links 2) Install under debian apt-get install nethogscentos and install yum install nethogs
3. Details introduction to HTML5 mobile applications 12 major features developed
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How to view system network traffic information in python
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HTML5 Practical Combat and Analysis: Introduction to WebSockets
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PHP study notes: php network traffic statistics system_PHP tutorial
Introduction: PHP study notes: PHP network traffic statistics system. PHP study notes: PHP network traffic statistics system Description: The code comes from the book "PHP and MySQL Web Application Development", and some of the codes have been modified. After my test, all of them can be used
Introduction: PHP collection is said to be very costly Server resources, which process consumes the most server resources? Recently, I am studying the PHP collection program. The collection process is to obtain data, then process the data, and finally put it into the database. I feel that excluding duplicate data and putting it into the database consumes the most server resources. What do you think? ? ------Solution--------------------The poster's question is almost certainly not going to have a clear and unique answer. It is related to the specific business content. Network traffic during collection, processing after data collection, writing database, Introduction: It is said that PHP collection consumes server resources. Which process consumes the most server resources? Recently, I am studying the PHP collection program. The collection process is to obtain data, then process the data, and finally put it into the database. I feel that excluding duplicate data and putting it into the database consumes the most server resources. What do you think? ? ------Solution--------------------The poster's question is almost certainly not going to have a clear and unique answer. It is related to the specific business content. Network traffic during collection, processing after data collection, writing database, 9. PHP study notes: php network traffic statistics system Introduction: PHP study notes: PHP network traffic statistics system. PHP study notes: PHP network traffic statistics system description: The code comes from the book "PHP and MySQL Web Application Development", and some of the codes have been modified. After my test, all of them can be used 10. Take full advantage of DB2 9.7’s deduplication device support Introduction: Deduplication can minimize storage requirements and speed backup and recovery , reduce network traffic, thereby significantly improving the database environment. However, until the release of DB2 v9.7 FixPack 3, if you need to optimize a DB2 backup image for a deduplication device, you must set multiple BACKUP DATABASE command options appropriately. Otherwise, the backup destination will be reset [Related Q&A recommendations]: objective-c - Is there a solution for iOS App traffic monitoring How does Android webview load a remote webpage and call the local (asset) js file
The above is the detailed content of Some summary of network traffic. For more information, please follow other related articles on the PHP Chinese website!

The five basic components of the Linux system are: 1. Kernel, 2. System library, 3. System utilities, 4. Graphical user interface, 5. Applications. The kernel manages hardware resources, the system library provides precompiled functions, system utilities are used for system management, the GUI provides visual interaction, and applications use these components to implement functions.

Linux maintenance mode can be entered through the GRUB menu. The specific steps are: 1) Select the kernel in the GRUB menu and press 'e' to edit, 2) Add 'single' or '1' at the end of the 'linux' line, 3) Press Ctrl X to start. Maintenance mode provides a secure environment for tasks such as system repair, password reset and system upgrade.

The steps to enter Linux recovery mode are: 1. Restart the system and press the specific key to enter the GRUB menu; 2. Select the option with (recoverymode); 3. Select the operation in the recovery mode menu, such as fsck or root. Recovery mode allows you to start the system in single-user mode, perform file system checks and repairs, edit configuration files, and other operations to help solve system problems.

The core components of Linux include the kernel, file system, shell and common tools. 1. The kernel manages hardware resources and provides basic services. 2. The file system organizes and stores data. 3. Shell is the interface for users to interact with the system. 4. Common tools help complete daily tasks.

The basic structure of Linux includes the kernel, file system, and shell. 1) Kernel management hardware resources and use uname-r to view the version. 2) The EXT4 file system supports large files and logs and is created using mkfs.ext4. 3) Shell provides command line interaction such as Bash, and lists files using ls-l.

The key steps in Linux system management and maintenance include: 1) Master the basic knowledge, such as file system structure and user management; 2) Carry out system monitoring and resource management, use top, htop and other tools; 3) Use system logs to troubleshoot, use journalctl and other tools; 4) Write automated scripts and task scheduling, use cron tools; 5) implement security management and protection, configure firewalls through iptables; 6) Carry out performance optimization and best practices, adjust kernel parameters and develop good habits.

Linux maintenance mode is entered by adding init=/bin/bash or single parameters at startup. 1. Enter maintenance mode: Edit the GRUB menu and add startup parameters. 2. Remount the file system to read and write mode: mount-oremount,rw/. 3. Repair the file system: Use the fsck command, such as fsck/dev/sda1. 4. Back up the data and operate with caution to avoid data loss.

This article discusses how to improve Hadoop data processing efficiency on Debian systems. Optimization strategies cover hardware upgrades, operating system parameter adjustments, Hadoop configuration modifications, and the use of efficient algorithms and tools. 1. Hardware resource strengthening ensures that all nodes have consistent hardware configurations, especially paying attention to CPU, memory and network equipment performance. Choosing high-performance hardware components is essential to improve overall processing speed. 2. Operating system tunes file descriptors and network connections: Modify the /etc/security/limits.conf file to increase the upper limit of file descriptors and network connections allowed to be opened at the same time by the system. JVM parameter adjustment: Adjust in hadoop-env.sh file


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