squid proxy monitoring tool linux

Nload: the easy-to-use linux network bandwidth usage monitoring tool nload can display network bandwidth usage, reflecting inbound and outbound network traffic, and is easy to use. Install www.2cto.com: Common parameter of yum install nload:-t, in milliseconds. The default value is 500 milliseconds. '-M shows the bandwidth usage of multiple devices at the same ti

Document directory Installation Method 2: (lazy method, simplest) 1. Description of iftop Interface 2. iftop Parameters Common Parameters Some operation commands after entering the iftop screen (case sensitive) In Unix-like systems, you can use top to view system resources, processes, memory usage, and other information. To view the network status, you can use tools such as netstat and NMAP. To view real-time network traffic and monitor TCP/IP connections, you can use iftop.I. What is i

Mtop bitsCN.com, a tool for real-time MySQL monitoring in Linux Required modules: Curses DBI Distributed as Bundle: DBI: DBD: mysql Getopt: Long (Distributed with Perl 5) Net: Domain Part of libnet: # Perl-e use Curses # Perl-e use DBI # Perl-e use DBD: mysql # Perl-e use Getopt: Long # Perl-e use Net: Domain If there is no output, the module is installed. if

0,2)Stopsignal=quit; Signal used to kill process (default term)stopwaitsecs=10; Max num secs to wait b4 SIGKILL (default 10)Stopasgroup=false; Send stop signal to the UNIX process group (default false)Killasgroup=false; SIGKILL the UNIX process group (Def false)User=chrism; Setuid to this UNIX account to runRedirect_stderr=true; REDIRECT Proc stderr to stdout (default false)Stdout_logfile=/a/path; StdOut log path, none for none; Default AUTOSTDOUT_LOGFILE_MAXBYTES=1MB; Max # logfile bytes b4 ro

kilobytes (KB) Amount of memory used (in kilobytes) Number of packets received per second Number of packets emitted per second Total number of processes How to use ScriptsTo run this script automatically, you need to set up a cron task and set the frequency of the operation according to the actual situation. I find it a good choice to run every five minutes. The script does not need to run as root, so we do not have to assign high permissions to it.If an item in the

1, Lsof IntroductionLsof is a very practical system-level monitoring and diagnostic tool under Linux.It means List Open Files, and it's easy for you to remember that it's a combination of "ls + of" ~It can be used to list the file information opened by various processes, remember: Linux under "All Files",including but not limited to pipes, sockets, directories, d

Objective Glances can provide Unix and Linux performance experts with the ability to monitor and analyze performance data, including: CPU usage Memory usage Kernel statistics and running queue information Disk I/O speed, transfer and read/write ratios Free space in the file system Disk adapters Network I/O speed, transmission and read/write ratios Page space and page speed Processes that consume the most resources Computer Information and s

As one of the most common and important Linux system monitoring tools in daily management work, top can dynamically observe the system process status, so that the system administrator can understand the system resource status in real time. BKJIA recommended for editing: Linux monitoring tools Common hotke

Blktrace is a block layer I/O path monitoring and analysis tool. It can be used to gain an in-depth understanding of the I/O path, which is helpful for monitoring and performance tuning. 1. the architecture of blktrace is implemented in two parts: kernel space and user space. In kernel space, tracepoint is mainly added to the key points in the block layer I/O pat

: Supervisord: The service starts the Supervisord service, which calls itself to start the subroutine, responds to commands from the client, restarts the crash or exits the process, logs the output of the process, and collects event information. The configuration file for this service is/etc/supervisor/supervisord.conf Supervisorctl: The client's command-line tool, which provides a class shell interface through which you can connect to different S

Netdata: Powerful real-time performance detection tool, display address.GitHub Address: Https://github.com/firehol/netdataThis article describes the installation of Netdata under CentOS 6.71. Environment preparationYum Install GCC make git autoconf autogen automake pkgconfig Curl JQ Nodejs2, Installation Netdatagit clone https: // github.com/firehol/netdata.git--depth=1 CD Netdata . /netdata-installer. SH3, Control Netdata start, stopStart:/usr/sbin/

Vmstat is a tool used to view the usage of virtual memory (VirtualMemory). you can use the vmstat command to obtain information about processes, memory, memory paging, blocking IO, traps, and CPU activity. This article introduces the operating principle of virtual memory, and then introduces the usage and usage of vmstat... Vmstat is a tool used to view the usage of Virtual Memory. you can use the vmstat co

screen, and the flow graph bar will change depending on the scale;Press J or press K to scroll up or down the screen to display the connection record;Press 1 or 2 or 3 to sort by the three-column traffic data displayed on the right;Sort by Sort by > According to the host name or IP of the remote target host;Press O to toggle whether the current connection is fixed only;Press F to edit the filter code, this is translated by the saying, I have not used this!You can use the shell command, this is

LoadHttp://www.ruanyifeng.com/blog/2011/07/linux_load_average_explained.html[3] Iostat, Vmstat and Mpstat Examples for Linux performance monitoringhttp://www.thegeekstuff.com/2011/07/iostat-vmstat-mpstat-examples/[4] vmstat vmstat commandHttp://man.linuxde.net/vmstat[5] Linux vmstat Command real-combat detailedHttp://www.cnblogs.com/ggjucheng/archive/2012/01/05/2312625.html[6] Factors affecting the perform

.... m DB2FMP4, Refer:[1] Troubleshooting high I/O Wait in Linux--a Walkthrough on what to find processes that is causing high I/O Wait on Linux Systems[2] Understanding Linux system Load[3] Iostat, Vmstat and Mpstat Examples for Linux performance monitoring[4] vmstat vmsta

Monitorix Introduction:is an open source, free, powerful lightweight Linux system and network monitoring tool that collects information about systems and networks and displays them through a web interface.Written in Perl, using RRDtool to generate graphics and show on the web.Install for Centos,rhel,fedora1. Installing dependent packages # yum Install rrdtool rr

to limited time, in the latter several blog, will detail the real-time priority process, static priority process.Introduced a half-day, process and thread, mainly to introduce two system monitoring tools and a process viewing tool.1, real-time system monitoring Tool Dstat,1DSTAT[-AFV] [options:] [Delay [Count]]-A: Dis

(sometimes useful) –socket: Displaying network statistics –TCP: Displaying commonly used TCP statistics –UDP: Displays some dynamic data for the monitored UDP interface and its current usage More than that, of course, Dstat comes with a few plugins that extend its functionality to a great extent. You can view some of their usage by looking at the/usr/share/dstat directory, which are commonly used: -–disk-util: Displays the busy state of a time disk -–freespace: Dis

manage which users can access the Ntopng through the settings menu on the right-hand side of the top (the one on the gear icon).Ntopng offers a wide range of timelines, from 5 minutes to 1 years. You just need to click on the timeline you want to display. The chart itself can be clicked, and you can click it to zoom in.Of course, Ntopng can do more than the above picture shows. You can also integrate location and e-map services. On Ntopng's own website, there are paid modules available for use,

each connection is displayed;Press L to turn on the screen filtering function, enter the characters to filter, such as IP, press ENTER, the screen will only show this IP-related traffic information;Press L to toggle the scale on the top of the display screen, and the flow graph bar will change depending on the scale;Press J or press K to scroll up or down the screen to display the connection record;Press 1 or 2 or 3 to sort by the three-column traffic data displayed on the right;Sort by Sort by