traffic server

Because many VPS or server are limited traffic, but many service providers do not provide a detailed flow chart, such as daily traffic table, so it is certain that some people would like to know how much traffic on their servers.Vnstat is a very useful server

About Linux server traffic and Concurrency Control This article describes how to use the tc tool to implement advanced traffic control for Linux. The TC traffic control tool has been incorporated into the kernel since Linux2.2 and has very powerful functions. If you need to build a high-performance Linux gateway, this

:17989373908 (17.9 GB) TX bytes:24055536418 (24.0 GB) Interrupt:32 Then your VPS or server NIC iseth0 Then generate the vnStat database: /usr/bin/vnstat -u -i eth0 If your Nic is noteth0To change the network card name and/etc/vnstat.confOfInterface "eth0"Your nic name. Then you can start vnStat: vnstatd -d There is a problem with this method, that is, occasionally the traffic statistics will be st

In daily operations, you will encounter a spike in server bandwidth causing site anomalies. As operations personnel, we need to be able to understand the server network card traffic situation, the network card traffic is observed by which programs are occupied.Today, we introduce a tool for viewing

Tutorial Purpose: Erecting Ntopng network traffic monitoring ServerDate: August 20, 2015Contact e-mail: [Email protected]Q q Group: 1851 1570151CTO Blog Home: http://990487026.blog.51cto.comOpen source community, have you more exciting!Brief introductionDue to the NTOP network traffic monitoring tool, it is not possible to visually see what the device on which subnet to use what protocol and port from where

Suning Tesco server supports EXP cipher suite for ssl freak attacks to decrypt communication traffic (including poc) Suning Tesco server is vulnerable to ssl freak attacks because of its support for EXP cipher suites. intermediary users can decrypt communication traffic online (obtain sensitive information such as logi

This article may be helpful if you think that a gigabit Nic on an intranet server cannot meet your switching needs.In fact, I have never thought about writing this article before, because I had an interview with a well-known domestic video website two days ago. I had the following question: "I will give you a server with four Gigabit NICs, how can I achieve the maximum 4G

The Traffic Server reports a severe vulnerability and the user should upgrade it as soon as possible. For messages from Apache, any version of Apache Traffic Server that has been released earlier has a serious vulnerability. You are strongly urged to upgrade to version 3.0.4 or 3.1.3 immediately. You can download the

Sometimes we need to look at the network card traffic on the server in real time, here I write a shell script. The script uses a while true "dead loop", every 10s from "/proc/net/dev" to take a value and calculates the average bandwidth within 10s based on the difference within 10s; Press CTRL + C to stop execution. Scripts are compatible with CENTOS6 and 7, the scripts are not too complex, and the annotati

Release date:Updated on: Affected Systems:Netmechanic ICA netdemo-4.5.1Unaffected system:Netmachica netde00004.6.1Description:--------------------------------------------------------------------------------Bugtraq id: 52196 Netdemo-http Server provides standard HTTP services on a Windows workstation or Server. The default. nd source code leakage problem occurs when netdester verifies malformed http get requ

"-" "-"124.115.4.18--[08/dec/2010:15:44:25 +0800] "get/static/js/jquery.lazyload.js http/1.1" 200 1627 "-" "-"You need to output three metrics: "Number of visits" Access * Single File size "file name (with URL possible)".Solution, the file name is extracted by awk, the size of the files, the number of accesses to the array, and the statistics of the traffic, and the final sort output.The code is as follows:[[email protected] data]# awk ' {a[$7] + + $

Sometimes we need a more real-time view of the network card traffic on the server, here I wrote two small scripts, one with the shell (first write, only one network card can be viewed at a time), the other with Python (after the write, one can view multiple network cards). The script uses a while true "dead loop", every 10s from "/proc/net/dev" to take a value and calculates the average bandwidth within 10s

View shell scripts for Linux server network trafficWhen uploading a large number of files, you can use this script to implement monitoring!#!/bin/sh## #统计5s内的平均流量, if[ "$" = "];thenecho-" in megabytes e "\nuseinterface_nameafterthescript,like \ "$0eth0\" ... \ n "exit-1fiecho-e" \n startmonitoringthe$1,press\ "ctrl+c\" tostop "echo--- -------------------------------------------------------#ls /etc/sysconfig/network-scripts/|grep ifcfg|cut-d "-" -f2whi

Suspect server has abnormal traffic troubleshooting journalFirst, use Ifconfig to view network card traffic[Email protected] ~]# ifconfigEth4 Link encap:ethernet HWaddr 00:50:56:0a:a6:e9inet addr:192.168.1.91 bcast:192.168.1.255 mask:255.255.255.0Inet6 ADDR:FA70::220:58AF:FABA:6E8/64 Scope:linkUp broadcast RUNNING multicast mtu:1500 metric:1RX packets:21148074982

DDOS is crazy recently The module mod_evasive in Apache that prevents DoS attacks. In lighttpd, mod_evasive can also be used to limit the number of concurrent connections to prevent DDOS attacks.In lighttpd. add the following code to the conf file to enable mod_evasive. This restriction is not enabled for downloading zip files, mp3 files, and other files. Otherwise, the website cannot be connected when the user downloads more than two files, affects user experience.Server. modules = (......"Mod

Reference: http://oss.oetiker.ch/mrtg/doc/mrtg-nt-guide.en.html Monitored end:1. Add the SNMP service to the monitored machine as follows:Start → set → Control Panel → add or delete programs → Add/Windows Components (a) → management and monitoring tools → Simple Network Management Protocol (SNMP ).Note: During installation, you must enter the Windows system disk.2. Configure the SNMP Service as follows:Start → run → services. msc → locate the SNMP service → double-click to open → Add a group of

One, the IP attribution database to export the required address segment listSecond, installation IpsetThird, establish access whitelistIpset Create Access Hash:netIv. Importing IP addressesUse Strict;open INPUT, "Output.txt" and while (V. Setting iptables rulesIptables-a input-m set--match-set access src-p UDP--destination-port 53-j acceptiptables-a input-p UDP--destinati On-port 53-j DROPThis article is from "Ruyi Spirit Pro" blog, please be sure to keep this source http://417722381.blog.51cto.

= = "MB" and Send_type = = "MB":if int (receive_num) >= and int (send_num) >= 40:With open ('/opt/scripts/iftop.log ', ' a ') as F:RESULT1 = "%s%s"% (Datetime.datetime.now (), header)Time_now = str (Datetime.datetime.now ())F.write (' \ n ' + ' ========================================================= ' + ' \ n ' + time_now + ' \ n ' + liuliang[1])if Receive_type = = "GB" and Send_type = = "GB":With open ('/opt/scripts/iftop.log ', ' a ') as F:RESULT1 = "%s%s"% (Datetime.datetime.now (), header