python network monitoring

First, download the websiteWww.ex-parrot.com/pdw/iftop/download/iftop-0.17.tar.gzSecond, iftop related parametersCommon parameters-I set the monitoring network card, such as: # Iftop-i eth1-B displays traffic in bytes (default is bits), such as: # Iftop-b-N Causes the host information to display IP directly by default, such as: # Iftop-n-N causes port information to be displayed by default directly, such as

Default Linux templates do not have a trigger for the NIC, click on the graph in monitoringSelect a host, graphics select network traffic on eth0650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M02/7F/8D/wKioL1civ77iEyX5AAEcYj89x9E918.png "title=" 1.png " alt= "Wkiol1civ77ieyx5aaecyj89x9e918.png"/>If you need to alarm traffic, you need to manually add the triggerThe steps are as follows:Click Configuration---host, find a host, click Trigger650)

Zabbix SNMP interface template, found that the Zabbix sampling time is 1 minutes, in our due to large flow, quickly cleared, and sometimes counted 0 after the new value, more than the last count, Zabbix thought not clear 0, The direct subtraction is divided by the time interval, resulting in "the illusion of a steep drop in network traffic".After finding the reason, the rest is good, and what we need is to use the OID data of counter64.Export Templat

Tool 1 SAR The SAR command is included in the sysstat toolkit and provides numerous statistics about the system. Its commands vary in different systems. Here we only talk about its network data monitoring parameters. Sar-N [Dev | EDEV | sock] interval CNT The SAR provided by some systems supports statistics based on network interfaces. This command can view the n

Network Status Monitoring Ethereum (centralised) network status monitor (sometimes referred to as "Eth-netstats") is a network-based application that monitors the health of testnet/mainnet through a set of nodes. Checklist To list your nodes, you must install the client information relay, a node module. The instructio

]} 'LISTEN 3Established 3 Tcpdump Install Yum install-y tcpdumpGrab Bag tool: tcpdumpUsage: TCPDUMP-NNThe first n indicates the IP display, and if you do not add N, the host name will be displayed.Listening for specified NICTcpdump-nn-i eth0[Email protected] ~]# tcpdump-nn-i eth0Listening on the specified portListening to the web port[[email protected] ~]# TCPDUMP-NN Port 80Monitor NIC Eth0 Port 80[Email protected] ~]# tcpdump-nn-i eth0 Port 80Do not listen on port 22Tcpdump-nn-i E

Vulnerability Analysis of an attack Tracing System (affecting customers' core network segments and sensitive monitoring information) The device is deployed on the Intranet. the device is directly connected to the host device monitored on the Intranet or the trunk route. The device needs to connect to the Internet and the cloud is connected.It's been a long time to let it go. You need to synchronize the rule

In the past, I wrote a monitoring script to check the IP addresses in an IP list every 10 seconds by using the ping command. If the IP addresses in an IP list cannot be accessed, send messages via the messenger message and use beep to send alarms. Run the script.Rem main. bat @ Echo off For/F "EOL =; tokens = 1, 2 * delims =" % I in (IP. txt) Do call: checkip % I % j 0 Echo -------------------------------------------------------------- Echo ---- the f

In the past, I wrote a monitoring script to check the IP addresses in an IP list every 10 seconds by using the PING command. If the IP addresses in an IP list cannot be accessed, send messages via the messenger message and use BEEP to send alarms. Run the script. Copy codeThe Code is as follows: rem main. bat @ Echo off For/F "eol =; tokens = 1, 2 * delims =" % I in (ip. TXT) do call: checkip % I % j 0 Echo -------------------------------------------

1. Gmetad layering;2. rrdcached Cache;3. Replace the SSD or other fast storage device to avoid HDD storage;Use a device with a large write cache, such as RAID, etc.If the cluster is small and the total amount of files generated is not very large, it is stored directly using RAM and regularly backed up.4. Use large chunks of logical volumes to avoid an update to an RRD file that results in multiple IO calls.5. File system-Level optimizations: noatime, etc.6. Web-side browsing, using a reverse pro

Reference documentshttp://my.oschina.net/lxcong/blog/150617Deployment of 1.masterReference previous 2015-09-032. Deploying Master/slavesA.master End1) Add the configuration to the master and add the following to the configuration file2) Generate Master checksum file3) Restart Smokeping serviceB. At the slaves end1) generate the Slaves checksum file2) Start slaves serviceConfiguration file Reference for MasterSmokeping page and RRD images support ChineseSmokeping page and RRD images support Chine

http://my.oschina.net/lxcong/blog/150617Deployment of 1.masterReference Front2. Deploying Master/slavesA.master End1) Add the configuration to the master and add the following to the configuration file2) Generate Master checksum file3) Restart Smokeping serviceB. At the slaves end1) generate the Slaves checksum file2) Start slaves serviceConfiguration file Reference for MasterSmokeping page and RRD images support ChineseSmokeping page and RRD images support ChineseChinese is not supported by def

Iftop This is a very useful tool. The following command monitors the wireless card in my NotebookIftop-i Wlan0For example, I'm playing music video now. Information displayed by Iftop:Basic Description:1. The main part of the screen represents data transfer between two machines, with arrows indicating direction. The three values on the right are each of the past 2 seconds. Average traffic for 10 seconds and 40 seconds.2 TX in the lower-left corner represents the emitted data. RX Indicates the dat

Ntop is very powerful, so I will not explain it here. There are a lot of introductions on the Internet and I will not repeat them here. The installation steps are as follows: 1. Adding apt sources Vim/etc/APT/source. listdeb http://backports.debian.org/debian-backports wheezy-backports main 2. Update apt Source: Apt-Get update 3. Install ntop package Apt-Get install ntop-y 4. Enter some information: Enter the name of the ENI to be monitored, such as eth1 Enter the ntop logon Password Ent

"Content-type"Content="Text/html;charset=utf-8"GT;"Status"style="font-size:100px;">HTML5 JS monitoring network online and offline

public static Boolean isnetworkconnected (context context){if (context! = null) {Connectivitymanager Mconnectivitymanager = (connectivitymanager) context.getsystemservice (Context.CONNECTIVITY_ SERVICE);Networkinfo mnetworkinfo = Mconnectivitymanager.getactivenetworkinfo (); if (mnetworkinfo! = null) {Netconnecttype = Mnetworkinfo.gettype ();if (Netconnecttype = = Connectivitymanager.type_wifi){//wifi m_preconnectnettype = Connectivitymanager.type_wifi; }else if (Netconnecttype = = connectiv

Installation:sudo add-apt-repository ppa: Ferramroberto/linuxfreedomlucidsudo apt-get update sudo apt-get install NetspeedThen in this way you can not find the launcher, so after research, this is only suitable for GNOME desktop use, if unity needs to install the following version:Unloadingsudo apt-get remove netspeedInstalling a unity-enabled versionsudo apt-add-repository ppa: Fixnix/netspeedsudo apt-get updatesudo apt-get Install Indicator-netspeed-unityStartIndicator-netspeed-unity It will t

System: Ubuntu 12.041. Installation tools and Dependency packagessudo apt-get install smokeping curl Libauthen-radius-perl Libnet-ldap-perl Libnet-dns-perl Libio-socket-ssl-perl Libnet-telnet-perl Libsocket6-perl Libio-socket-inet6-perl apache22. Direct start:[Email protected]:/etc/smokeping$ sudo/etc/init.d/smokeping Start* Starting Latency Logger daemon smokeping ERROR:/etc/smokeping/config.d/pathnames, line 1 : File '/usr/sbin/sendmail ' does not existRestart unsuccessful, read the wrong mess

: http://jmeter-plugins.org/downloads/all/PerfMon:Used to monitor server CPU, I/O, memory, etc.Serveragent-2.2.1.zipUsage: Perfmon is decompressed and placed on the server under test and shipped./startagent.sh, which works on port 4444 by default1. Check if Linux port is started: Netstat-apnt|grep 44442. Check the JMeter machine to the Linux firewall: Telnet IP 4444Jmeterplugins:Jmeterplugins-extras-1.1.2.zip, Jmeterplugins-standard-1.1.2.zip1, put jmeterplugins-extras.jar/jmeterplugins-standard

#import #import "AFHTTPSessionManager.h"@interface Afappdotnetapiclient:Afhttpsessionmanager+ (instancetype) sharedclient;@end#import "AFAppDotNetAPIClient.h"Static nsstring * const afappdotnetapibaseurlstring =@ "https://api.app.net/";@implementation Afappdotnetapiclient+ (instancetype) sharedclient {Static afappdotnetapiclient *_sharedclient =nil;Static dispatch_once_t Oncetoken;dispatch_once (oncetoken, ^{ _sharedclient = [[ afappdotnetapiclient alloc ] initwithbaseurl :[ nsurl urlw