screensaver for two monitors

After learning the shell script to get started, slowly try to write some scripts to practice practiced hand, in this first simple learning to write a system memory monitoring.1, first of all to determine the need to take a look at the memory usage values, you can use the free command to operate650) this.width=650; "border=" 0 "src="/e/u261/themes/default/images/spacer.gif "style=" border:1px solid RGB ( 221,221,221) Background:url ("/e/u261/lang/zh-cn/images/localimage.png") no-repeat 50% 50%; "

PV command monitors execution progress of Linux commandsHttp://www.techweb.com.cn/network/system/2015-12-14/2241124.shtmlYum Install -y PVcp mysql-5.6. -LINUX-GLIBC2. 5-x86_64. tar. GZ mysql-5.6. -LINUX-GLIBC2. 5-X86_64AA|PV-TB >/dev/null0:xx:CentOS installed by Yum version of the PV command is 1.1, does not support the-a parameter, simply rely on the-BT parameter looks still a little tired, Ubuntu through apt warehouse PV version is 1.2rpm-qa| grep P

A simple Python script that monitors Redis performance has already talked about how to monitor memcached, and now incidentally how to monitor Redis. Let's start with the following information about monitoring redis: Redis Ping: Verify Ping Redis Alive: Check to see if the port is alive Redis connections: View the number of connections Redis blockedclients: Waiting on the number of blocked clients Connection utilization for Red

security analysts to preview the results using the SCUMBLR tool, so that they do not need to be taken directly from the site in a risky way. Scumblr , Sketchy and the workflowable through GitHub Open source software license release. It can be determined that many sophisticated attackers have left their discussion of attacks on a password-protected forum , the website operator will do a rigorous review of the Forum's visitors. But there are some so-called hackers who have a little bit of a conf

]:passwordcheck failedforuser (user1) apr2122:03:51localhostsshd[1499]:failed passwordforuser1from192.168.22.1port50591ssh2Apr21 22:03:52localhostsshd[1499]:failedpasswordforuser1from 192.168.22.1port50591ssh2apr2122:03:54localhostsshd[1500]: Receiveddisconnectfrom192.168.22.1:0:Depending on the source IP of the access log, we can set the iptables rule to the source, prohibit access to the server's port 22, or close the IP address;Temporarily only so much, little pride, give yourself a little se

[ $mem -gt70];then #如果内存使用高于70% Email notification echo "warm: $ip memoryis $mem" | mutt-s "Monitorreport" [emailprotected]fiif[ $hardused -le80 ];then #如果硬盘使用已高于80%The email notification echo "warm: $ip theharddrivecapacityismore80%" |mutt-s " Monitorreport "[emailprotected]fiforhardidin" ssh $ip iostat |grep^sd|awk ' {print$1} ';d o #先取盘符iostat = ' ssh $ip iostat-x|grep $hardid |awk ' {print$12} ' |cut-d '. " -f1 ' #取得io繁忙状态echo $iostatif [ $iostat -gt80];then #如果io繁忙高于80%, the email noti

The recently built SVN service does not know why the service is always turned off (if you do not know how to build SVN can refer to the SVN version control software under Linux ), so a daemon is implemented with shell scripts. Used to monitor if the SVN service is started, if the service is not present. Create a monitoring script svnmonit.sh#!/bin/sh#process name can be modifiedPro_name=Svnserveport=58652Rep_dir=/www/Svndata while true; Do #get the number of $pro_name processes with PSnum= ' ps

Here are the various types of memory:Virt:virtual Memory Usage1. The process "required" virtual memory size, including the library, code, data, etc. used by the process2, if the process to apply for 100m of memory, but the actual use of only 10m, then it will grow 100m, rather than the actual use of the volumeRes:resident Memory Usage resident RAM1. The memory size currently used by the process, but does not include swap out2. Sharing with other processes3, if the application of 100m of memory,

The recent use of a partition on the line was too fast, and Nagios did not turn on the monitoring of partition usage, taking a few minutes to temporarily write a script to use first. The usage is relatively simple, directly on the code:Note: The SendEmail script used in the code is an e-mail program developed by Perl that can be found online or using other email scripts#!/bin/bash#--dir:monitoringofthemountpoint#--critical:criticalvalue#--warning: warningvalue#--ip[$#-eq0]{ echo "$0[--dirpath--c

The examples in this article describe the way JavaScript monitors variable changes. Share to everyone for your reference. The specific analysis is as follows: You should know that in C # for attributes, files, etc. change monitoring is very simple, because there are commissioned (event), FileSystemWatcher and other good dongdong support. So how do you monitor changes to variables in JavaScript? First, I followed the C # attribute to the JS operation

second column of information, the return state thrown into the black hole. sleep2cd/soft/tomcat/bin//bin/shshutdown.shsleep2/ bin/shstartup.sh #echo "EN" echo$ (date) "Tomcatrestart ">>/var/log/log.log# Write Log sleep60# Wait after the reboot is complete, and then try again if!curlit;then# if you still can't access it,: echo "@" echo$ (date) "failed!" >>/var/log/log.log# write Tomcat still restarts the failed log fisleep 180fi}sleep3# run the script before it starts to work (prevent a misca

configuration parameters that enable JMX remote connections.GC-related parameters:Information files used to generate the memory heap (which can be analyzed with two tools provided by IBM):A few more parameters are added below to generate GC related files:-verbose:gc-xx:+printgcdetails-xx:+printgcdatestamps-xloggc:/var/log/hive/gc.hiveserver2.log-' date+ '%y%m%d%h%m%s '-XX:+ Heapdumponoutofmemoryerror-xx:heapdumppath=/var/log/hive-xx:+disableexplicitgc-xx:+usecompressedoopsAfter adding, restart

'File=open (Base)F=open (Wbase, "w")#raw_command = raw_input ("Input command:")While 1:Lines = File.readlines (10000)If not lines:BreakFor line in lines:Serverm=line.split (', ') child = Ssh_command (serverm[0],serverm[1],serverm[2], ' df-h ')# match Pexpect. Eof Child.expect (pexpect. EOF)# output command result.#print serverm[1]+ "Disk space as follows:" #print Child.beforeF.write (Serverm[1])F.write (Child.before)F.close ()File.close ()ReadLine (Wbase,date)def readLine (base,date):File = ope

) main (type)If you perform the following error in the test times:[email protected] python]# python check_mysql_custom.py slave_statusTraceback (most recent):File "test.py", line +, in con = mysql.connect (user= ' Zabbix ', passwd= ', port=3306)File "/usr/local/lib/python2.7/site-packages/mysqldb/__init__.py", line Bayi, in ConnectReturn Connection (*args, **kwargs)File "/usr/local/lib/python2.7/site-packages/mysqldb/connections.py", line 193, in __init__Super (Connection, self). __init__ (*args

Tags: CPU alarm sendmail Alarm Shell CentOS 7.2Operating system: CentOS 7.2SendMail Automatic Alarm#完成时间: 2018.04.16#!/bin/bash#CPU 1,5,15###########################################################If [-e Detection_script]ThenMkdir-p/detection_script/Fi############################################################Dt=/detection_script/datetime.txtCl=/detection_script/cpuload.txtct=/detection_script/cputime-$ (date +%y-%m-%d). txtC3=/detection_script/cpu3.txtDate > $dtUptime | awk ' {print $6,$7,$8,$

Windows can map multiple monitors to virtual desktops so that we can use this to design a handy application. PowerPoint, for example, gives full play to the dual-monitor advantage (which most laptops support), it can play slides on one monitor, and a note on another displays to control the playback process, so that users can make business speeches with should also launch. So how do we develop this application? This article will show you if you use De