linux web scraper

Sometimes obviously on Windows is very normal, and on Linux is not normal, on the Windows post Submission Request.request.getParameter () has a value, and on the liunx there is no value.I started thinking it was my Tomcat version and found that it wasn't, and Tomcat was basically the same on Linux and Windows.This way I suspect that it is not my configuration file error, the Conf server.xml file configurati

first thing to do is to put the driver jar package of the database into the Lib directory of the Tomcat server.1. Upload the drive jar package of the Oracle database to the LIB directory of the Tomcat serverAs shown in the following:　　2. Upload the packaged war package to the WebApps directory of the Tomcat serverAs shown in the following:Upload the war package to the WebApps directory　　Upload successful　　Tomcat server automatically unzip the war package　　Check to see if the Tomcat server autom

Web browser WebKit in Embedded Linux-general Linux technology-Linux programming and kernel information. For details, refer to the following section. You will definitely need to use it in the future. First, write it down. Most WebKit uses this Http://webkit.org/ Compiled in Ubuntu Based on QT. Http://mondaybynoon.

changed file take effect immediately; Execute command: source/etc/profileB. Enter the Tomcat bin directory to execute the command./startup.shC. Visit 127.0.0.1:8080 to see if the Tomcat home page appearsIn general, the environment variables of JDK and Tomcat we will write together at the end of the/etc/profile file, add the following:Java_home= "/usr/local/jdk1.7" class_path= "$JAVA _home/lib: $JAVA _home/jre/lib" path= ".: $PATH: $JAVA _home/bin" Catalina_home= "/usr/local/tomcat1.7" Export Ja

Web Linux There are many remote Linux servers to build the lamp environment, MySQL library tables are the same, each installed a web system there are some differences.Each system is cumbersome to manage, and you need to log on to each server's Web page to modify the configur

Linux crawls web pages by using curl or wget commands. Curl and wget commands are supported on Linux and Windows platforms. Curl and wget support protocols Curl supports HTTP, https, FTP, ftps, SCP, telnet, and other network protocols. For more information, see man curl. Wget supports HTTP, https, and FTP protocols. For more information, see man wget. Download a

linux上部署web服务器1. Download the source code from the Apache website.2. Uninstall the original existing httpd.3. Mount the CD ready to deploy httpd.4. Source code compilation installation httpd, unpacking, configuration (--prefix: Specify HTTPD program installation path,--ENABLE-SO: Start dynamic loading module,--enable-rewrite: Enable Web address re-function, for s

added to the path path by default, and must be manually incremented if installed through a compressed package.To know if this script is an error, you can enter: C:\Documents and settings\administrator>e:/svn/hooks/post-commit.bat on the cmd command line to test. The following message appears to indicate that the script executed successfully:C:\Documents and Settings\administrator>e:/svn/hooks/post-commit.batUpgrading ' e:\www\o135′:Version 15.The red part is the location of the repository, whic

Monitoring is typically implemented through scripting, and regular detection is performed using timed tasks.1. PortsLocal: Ss,netstat,lsofRemote: TELNET,NAMP,NC2. Number of local processesFor example:Lsof-i:80|wc-lPs-ef|grep nginx|wc-lNmap 192.168.220.139-p 80|grep open|wc-l3. View HTTP return codesReturn 200 is normal.[~]# curl-i-s-w "%{http_code}"-o/dev/null 127.0.0.1200[~]#4. How to impersonate a userWget,curl commandUse short program detection, for example: using PHP to write a program that

) Operations Engineer (OP): On-line (hosted to server)Duty:Installing a Linux ServerConfigure the Web serverDeploy Web sites written by programmers to Web serversTest2. Quickly build a Web server siteA. Installing the package[email protected] ~]# Yum repolist[

For Web browser problems in linux-general Linux technology-Linux technology and application information, see the following for details. [I = s] This post was last edited by hello666o at 3-4 3-4: 59 Virtual Machine network connection mode: Bridging Both the Virtual Machine firewall and selinux are disabled. Firefox

Installing Java1. Download the JDK for the Linux environment2. Upload the package to the Linux system and unzip itTAR-ZXVF Compressed Package name3. Configure environment variables and refresh the configurationExport java_home=/alidata/java/jdk1.8.0_111export path= $JAVA _home/bin: $PATHSource/etc/profileInstall tomcat1. Download the Tomcat package on the official website 2. The Java environment must be in

not complete the performance analysis, we also need to the server CPU, men analysis, in order to come to the conclusionSecond, WebbenchWebbench is a Web site stress testing tool under Linux that can simulate up to 30,000 concurrent connections to test the load capacity of a Web site. can go to google search, I am here to give a: http://soft.vpser.net/test/webben

code whether 200, if 10s did not return 200 status code, the alarmFinally, let Linux execute the script at timed intervals:Crontab-e*/10 * * * */home/admin/app/bin/webstatus.shThis will be done every 10 minutes.This is another script notation:#!/bin/bashWhile Read URLDoEcho ' Date 'result= ' Curl-o/dev/null-s-M--connect-timeout 10-w%{http_code} $URL 'Test= ' echo $result 'if [["$test" = "200"]]Thenecho "$URL is OK"Elseecho "Test Err"/usr/sbin/sendmai

/ntopng/ntopng.conf-g=/var/tmp/ntopng.pid # # #指定运行所用进程号文件--local-networks "192.168.1.0/24,192.168.10.0/24" # # #指定本地子网段--interface eth0 # # #指定监听eth0网卡上的流量--user Ntopng # # #指定运行服务所使用账户--http-port 3333 # # #指定web展现的服务端口, if you do not specify a default of 30007, Start ntopng serviceNote that before running ntopng, be sure to start the Redis service first, and Redis provides key value storage for Ntopng# service Redis Start#/usr/local/ntopng/bin/ntopn

Russian security researchers have discovered a Linux Web Servers botnet that uses traditional Windows botnets to spread malicious programs. Denis Sinegubko, an independent security researcher at Magnitogorsk in Russia, pointed out that all infected machines that have been carefully checked are dedicated servers or virtual dedicated servers running legitimate websites. In addition to running Apache webserve

Description Operating system: CentOS 5.X 64-bit Web server: 192.168.21.127, 192.168.21.128 Sites: Bbs.111cn.net and Sns.111cn.net deployed on two Web servers To achieve the purpose: Add two servers (main main mode) to achieve Web server load balancing through haproxy+keepalived Architecture Planning:

Linux Web Server Web site Failure Analysis Common Command article directory [hidden] system connection Status: Web site Log Analysis 1 (Apache): Database of the system debug analysis of the System Connection status chapter:1. View TCP connection Status netstat-nat |awk'{print $6}'|sort|uniq-c|sort-Rnnetstat-N | Awk'/^t

/bin/apachectl start [Root@www ~]# NETSTAT-ANPT | Grep:80 TCP 0 0:: £ º::* LISTEN 21669/HTTPD If you want the HTTPD service to run automatically after the server is powered on, you can write the corresponding startup command to the "/etc/rc.d/local" file. 2.httpd.conf configuration file This article URL address: http://www.bianceng.cn/OS/Linux/201410/45503.htm The httpd.conf file is the primary configuration file for the HTTPD service, which con

open port 25 for communication on the client, otherwise the random port will be used.11. Specify the source addressSuppose your machine has multiple addresses, and you want to explicitly specify which address to use for external data traffic. We can use the-s option in Netcat to specify the IP address.Server-sideNc-u-L 1567 ClientNc-u 172.31.100.7 1567-s 172.31.100.5 > File.txtThe command binds the address 172.31.100.5.This is just some examples of using netcat.Other uses include:Use the-t opti