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Web site monitoring

News See also Recommended Links Perl Web Site Management Scripts Unix System Monitoring  
Requests for non-existing web pages   Cheap Web hosting with SSH access Sysadmin Horror Stories  Web Humor Etc

The web servers are usually monitored by simple scripts script which are triggered by cron, say, every 10 minutes.

Usually it executes a simple HTTP GET request for the IP address submitted as a parameter. A timeout causes the request to be aborted after three minutes and prompts an error message.

Parameters can include whether the server should be pinged, whether the gateway accessibility should be checked and finally whether the HTTP request needs to be submitted.

NEWS CONTENTS

Old News ;-)

Project details for PagePoker

PagePoker is a Perl package that defines a browser agent with many powerful features for monitoring and testing Web sites, including elaborate failure handling that can send email and trigger SNMP traps. It comes with three scripts that implement it for different uses: poke.pl, for single agents; pokes.pl, for many parallel agents, and pokehard.pl, for loadtesting and benchmarking.

Sitecheck

Sitecheck is a Perl-based Web site monitoring tool. It monitors a list of Web sites for availability, and checks for regex-based errors. It will also send emails to a list of recipients upon failure or error.

Moniker

Moniker is a Perl script that monitors services like HTTP, POP, NNTP, SMTP, and IMAP on local or remote servers anywhere on the Internet. It is intended to be simple to install and use, but is not intended to be a full-featured replacement for more advanced monitoring tools. It features the ability to use a CSV file to specify the servers, services to monitor, and as the email address to send a notification to.

pp_watchdog

pp_watchdog is a Perl script which monitors configured URLs, and searches for specified content in the response. If the content is not provided or the request times out, then a state in a statefile is incremented and a corresponding recovery-script is called. This script can be an individual recovery-script for the monitored Web server. An example is provided. The watchdog also sends an email notification to the admin. The script is safe to run as a cronjob if timeouts are used for the monitoring and a lockfile is used to prevent multiple instances. After a 4 unsucsessfull recover attempts, the script stops trying to respond to the broken server to prevent overloading the machine.

Upload/download

HotScripts.com CGI and Perl File Manipulation @1 File Upload & Download Manager

File Managements - Upload perl cgi scripts

Mega Upload -- Perl File Upload with Progress bar

FileUpload - Module for HTTP File Uploading.

[June 24, 1999] Five quick hacks to download the Web

This script allows people using browsers that are RFC1867 compliant to upload and download files directly from the web.

Language: Perl Platform: Unix, Windows

View Product Homepage

Download Complete Source Code, 0.010M bytes

Click file name to view online:
upload.pl, 10270 bytes
file.gif, 923 bytes
folder.gif, 916 bytes

File Upload version 6.0

This script allows Netscape users to enter a name for the file to be saved as, and then select a file on your computer to be uploaded to a WWW server. Administrators can configure which directory they will allow files to be uploaded inside the script to prevent tampering. This script is ideal for admin's who want to allow users to upload files, but don't want to issue separate telnet accounts or teach their users the ways of FTP.

Language: Perl Platform: Unix, Windows

View Product Homepage

Download Complete Source Code, 0.058M bytes

Click file name to view online:
file-upload.cgi, 13326 bytes
README, 14017 bytes
upload.html, 1669 bytes

www.pl


Perl library that allows your scripts to access and retrieve files through HTTP.

Language: Perl Platform: Unix

View Product Homepage

Download Complete Source Code, 0.013M bytes

Click file name to view online:
www.pl, 34818 bytes

Webget version 1.0

Given a URL on the command line (HTTP and FTP supported at the moment), webget fetches the named object (HTML text, images, audio, whatever the object happens to be). Will automatically use a proxy if one is defined in the environment, follow "this URL has moved" responses, and retry "can't find host" responses from a proxy in case host lookup was slow. Supports users & passwords (FTP), Basic Authorization (HTTP), update-if- modified (HTTP), and much more. Works with perl4 or perl5.

Language: Perl Platform: Unix, Windows

View Product Homepage

Download Complete Source Code, 0.042M bytes

Click file name to view online:
webget.pl, 43942 bytes

Problem tracking

See also Web-based problem tracking tools for Unix



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Vol 25, No.12 (December, 2013) Rational Fools vs. Efficient Crooks The efficient markets hypothesis : Political Skeptic Bulletin, 2013 : Unemployment Bulletin, 2010 :  Vol 23, No.10 (October, 2011) An observation about corporate security departments : Slightly Skeptical Euromaydan Chronicles, June 2014 : Greenspan legacy bulletin, 2008 : Vol 25, No.10 (October, 2013) Cryptolocker Trojan (Win32/Crilock.A) : Vol 25, No.08 (August, 2013) Cloud providers as intelligence collection hubs : Financial Humor Bulletin, 2010 : Inequality Bulletin, 2009 : Financial Humor Bulletin, 2008 : Copyleft Problems Bulletin, 2004 : Financial Humor Bulletin, 2011 : Energy Bulletin, 2010 : Malware Protection Bulletin, 2010 : Vol 26, No.1 (January, 2013) Object-Oriented Cult : Political Skeptic Bulletin, 2011 : Vol 23, No.11 (November, 2011) Softpanorama classification of sysadmin horror stories : Vol 25, No.05 (May, 2013) Corporate bullshit as a communication method  : Vol 25, No.06 (June, 2013) A Note on the Relationship of Brooks Law and Conway Law

History:

Fifty glorious years (1950-2000): the triumph of the US computer engineering : Donald Knuth : TAoCP and its Influence of Computer Science : Richard Stallman : Linus Torvalds  : Larry Wall  : John K. Ousterhout : CTSS : Multix OS Unix History : Unix shell history : VI editor : History of pipes concept : Solaris : MS DOSProgramming Languages History : PL/1 : Simula 67 : C : History of GCC developmentScripting Languages : Perl history   : OS History : Mail : DNS : SSH : CPU Instruction Sets : SPARC systems 1987-2006 : Norton Commander : Norton Utilities : Norton Ghost : Frontpage history : Malware Defense History : GNU Screen : OSS early history

Classic books:

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The Last but not Least Technology is dominated by two types of people: those who understand what they do not manage and those who manage what they do not understand ~Archibald Putt. Ph.D


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Last modified: March 12, 2019