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Topic: Apache (tune)

In the News (Mon 28 May 12)

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	ONLamp.com: Apache DevCenter
		A Day in the Life of #Apache Rich Bowen is back this month after a brief summer hiatus with his latest column based on his conversations on the IRC channel #apache.
		A Day in the Life of #Apache In Rich Bowen's latest column based on his conversations on the IRC channel #apache, he attempts to answer a question that comes up at least once a day, but which doesn't have one clear answer: whether to use Apache 1.3 or 2.0.
		A Day in the Life of #Apache In this latest installment in the series based on his conversations on the IRC channel #apache, Rich Bowen takes you on an interesting trip through the history of mod_imap, and why some modules hang around long after they're no longer in use.
	www.onlamp.com /apache (1733 words)

	apache 2
		Apache fails to filter terminal escape sequences from error logs that begin with the ASCII (0x1B) sequence and are followed by a series of arguments.
		If a remote attacker could inject escape sequences into an Apache error log, the attacker could take advantages of weaknesses in various terminal emulators, launching attacks against remote users including further denial of service attacks, file modification, and the execution of arbitrary commands.
		The Apache mod_disk_cache has been found to be vulnerable to a weakness that allows attackers to gain access to authentication credentials through the issue of caching HTTP hop-by-hop headers which would contain plaintext user passwords.
	www.icetalk.com /apache-2-N2374.html (1360 words)

	Five tips for configuring Apache
		We will examine the following strategies: tuning of Apache's accept() serialization, threading with Apache 2.0, SSL session caching with mod_ssl, optimizing the keep-alive timeout values, and examining server load to be able to tune the amount of requests the server can handle.
		Introduced in Apache 1.3.21 and in Apache 2.0, the AcceptMutex directive reveals a significant opportunity for performance tuning.
		The old Apache 1.3 model is represented with the prefork MPM and is the default MPM for 2.0 on Unix platforms.
	builder.com.com /5100-6387-1045523.html (885 words)

	The Llewellyn Encyclopedia: Health and Healing
		Apache tear drop is a form of fl obsidian.
		The Apache tear drops are also said to balance the emotional nature and protect
		The moonstone can act as a magical link so that your guides can communicate with you easier to know what your life path really is. The moonstone can hold charges in it, and may need to be cleansed occasionally.
	www.llewellynencyclopedia.com /subjects.php?gen_sbj=Health+and+Healing (3800 words)

	Apache :: Books :: p9
		It will also serve to "demystify" Apache and show readers just how easy it really is (some people are put off it because it is not run on wizards like IIS is, and involves command line stuff and configuration files).
		Apache: The Definitive Guide, written and reviewed by key members of the Apache Group, is the only complete guide on the market today that describes how to obtain, set up, and secure the Apache software.
		Apache was originally based on code and ideas found in the most popular HTTP server of the time: NCSA httpd 1.3 (early 1995).
	www.dayanahost.com /books_software.cfm/Books/Apache/9 (2137 words)

	Apache HowTo (Site not responding. Last check: 2007-10-20)
		Also all Apache webmaster will retain custom configuration to be able to tune the settings to their real needs.
		When DirectoryIndex is configured, Apache will create sub-requests for each of the local-url's specified in the directive, to determine if there is a local file that matches (this is done by stat-ing the file).
		Caution: If Apache is configured to serve static pages for a web application it bypasses any security contraints you may have configured in your web application web.xml config file.
	jakarta.apache.org /tomcat/tomcat-4.1-doc/jk2/jk/aphowto.html (2476 words)

	Fixing an overloaded web server
		When Apache was tuned to start 150 or more server processes, the whole system became unresponsive as soon as the benchmark was started.
		When Apache was tuned to start 100 server processes, it ran sluggishly, but at least it ran.
		After Apache was tuned to allow 250 server processes, it responded just as quickly as thttpd when a fourth computer was used to fetch a small html file from the web server.
	alumnus.caltech.edu /~dank/fixing-overloaded-web-server.html (1874 words)

	ProQuest Information and Learning - Apache Administrator's Handbook
		Apache 2.0 is the first major release of Apache since its inception, and represents a complete change in Apache architecture-one requiring that administrators and developers learn new procedures and techniques for configuring and maintaining the Apache server.
		Apache 2.0 is the first majore release of Apache since its inception, and represents a complete change in Apache architecture--one requiring that administrators and developers learn new procedures and techniques for configuring and maintaining the Apache server.
		Apache Administrator's Handbook is a practical hands-on guide to the installation, configuration, and administration of the Apache Web server.
	proquest.safaribooksonline.com /?xmlId=0-672-32274-9&uiCode=GALWAY (745 words)

	Virtual Threads: Tuning Apache, part 1
		There was a link on Digg a couple of days ago to an article about how to tune Apache so as to survive a Slashdotting.
		Because each Apache process consumes a bit of memory, you can only fit a certain number in memory before the web server begins to violently thrash, swapping things between RAM and the hard drive in a futile attempt to make it work.
		Apache 2.2, from what I understand, includes an experimental module that allows keep-alives to be handled very efficiently.
	virtualthreads.blogspot.com /2006/01/tuning-apache-part-1.html (2289 words)

	AR System 5.1.2 Mid-Tier: Performance Tuning
		Please be sure to refer to your Apache documentation as an additional resource, since new versions of Apache have different configuration files and differ on how it is set up.
		On the Apache website there is an article on performance tuning the Apache webserver, which can provide some useful guidelines: http://httpd.apache.org/docs/misc/perf-tuning.html.
		In general, Apache is very self-regulating, so most sites do not need to adjust these directives from their default values.
	www.remedy.com /customers/dht/archive/12-15-2003.htm (1674 words)

	Re: squid performance
		I tried to use the minspareservers and maxspareservers and the other similar parameters to let apache tune this automatically and found it didn't work out well with mod_perl.
		What happened was that starting up perl processes was the single most cpu intensive thing apache could do, so as soon as it decided it needed a new process it slowed down the existing processes and put itself into a feedback loop.
		I prefer to force apache to start a fixed number of processes and just stick with that number.
	www.mail-archive.com /modperl@apache.org/msg03622.html (267 words)

	Tuning LAMP systems, Part 1: Understanding the LAMP architecture
		There is a symbiotic relationship between the application and the back-end servers: a poorly tuned server causes even the best application to fail under load, and there's only so much tuning one can do to a server before a badly written application slows to a crawl.
		Much of the tuning to follow, especially that pertaining to the database, focuses on avoiding disk access because of the relatively high latency it incurs.
		Tuning them is much different than tuning Linux because you need to constantly revisit the parameters as the traffic volumes increase, the read/write distributions change, and the application evolves.
	www.ibm.com /developerworks/linux/library/l-tune-lamp-1 (3127 words)

	Amazon.ca: Editorial Reviews Books: Apache Web Server Administration and e-Commerce Handbook (Site not responding. Last check: 2007-10-20)
		Apache has another virtue not quite so common in the open source world: it is simple enough that any reasonably competent computer user can master it.
		Apache and the other open source products include with their distributions not only the executable object code, but also the source code files from which it was created.
		Apache, you see, is typically found with many instances of itself running on the same machine, not unlike the multiple heads of the hydra.
	www.amazon.ca /exec/obidos/tg/detail/-/books/0130898732/reviews (4727 words)

	OpenNET: статья - Увеличение производительности (apache, sendmail, samba, kernel, ...
		Subj : Увеличение производительности (apache, sendmail, samba, kernel, i/o) ------------------------------------------------------------------------------- Apache: -------- If you are experincing long delays while "Waiting for reply...." with Apache servers you may try the following hack I use frequently to speed up your systems performance.
		Apache comes with a limit of 256 Child Processes defined in its hard server limit (in the source code).
		This can kill apache when it is used for a very very busy site.
	www.opennet.ru /base/net/tune_all.txt.html (1494 words)

	mod_perl: Choosing the Right Strategy
		A better approach is to run two servers: a very light, plain Apache server to serve static objects and a heavier mod_perl-enabled Apache server to serve requests for dynamic (generated) objects (aka CGI).
		At the beginning there were two servers: one plain Apache server, which was very light, and configured to serve static objects, the other mod_perl enabled (very heavy) and configured to serve mod_perl scripts and handlers.
		During peak loads, Apache will spawn more processes and use RAM that the database server might have been using, or that the kernel was using on its behalf in the form of cache.
	perl.apache.org /docs/1.0/guide/strategy.html#Adding_a_Proxy_Server_in_http_Accelerator_Mode (7144 words)

	Adobe - Developer Center : Performance-tuning Flash Media Server 2 for live webcasts using Linux
		It is important to configure Apache to handle the peak user load as efficiently as possible—to ensure that users are able to connect to your webcasts.
		If you find that Apache is running out of connections, or cannot keep up with connection loads, there are many online resources and websites filled with tips and tricks for performance tuning the Apache Web Server.
		The tuning changes we made up to this point—adjusting the maximum number of file descriptors and open files, as well as updating configuration settings for Flash Media Server and Apache Web Server as described—allowed Flash Media Server to sustain over 1300 concurrent users with no audio degradation in our testing.
	www.adobe.com /devnet/flashmediaserver/articles/performance_tuning_webcasts.html (1956 words)

	VARIOUS ARTISTS 3930412 Apache Mania ***
		There are some very original and enjoyable versions of Jerry Lordan's "Apache" here, but mostly the tracks are just Shadows clones, deviating from the original in inconsequential ways.
		The relatively dry guitar sound and the bongos, along with some intriguing plucked tweaks, and the electric chords instead of acoustic, separate this from the pack.
		"Apache" was issued as a single with "Ram-Charger" on the B-side.
	reverbcentral.com /reviews/comp/apache4895.html (911 words)

	Free Proxies Blog » Free-Proxies Guide to Performance Tuning Apache for mod_perl and Cgi-Proxy
		I find that with cgi proxy, having plenty of ram is a necessity, and that tuning your apache maxclients, read timeout, keepalive timeout, requests per child, and max keepalive requests are essential to a properly functioning server.
		The default settings of apache are pretty good for lightly trafficked servers to improve the response time the end user perceives, as well as supporting all the options and features a webmaster might want to use.
		You may think this is not under your control, but actually, you can reduce the time apache spends on all three parts by setting up Squid to run as a reverse proxy (also known as web server acceleration mode).
	www.freeproxies.org /blog/2006/09/03/free-proxies-guide-to-performance-tuning-apache-for-mod_perl-and-cgi-proxy (2855 words)

	Benchmarking and tuning Apache servers - Program - Apache - Builder AU
		There are a number of little things that can be done to tune Apache performance and to lessen its impact on system resources.
		By default, Apache allocates a maximum number of 256 simultaneous client connections, or 256 processes (one to serve each request).
		Testing a stock Apache configuration (MaxClients is 256, ServerLimit is 256, KeepAliveTimeout is 15) using ab configured to make 1000 requests with a concurrency of 100 consecutive requests would be as follows.
	www.builderau.com.au /program/apache/soa/Benchmarking-and-tuning-Apache-servers/0,339028364,339271881,00.htm (903 words)

	Gentoo Linux Documentation -- Apache 2: Remote denial of service attack
		A bug in Apache may allow a remote attacker to perform a Denial of Service attack.
		The Apache HTTP Server Project is an effort to develop and maintain an open-source HTTP server for modern operating systems.
		On 64 bit systems with more than 4GB of virtual memory a possible integer signedness error could lead to a buffer based overflow causing Apache to crash and under some circumstances execute arbitrary code as the user running Apache, usually "apache".
	www.gentoo.org /security/en/glsa/glsa-200407-03.xml (215 words)

	SWsoft – Forums - Recompile Apache and Tune Plesk/Apache/FreeBSD (Site not responding. Last check: 2007-10-20)
		This is optional, and you don’t have to do this, however adding support for the firewall will save you from having to do this at some point in the future if you wish to block a connecting client.
		The reason we add this is that when you have a high load server, the Plesk PSA control panel will slow down, halt, and generally freeze when you try to add a new domain when the OS runs out of semaphores.
		Apache uses a lot of mbufs, which are memory buffers.
	forum.plesk.com /showthread.php?s=99a808b39fdc05b37ee28dc84d3a9bee&threadid=8280&goto=nextoldest (2177 words)

	MySQL / apache tuning (Site not responding. Last check: 2007-10-20)
		I need some pointers on tuning a server.
		I am noticing that the box is using swap space, so obviously some changes need to be made.
		The forum in question has over 18,000 members, tens of thousands of posts, and is updated 24/7 - so I'm thinking a table optimization wouldn't hurt, but I'm looking for ways to tune the mysql process itself.
	lists.freebsd.org /pipermail/freebsd-isp/2003-June/000566.html (245 words)

	Iridium Jazz Club (Site not responding. Last check: 2007-10-20)
		The sophistication of the Fort Apache sound is highlighted by the group’s ability to bring a jazz flexibility to the Latin Rhythm section.
		Firedance (Milestone), Fort Apache's latest release was recorded in February 1996 at Blues Alley, in Washington DC and is the first live recording of the ensemble as a Sextet.
		Steve Berrios holds the third longest tenure in the Fort Apache Band and like Andy Gonzalez is considered by his peers to be the premiere Latin jazz drummer on the scene.
	www.iridiumjazzclub.com /bio.php?id=344 (1059 words)

	mTUTE! .:: Info
		After the installation is complete you should see the Apache Monitor icon on your system tray next to the clock.
		We are there, but not quite, we are going to have to fine tune Apache to suit our needs a little better.
		We have Apache setup to serve web pages from our computer, but we will give it our own location to serve the files.
	www.mversion.com /tute/s02_apache.php (321 words)

	DaveNet : Apache (Site not responding. Last check: 2007-10-20)
		If I were to become an Apache developer, I know that if I want to compete with The Apache Software Foundation, no matter how powerful they get, I can do it.
		This safety for developers is a key feature for a platform, and it's why Apache is doing so well, while Microsoft is losing developers to Java and open source.
		The Apache license is a free grant of technology, with the IP constraints where they belong, on trademarks.
	davenet.smallpicture.com /2001/08/15/apache.html (1103 words)

	Apache Week.
		Patches for bugs in Apache 1.3.1 will be made available in the apply_to_1.3.1 subdirectory of the patches directory on the Apache site.
		In Ballmer: Microsoft taking notice of free rivals Linux, Apache, the Microsoft president is quoted as saying he is "worried" about the growth of open-source operating systems, but that at the end of the day the total cost of a project is more important than whether the software is free.
		This is the first ever conference dedicated to the Apache web server, and is being run by the Apache Group, with organisation and sponsorship by various commercial companies.
	www.apacheweek.com /issues/98-09-04 (806 words)

	ONLamp.com -- An Amble Through Apache Configuration
		These are things like: where files are located on your server, how much of the machine's resources Apache may use, which content visitors are allowed to see, and how many concurrent visitors the server can handle.
		Apache's default settings came about through a collaborative effort between the core development team and Apache end-users -- people like you.
		Apache under Unix is multi-process, meaning that each request is handled by a separate copy, or child process of the httpd program.
	www.onlamp.com /pub/a/apache/2000/03/02/configuring_apache.html (1807 words)

	[No title]
		The Apache HTTP Server is designed to be a powerful and flexible web server that can work on a very wide variety of platforms in a range of different environments.
		Apache has always accommodated a wide variety of environments through its modular design.
		The Apache HTTP Server module mod_ssl provides an interface to the OpenSSL library, which provides Strong Encryption using the Secure Sockets Layer and Transport Layer Security protocols.
	www.lycos.com /info/apache--apache-http.html?page=2 (386 words)

	Running a High-Performance Web Server for BSD
		We use a value guaranteed to be larger than Apache's default for the listen() of 128, currently.
		ALWAYS have a known bootable kernel available when tuning your system this way, and use the system tools beforehand to learn if you need to buy more memory before tuning.
		Apache will then enable filtering when it is restarted.
	httpd.apache.org /docs/1.3/misc/perf-bsd44.html (1220 words)

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