What Elements Effect What On The Server
Jul 27, 2009
I've been browsing Google and have learned a lot about how to read stats and what to look out for. However I'm not understanding what effects what.
We've increased
max_user_connections from the default 25 to 50 and
max_connections from 500 to 1,000
What area would this effect, RAM? CPU? If I'm having issues with CPU during my heavy load times, What should I look to optimize on our web site? We also disabled gzip on css/js files to prevent the server from over-working.
I've also run into the Today's stats for the server. Can someone tell me more about the part:
Quote:
Top Process%CPU 29.0/usr/local/bin/perl -w /usr/share/munin/munin-update
Top Process%CPU 28.0/usr/local/bin/perl -w /usr/share/munin/munin-update
Top Process%CPU 27.0/usr/local/bin/perl -w /usr/share/munin/munin-update
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Jul 10, 2007
I have a wierd problem on my server. I'm updating an order with my php shopping cart script and notice some of the orders hang on updating. After research I discovered the orders that wont update are orders that have domain names in the textarea field. More specifically. www.yourdomain.com will just hang if I try to update them.
After further research I discovered the if I put an backslash it'll update no problem. IE: www.yourdomain.com
This only happens with domain names inside a textarea. I'm not sure if it's a php config setting, apache setting, my firewall, mod_evasive, mod_security. I've looked at all of them and can't seem to find what is blocking the script from updating just because of www.domainname.com in a textarea.
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May 12, 2014
It appears some elements of the ICPH webpage have keep-alive and some not.
I want to ask how to achieve all are loaded with keep-alive?
htaccess contains:
<ifModule mod_headers.c>
Header set Connection keep-alive
</ifModule>
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Aug 26, 2007
How well would a website do if it was featured on d-igg with these specs? (assuming it was the only site on the server)
Xeon 2.8, Quad core 4mb cache
4gig RAM
2x73gb SCSI
2,500gb b/w
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Oct 25, 2008
I'm hosting proxy sites on my vps and untill yesterday my proxy worked fine with no problems at all.
But while going trough my server graphs I found it odd that I had 0 bandwidth since the middle of yesterday.. I first supposed that this was due school's out [url]but this wasn't the reason I found out!
I tried testing one of my proxies to see if it was still working, but with any URL I try to visit I get:
The requested resource could not be loaded. libcurl returned the error: Couldn't resolve host 'www.google.com'
I suppose the DNS server crashed?
I already restarted the VPS 3 times including the DNS Server.
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Sep 12, 2007
I learned the hard way last year when my website (on GoDaddy shared hosting) made the front page of Digg. GoDaddy suspended my account in a hurry (and didn't bother to inform me, but that's another story). I'm planning to get a VPS account with SLHost to prepare for future traffic growth.
How should I configure the server to best handle a huge spike in traffic? From what I can gather, there are a number of factors:
- Max HTTP connections (MaxClients in Apache)
- Max number of open file handles allowed (a kernel thing)
- Virtuozzo allowed TCP connections
This post at webhostingtalk.com/showthread.php?p=4552677#post4552677
by Josh at SLHost outlines the defaults for their VPS servers:
Quote:
Are you referring to HTTP connections or other? By default, the MaxClients setting is at 256 clients and would need a recompile if you want more. The number of open files allowed is set to 1024 by default and can be raised. There are also Virtuozzo allowed TCP connections, which is set at 1200 and we've noticed that anything more than that should either be on an Enterprise VPS package or low end dedicated server at least.
Should I do any tweaking to the defaults if I want to survive another Digg onslaught?
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Apr 2, 2008
I had made a website which name is uscarland.com it is very attractive site therefore I had got Google Page Rank 3 But Now our site have losted Page Rank. Last weak I changed our DNS .
Can DNS effected on PR?
I wanna ask from you why I have losted our Page Rank.
when I searched my site at the google then google show it But I try to open then my site is not opened ? why
When I opened it directly then it will opened? How can Possible?
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Nov 1, 2009
Which VPS package would I need from Host Gator to survive a front page Digg?
[url]
Would a level 3 work?
Running wordpress with the wp-super cache plugin.
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Apr 27, 2009
if there is a way to detect traffic spikes using weblogic server logs and depending on traffic load redirect to a static page, or load the dynamic page.
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Oct 22, 2008
I'm reading about the fail-over system on precision effect's site, but am not 100% clear on a few points. Their live chat isn't active right now and I'd kind of like to hear from someone that actually uses the service anyway.
If there's not anyone who knows for sure, I'll just ask their live chat later on when their awake
Is their fail-over system actually a load balancing cluster comparable to cartika's hsphere plans?
I'm trying to decide between checking out cartika, precision effect, or opening another account with medialayer just for a couple more domains. Between the 3, price isn't really a concern, since the package I'd order from each, with addons and such comes out to within a dollar or two of the others.
Medialayer has been great, and I'll keep my site with them, but I have a couple other sites to put up, and am kind of drawn to the clustered solutions for max uptime per dollar.
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Dec 10, 2007
I was searching for the web hosts that could survive the ****.com effect then I researched myself to compile this list of Web hosting providers that survive it. Web hosts that survive the **** effect
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Sep 26, 2007
I want to ask about suexec.
Currently I disable suexec in my dedicated server.
Which is better, to enable it or not?
What will happen to existing sites folder permissions if suexec is turned on?
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Nov 8, 2009
I currently pay $9.99 USD per month for a dedicated server to host my little news site.
The specs are 667mhz / 256Mb ram / Centos / about 20-40mbit BW on a shared 100mbit port.
Anyway, I have a possibility to have one of my articles dugg soon, as It may become popular and I am wondering.. is there anyway i can tweak this box to survive DIGG?
I'm using wordpress at the moment, with lighttpd and mysql and I could possibly just make it a static http page I guess for the digging.
I think that even with lots of tweaking and serving a static HTML page, it may still die.
SO, anyway..
My maximum budget is approximately $25 USD per month, but I'd like to spend less, ideally.
Do you think I should A) get a 2800+ sempron / 2.8ghz p4 with 1GB of ram and unmetered 10mbit / 100mbit with 1.5TB
Or shared hosting? Or a VPS? or what?
OR just stick with what I have now?
Basically it will just be news articles / blog type stuff + some images.
The reason I say 10mbit unmetered is at least I know what my bill is going to be etcetc.
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Sep 12, 2008
It has been a little while since I have frequented here, but I thought it was time that I step in here and offer up a review of Precision Effect over at www.precisioneffect.com after moving to them this past February. I have now been with Precision Effect for approximately 7 months.
I had been with a previous host, A Small Orange since June 2006, and it seemed that at least once a week I was seeing 20 to 30 minutes of downtime. After awhile, I got used to it, thinking that that is just what happens with your web host. Well after things continued to worsen over time, it got worse during the winter (end of 2007/early 2008), and I was having a number of up-time problems, including a day and half of downtime at one point (that I had posted about previously here: [url].I was finally fed up in February after I had to email their support services for a few days straight to continue to fix things.
Needless to say it was time to move as my site was growing in popularity and as I run an official message board for a #1 New York Times Best Selling Author (that I fund on my own), I felt it was only right to move to a more professional host that had better up-time and customer support.
Precision Effect is where it is at!
They completely took care of me during this stressful move from one host to another and did the complete transfer for me.
I have had a few questions here and there (very minor in nature), and they have always provided me with a professional and caring response (no matter how minute or how stupid I may have sounded to them). To me, this is a company who takes care of its customers.
The members of my site, never knew this, but one day after I was completing an update on my site, I made the mistake of deleting a directory on my server, that I believed to have been a backup file on my server, and wiped out my entire site! In ten minutes my site was backup and running from one of their backups...I don't know how they did it, but I didn't lose one post on my board!
If you are looking for a company that offers amazing up-time, professional, caring and courteous staff who will take care of you, then this is the web host for you! If this company continues to operate the way that they have for me for the past 7 months, then they have a customer for life.
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Dec 29, 2008
This week I am about to pay for my 3rd year at Precision Effect. (Since December 2006) I've had several hosts in the years before, but after signing up for Precision Effect (heard about them on WHT), I have had absolutely no reason to change.
When I first signed up, I was worried that I would have to manually upload all the files to precision effect by first downloading them to my computer and then re-uploading them to Precision. After chatting with their tech support, however, I was able to give them a link to a rar file on my previous server which they downloaded directly to the new server and decompressed for me. They even ran a database restore with a backup file from the old database server. I could have done this myself (as I'm sure most of you could) but I really liked to see that the tech support took the time to get me settled in, especially since (at the time) I was only paying about $20/year. Past hosts would have just brushed me off.
In the past two years, I only had to contact tech support twice. Both times, I received an almost immediate response to the email (I usually email late at night) and it really felt as if they were dropping everything to fix my problem.
I'm still on one of their older (not their "LiteSpeed") servers, so I can't attest to the speed of the new ones, but my server has always been very fast. My websites are a bit graphics/database intensive and I've never had load time issues. I've also never had unscheduled downtime (a couple of times they would have some small amount of downtime for upgrades) that my "downtime detector" found, though its accuracy is only about once every 15 minutes.
So, this is a long-winded review, but Precision Effect is highly recommended!
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Sep 30, 2007
My site will be powered by drupal and I want to know if a vps under $30 can handle instant and huge traffic that comes from digg
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Dec 10, 2007
I've been reading more and more posts about how a quality network card is important. We build all of our servers from new, quality parts but honestly we always rely on the built in NIC on the motherboard (which are brand name motherboards, but nonetheless)
How can a lesser quality NIC effect a server other than total failure of network activity? What signs should we look for and what are quality brands? My first guess is dropped packets or low throughput. I've also heard of people saying that load can go up from a bad NIC - is there any truth to that?
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Jul 20, 2009
i have a cpanel server with centos,
and i put a script on it,
and i get the error
-----------------------------------------------------
Warning: Unknown: Your script possibly relies on a session side-effect which existed until PHP 4.2.3. Please be advised that the session extension does not consider global variables as a source of data, unless register_globals is enabled. You can disable this functionality and this warning by setting session.bug_compat_42 or session.bug_compat_warn to off, respectively. in Unknown on line 0
-----------------------------------------------------
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May 12, 2008
I've been scouring various hosting review sites trying to get a feel of what might be the best fit for me. After reading a few reviews on the WHT forums, I'm down to a choice between Fused Network and Precision Effect. It seems like both are equally preferred by the users here, but I haven't been able to grasp what might be the best fit for a personal site. I don't anticipate needing to upload any massive media files, but I'd like to have the option. The site would mainly be used to showcase my web work, and probably aggregate information from different social networking API's (e.g. Twitter, Tumblr, Flickr).
Some of my questions I have are:
What are the advantages of cPanel over Plesk?
Is 20GB bandwidth a reasonable amount if I'm expecting to be dugg once in awhile?
Is performance/page-loading time noticeably better due to PE's accelerated PHP environment?
Maybe this is overkill for a personal site, but I'd like to find a reliable host that I can stay with for over a year while I construct my online present from the ground up.
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Jul 10, 2008
Please share your experience about having your site dugg.
What hosting solution will be the best shot for the traffic-intensive site? Are there any shared hosts that allow to survive the digg effect? Might a shared plan with unmetered bandwidth nad disk space be the way out? I'm talking about the Deluxe Plus type of plan from webhostgiant.com deals.
[url]
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Dec 17, 2007
Just wondering... When I set my A-name records in my Domain-provider control panel, it takes almost 24hours to take effect sometimes, yet other times it can be almost instant...
I was just wondering, from a technical point of view, why this is. Does anyone know?
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Nov 28, 2007
I have 2 ecommerce sites now hosted at 2 different shared locations, both sites offer same exact products and pricing. I am in the process of elancing out the recode/rebuild for both sites to share one mysql database, cart and to be housed together in one VPS.
I plan to put them both on 1 windows VPS (they are asp) each with its own separate IP but have heard this can cause problems with search engines especially google. I have great natural organic right now (1st position for 5 of my demo keywords) and dont want to put that at risk but getting really tired of 2 separate backends, carts, hosting etc..
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May 15, 2014
Plesk Firewall has no effect on IPv6?
I am writing today regarding the Plesk Firewall. It seemed to be pretty handy for quickly blocking troublesome users from *replace-with-whatever-IP-block-is-giving-you-trouble*. Yet I am unable to block IPv6 addresses, and the fire wall seems to let some blocked IPv4s right in. I did not see any distinction as to v4 or v6 in the Firewall dialog for adding custom rules, so...
The question is...
(1) Is the Plesk Firewall *supposed* to apply rules to IPv6 by default?
If yes...
(2) Is there a setting or a switch that has to be configured for this to work?
If yes...
(3) Where are said configuration options located?
Okay, when I run /sbin/ip6tables -L (CentOS) I get output that resembles the iptables (no 6) output, only... what, converted to IP6? Not sure. Example output:
DROP tcp ::ffff:31.0.0.0/104 ::/0 tcp dpts:1:10000
In that particular instance I added a drop for the 31.0.0.0/8 block (using the Plesk Firewall interface), in order to create the script that's loaded into iptables (and ip6tables as well, apparently) when one elects to "Apply Configuration". It worked great, executed perfectly, and the iptables output list output looked to be (and remember, I have grossly insufficient background knowledge in this area) accurate.
Yet at the time of this writing I can see via live traffic monitor that an address in the 31.0.0.0/8 block (IPv4) is pounding away at a website. This is curious, as the live traffic monitor indicates an IPv4 address. So... can an IPv4 address be detected and recorded from a host that is only able to connect via IPv6? While an interesting question, I was more concerned with just blocking the IPv6 address and get more academic with it later.
But this raises another question; why would Plesk populate ip6tables and not provide an interface to actually submit IPv6 addresses.
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Jul 31, 2014
Problem:
- I make changes to the PHP settings but they don't seem to take effect. I even had tried making the changes in the php.ini file, but some of the changes here don't take effect either. I have found similiar posts, but resolutions that work. I have restarted the IIS service after the changes, but this did not change the results I see in phpinfo();.
Examples of Changes Not Taking Effect:
- I changed "error_log" in PHP Settings. phpinfo showed no value for error_log. I changed error_log in php.ini and the change took effect for both local and global.
- memory_limit is set to 128M in php.ini. It shows as 32M for local and 128M for global with phpinfo(). No matter what I change this to (some value, "-1", default) in 'PHP Settings', the value does not change for local.
- The same problem with 'memory_limit' also occurs for post_max_size.
- PHP 5.2 and 5.4 are installed. If I change the version under the 'General' tab, it stays as 5.2.17 in phpinfo().
- I have changed the error_log setting in php.ini and 'PHP Settings', but still nothing is logged in the error_log file with safe_mode on or off (set to local directory). There is a note out there saying that with PHP 5.2, safe_mode on will not write to file.
- I have performed IIS Restarts, but this did not make any settings take effect.
- I also have tried changing PHP settings under the 'general' and "PHP Settings' tab, both under the website area and the advanced options->Website Scripting and Security. So the 'website' settings would be specific for the website and under 'Website Scripting and Security' would be for the webspace. Changing in either location does not make a difference.
Other Note
- I discovered this, because a client was getting a 501 when performing a post, which also sent an email. If he attached a file larger than 7MB to his form, the code would fail with a 501 error. After investigating, the "To" field was blank if a person attached a file larger than 7MB. Defnitely seems to be a memory issue. But since no log file, nor will my settings take effect, I have not been able to resolve this.
PLESK Version
- 11.0.9 Update #62 on Windows 2008 and IIS is the web server.
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Jun 4, 2008
my email address is being spoof/forge. i have added spf record into the DNS for couple days now but i'm still getting rejected/bounced email. is this correct or is spammer is still able to forge my email and sending out spam?
edit: where can i check if my domain/server is on spam block list? since dnsstuff's tool cost money.
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Mar 26, 2014
I added the following to my cpanel .htaccess file on my hosting account:
<FilesMatch ".pdf$">header set x-robots-tag: noindex
</FilesMatch>
This was to stop Google from crawling and indexing my PDFs, will this work accross all my addon domains and subdomains (which are wordpress) on my hosting account or do I need to take extra measure?
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Jul 13, 2008
I've installed CRE Loaded 6.2 on one of my client accounts and am receiving the following error when trying to edit the language files:
Warning: tempnam(): open_basedir restriction in effect. File() is not within the allowed path(s): (/hsphere/local/home/hrtire:/tmp:/var/tmp:/usr/local/lib/php) in /hsphere/local/home/hrtire/hrtire.net/store/admin/edit_textdata.php on line 151
I've asked for support from my host and they told me that it can be fixed using .htaccess. They said to use:
php_value open_basedir /hsphere/local/home/hrtire/hrtire.net/store/admin/
That doesn't fix the problem and I'm not getting any more responses from them. I've tried variations (e.g. .../store/, .../store/tmp/) and nothing works.
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May 8, 2007
I've got a VPS which is serving as the main server for a number of sites. Web Server, SSH Server, and Mail Server.
What I've got running:
Apache2, PHP5, MySQL5, Dovecot, Postfix
One of the sites is a growing forum with a MASSIVE photo album. This is the site where I notice the most slowness.
Changing the server software is not an option - Only optimization.
Quote:
Originally Posted by httpd.conf
ServerTokens OS
ServerRoot "/etc/httpd"
PidFile run/httpd.pid
Timeout 300
KeepAlive Off
MaxKeepAliveRequests 100
KeepAliveTimeout 5
<IfModule prefork.c>
StartServers 8
MinSpareServers 8
MaxSpareServers 13
ServerLimit 256
MaxClients 256
MaxRequestsPerChild 50
</IfModule>
<IfModule worker.c>
StartServers 2
MaxClients 150
MinSpareThreads 25
MaxSpareThreads 75
ThreadsPerChild 25
MaxRequestsPerChild 0
</IfModule>
Listen 80
LoadModule auth_basic_module modules/mod_auth_basic.so
LoadModule auth_digest_module modules/mod_auth_digest.so
LoadModule authn_file_module modules/mod_authn_file.so
LoadModule authn_alias_module modules/mod_authn_alias.so
LoadModule authn_anon_module modules/mod_authn_anon.so
LoadModule authn_dbm_module modules/mod_authn_dbm.so
LoadModule authn_default_module modules/mod_authn_default.so
LoadModule authz_host_module modules/mod_authz_host.so
LoadModule authz_user_module modules/mod_authz_user.so
LoadModule authz_owner_module modules/mod_authz_owner.so
LoadModule authz_groupfile_module modules/mod_authz_groupfile.so
LoadModule authz_dbm_module modules/mod_authz_dbm.so
LoadModule authz_default_module modules/mod_authz_default.so
LoadModule ldap_module modules/mod_ldap.so
LoadModule authnz_ldap_module modules/mod_authnz_ldap.so
LoadModule include_module modules/mod_include.so
LoadModule log_config_module modules/mod_log_config.so
LoadModule logio_module modules/mod_logio.so
LoadModule env_module modules/mod_env.so
LoadModule ext_filter_module modules/mod_ext_filter.so
LoadModule mime_magic_module modules/mod_mime_magic.so
LoadModule expires_module modules/mod_expires.so
LoadModule deflate_module modules/mod_deflate.so
LoadModule headers_module modules/mod_headers.so
LoadModule usertrack_module modules/mod_usertrack.so
LoadModule setenvif_module modules/mod_setenvif.so
LoadModule mime_module modules/mod_mime.so
LoadModule dav_module modules/mod_dav.so
LoadModule status_module modules/mod_status.so
LoadModule autoindex_module modules/mod_autoindex.so
LoadModule info_module modules/mod_info.so
LoadModule dav_fs_module modules/mod_dav_fs.so
LoadModule vhost_alias_module modules/mod_vhost_alias.so
LoadModule negotiation_module modules/mod_negotiation.so
LoadModule dir_module modules/mod_dir.so
LoadModule actions_module modules/mod_actions.so
LoadModule speling_module modules/mod_speling.so
LoadModule userdir_module modules/mod_userdir.so
LoadModule alias_module modules/mod_alias.so
LoadModule rewrite_module modules/mod_rewrite.so
LoadModule proxy_module modules/mod_proxy.so
LoadModule proxy_balancer_module modules/mod_proxy_balancer.so
LoadModule proxy_ftp_module modules/mod_proxy_ftp.so
LoadModule proxy_http_module modules/mod_proxy_http.so
LoadModule proxy_connect_module modules/mod_proxy_connect.so
LoadModule cache_module modules/mod_cache.so
LoadModule suexec_module modules/mod_suexec.so
LoadModule disk_cache_module modules/mod_disk_cache.so
LoadModule file_cache_module modules/mod_file_cache.so
LoadModule mem_cache_module modules/mod_mem_cache.so
LoadModule cgi_module modules/mod_cgi.so
Include conf.d/*.conf
User apache
Group apache
Quote:
Originally Posted by my.cnf
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
# Default to using old password format for compatibility with mysql 3.x
# clients (those using the mysqlclient10 compatibility package).
old_passwords=1
[mysql.server]
user=mysql
basedir=/var/lib
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
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