Increasing Server Capacity / CPanel

Apr 13, 2008

I'm trying to start a website on a shoestring budget, but my programmer and host want to squeeze more out of us. We currently have a Custom VPS, w/cPanel and WHM. Everytime I try to upload a file(s) more than 10 mb, it will not go thru. My programmer told me to ask the server to increase capacity, they tell me it will cost me. My programmer says the same thing. Now if my programmer can do it, I assume it will be done through cPanel. Is there anyway I can do it myself, so for example, a file of lets say 25 mb will get uploaded? I have access to my cPanel.


Ddos :: Server Filelimits: Increasing File System Limits Succeeded

Jul 7, 2008

floodkoruma is a script which securing our servers from syn floods. But I couldnt understand our connection lost from server on that screen. Last screen is it.

last log messages

Jul 7 19:41:27 server filelimits: Increasing file system limits succeeded
Jul 7 19:42:25 server kernel: printk: 234 messages suppressed.
Jul 7 19:42:30 server kernel: printk: 1026977 messages suppressed.
Jul 7 19:49:42 server syslogd 1.4.1: restart.
Jul 7 19:49:42 server syslog: syslogd startup succeeded

as you can see I rebooted from apc server. But before it

Jul 7 19:42:30 server kernel: printk: 1026977 messages suppressed.

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Windows Server Capacity

Jun 11, 2008

I am trying to develop plans for my small 'datacenter'. My Question is how many shared hosting users (sites) can be on one server. While this question is broad, please assume a general distribution of users (sites) and the following server configuration (and lets ignore the datacenter network/uplink for the meoment):

Xeon Quad Core 5410 processor
Windows 2003 or 2008 Server O/S

How about if a mySQL database is added (to the same server?)

I recently started looking at some of the panel systems and it seems that a typical configuration is 'all-in-one', that is a Web Server, Database and email server - do these perform well?

Is there any rule of thumb for Windows servers such as zz MB Ram per user; # of users per processor; # of user per processor core?

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Server Specs / Capacity

Jan 9, 2007

I would like some advice and to see if this is a good approach to setup a server / web business.

The idea is to start off providing very basic web hosting functionality for smaller sites.

I was thinking about purchasing two similar or identical servers (RAID1 disks) + server fully mirrored.

In case 1 falls out the 2nd one takes over. DNS services is at startup located on other servers in the DC.

If this works out then I'd be looking at increasing servers with clusters or LVS.

I'm having a very hard time finding resources and information of the load and server capacity.

I was thinking about a system like this:

CPU: Intel Core 2 Duo E6300 , RAID 1 SATA disks (preferrably Raptor), 2 GB of RAM.

This would then be running LAMP. I would limit the traffic to 5-10GB transfer / month per account.
(most account would not nearly get up to this figure).

Is there a ballpark figure at about how many web sites this server could handle ?
Are we talking about 50 ? 20 ? 100 ?

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FTP Server - High Speed / Capacity

Nov 19, 2008

I've been asked to look for a offsite ftp server solution as an alternative to having one inhouse attached to a 20-100mbps leased line. It will be used for storing ISO images of DVD's from client sites, must have a fast connection, reliable and full security.

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Site Capacity Of Dedicated Server

Apr 3, 2008

What would be the site hosting capacity of a dedicated server in terms of numbers of small sites.

1000 visitors a day for example.

Perhaps 5 page views a vistor and each site having a VBulletin as a sub-domain.

Would it be best to run them all off one dedicated server or each site just off a small hosting plan?

For organizational purposes it seems the dedicated server would be the way to go?

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Huge Capacity Windows 2003 Server

Jan 6, 2008

I have a request to built a standard 32 bit Windows 2003 server as big as possible using standard parts. I am thinking if i use 750GB x 4 Raid 5, that will give me 2.1TB of usable space. Is there any limitations or bottlenecks I should be wary about?

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Dedicated Server With Very Large Storage Capacity

Mar 8, 2008

I have found SL can offer you 12*1 TB drive based systems, after RAID-5 and Win 2003 install you get just over 10 TB of storage. The monthly price works out to $1000/Month.

I know some time ago LeaseWeb offered these type of storages....any one else know of any others ?

Amazon S3 works out to about $1500 for 10 TB

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Increasing Max_user_connections

Jun 3, 2007

any problem increasing max_user_connections ? (for example 600)

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My Consumed Space Is Keep Increasing - Do You Know Why

May 24, 2008

I have bought a hosting from new hosting company.

I have total 5GB space wherein I can host unlimited domains.

When I uploaded my files ( for 4 sites ) I saw that I have used total 16 MB. But today when I logged in there I noticed that the cPanel shows that I have used total 22.75 MB

But I didn't upload anything that may take upto 6MB space

I just uploaded few images that may take maximum 100KB.

My hosting provider said this

"The extra disk space could be email messages stored on the server, mysql database files, etc... All these things are accounted for within your disk space."

But I replied that I don't use any database and I don't have any single email in my account so how that space can by consumed? Waiting for their further reply.

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Increasing APC Cache Memory Size

Dec 11, 2008

Right now APC shm_size is set to30 and since I am only using about 20% of the RAM in VPS, I thought it would be best to increase it a bit. Now how do I go about doing that?

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VPS Disk Quota Status Keeps Increasing Every 2 Days

Aug 18, 2008

I have had over 4 different VPS providers and in all of them, I was always using less than 5 gigs and most of it is from the OS and the VPS files, my website is less than 400 megs of size including the backups. For some reasons, my Disk Quota is at 8.3 gigs and it was at 8.2 gigs yesterday. My website's files are not that big and the Database is like 30 megs and the backups are compressed so they are like 4 megs. The problem is that I really don't know what files are making my Disk Quota to go up since I haven't uploaded anything or download files to my VPS.

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Increasing The Expiration Time For SSL Certificate For Exim

Jul 12, 2007

I issued a self-signed certificate for Exim by running the following commands:

openssl req -new -x509 -keyout /etc/exim.key.tmp -out /etc/exim.cert
openssl rsa -in /etc/exim.key.tmp -out /etc/exim.key
rm -f /etc/exim.key.tmp
service exim restart
The problem is the certificate expires after one month. I have already edited my /usr/share/ssl/openssl.cnf with the following lines in order to increase this expiration time to one year and it worked for the SSL certificate issued for Apache, but it has no effect on the Exim certificate.

default_days = 365 # how long to certify for
default_crl_days= 365 # how long before next CRL

Should I edit another file or set it on another place? Does anyone know?

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VPS Capacity

Dec 22, 2008

This is my first post here, though I've been an occasional reader for a long time.

I currently have a VPS at Godaddy, plus shared hosting at Godaddy, 1and1, and Namecheap.

I'm very unhappy with Godaddy, and not terribly thrilled with 1and1. Also, I want to consolidate my sites.

I have appx. 25 sites, with plans for another 20-25. Most are either WP blogs, or static informational sites (using Xsitepro). Most are low-volume (appx. 100 visitors/day). A few, maybe 5, are low-medium volume (a few hundred visitors/day).

The sites are pretty basic, mostly Adsense, affiliate sales, and the like. No streaming anything except the occasional video clip.

I'm considering Futurehost's current offer for 50% off lifetime on their Titanium package w/ cPanel. This provides 1Gb RAM. Any reason to think this would not be adequate for my current and future plans (currently appx. 25 sites, going up to 50 within 12 months)?

I'm pretty sure bandwidth will be way more than adequate, I'm just wondering if a 1Gb VPS will be enough for all my sites.

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Backup Capacity

Apr 1, 2009

A question about backups:

So, we have a dedicated server with 2 x 146GB SAS HDD Hot Plug (max 4-6) and running WHM/cPanel

the two disks are in RAID.

Noticed, cpanel wasn't making backups, so apparently we need to install additional disks for it to start to do so. cpanel makes 3 backups - daily, weekly, monthly; home directory is set to around 100GB. So does that mean we would need to put in two additional SAS disks per server just to manage backups or does anyone have other experience how this is best dealt with?

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Egress Capacity

Dec 11, 2008

What does customer mean when he says he needs -"switch that has 10g of egress capacity to the internet"

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Capacity Planning For Web Services

Jun 10, 2009

Can anyone recommend any books for learning/understanding capacity planning for web services?

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Where To Go When Shared Hosting Capacity Runs Out

Jan 20, 2008

I have a website currently hosted on a Godaddy shared hosting plan.

Visitors to the site have reported getting "Service Unavailable" messages at times. When I talked to Godaddy about this, they say I am exceeding the limits they put on simultaneous page requests (or something to that effect). For my plan this limit is set at 100.

I upgraded to their highest shared hosting plan, and this limit now goes up to 150 simultaneous requests. This will probably solve the problem for a while, but I think the site will grow enough to have a problem at 150, and I need to figure out what to do when this happens.

The site currently gets about 4800 visitors a day, and uses around 5 gb of bandwidth per day.
The site is: BuildItSolar dot com


- Am I likely to find a shared hosting plan that is better on this limit than Godaddy?

- Is the site getting large enough that some form of virtual dedicated server or dedicated server is going to be necessary?

- Godaddy offers virtual dedicated servers, and dedicated servers. I wonder what I would need to go to solve the problem, and provide some capacity margin for growth?

Is the lowest level of virtual dedicated server really going to provide any better performance than the shared hosting plan I have now? Godaddy was not very helpful on answering these questions.

- Any recommendations for virtual dedicated server or dedicated server outfits that are good?

Sorry about so many questions on my first post. Wish I knew more about this whole hosting thing.

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Moved To Dedicated Still Facing Capacity

Aug 14, 2007

I just moved my site to dedicated server due to shared hosting capacity problem. Again I am facing Too many connection problem, when i contacted go daddt they replied as follow


Thank you for contacting Server Support. There are a couple of things you might want to check. First is how you have your httpd service configured. Make sure you have sufficient MaxClients defined in /etc/httpd/conf/httpd.conf. Additionally you will want to refer to your /etc/my.cnf file to make sure you have it configured to allow as many max_connections and max_user_connections as are needed.

I am using Redhat Fedora with Plesk as control Panel. Any help how i can change this Max_user_connections?

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Looking For Large Capacity IMAP Email Hosting

Jul 22, 2008

I would like to find a host with good quality & uptime that has large disk capacity for hosting IMAP email, about 10 to 20 gigs in size per domain.

I know of places like Bluehost and powweb but I'm not crazy about the 'overselling' issues related to them....

Any Ideas?

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Tool To Test Web Site Capacity Levels

Nov 16, 2007

I'm trying to find a tool that will thrash a site to the break point and report where that is. This is for testing sites before they go online so that they don't go online and then drop offline because they can't handle the load.

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AWSTATS Stats Decreasing While Webalizer Stats Are Increasing

May 23, 2008

I look after a number of sites and monitor their stats. We use both webalizer and AWSTATS so we can have a comparison. Up until recently the stats for both of them where relatively the same, webalizer usually showing higher numbers as it doesn't filter bots but the progression of increase and decrease in stats was proportional. However, over the last few months a curious trend is appearing, the stats in AWSTATS are decreasing every month whereas the stats in Webalizer are increasing, the gap between them now is huge.

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Increasing The Apache ServerLimit In Apache 2.2.8 Version.

May 28, 2008

The Linux Server got down when the MaxClients 256 is reached.
Error Log:

"server reached MaxClients setting, consider raising the MaxClients setting"

So that I have tried to increased the MaxClients Value to 500, after changed the value in httpd.conf and restart I get following error message.

" [notice] SIGHUP received. Attempting to restart
WARNING: MaxClients of 500 exceeds ServerLimit value of 256 servers,
lowering MaxClients to 256. To increase, please see the ServerLimit

So that I tried changed the Server limit in /usr/local/apache/include/httpd.h header file. but it seems like there is no entry.

Apache Version : 2.2.8

So I have added the ServerLimit 500 entry in httpd.conf file and restart the httpd service. But still shows the same warning mesg. Please help me regarding this.

We have the Dedicated server for Flash Game Server with following configuration.

Intel(R) Xeon(R) X3210 @ 2.13GHz
Cpanel Installed.
Apache 2.2.8
PHP 5.2.4
MySQL 4.1.2 (MySQL Server is working in differend server)

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What Is "switch That Has 10g Of Egress Capacity To The Internet"?

Dec 11, 2008

What does customer mean when he says he needs -

"switch that has 10g of egress capacity to the internet"

Any input provided is appreciated.

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How To Use External CPanel Mysql In Another CPanel Server

Mar 14, 2007

I have 2 servers both have cpanel. I want to use 2nd server's mysql in my site which is on 1st server. I think thats not that hard. I don't wanna do clustering as this is temproary.

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Cpanel Domain Name Server (DNS) Setting For Email On 2 Seperate Server

Nov 7, 2009

This is the scenario, are setup on server1, however server2 also has the same profile of as we use ns3 and ns4 using This works fine with the nameserver setup on server2.

However I encounter problems as the emails from server2 won't reach server1 as there are duplicate profile on server2.

My question is how do I setup the DNS in cpanel/whm from server2 so the emails from server2 will reach server1?

Server1 (


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Move SSL Certificate From CPanel Server To Plesk Server

Oct 23, 2009

I need to move an SSL certificate from a cPanel server to a Plesk server.

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ODBC Connection From A CPanel Server To A Windows Server

Dec 21, 2008

if it's possible to use ODBC to connect to a Windows box from a Linux cPanel server. We have attempted connections from PHP (both as CGI as well as Apache module) and we get:
Fatal error: Call to undefined function odbc_pconnect() in...


Fatal error: Call to undefined function odbc_connect() in...

Is ODBC possible on cPanel servers?

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I Have A WHM/cPanel Server Shared Server

Apr 21, 2009

I just had user KILL the server using 80% CPU and 30% ram.

Processor #1 Vendor: GenuineIntel
Processor #1 Name: Intel(R) Core(TM)2 Quad CPU Q8200 @ 2.33GHz
Processor #1 speed: 2331.000 MHz
Processor #1 cache size: 2048 KB

Memory: 4039468k/4718592k available (2494k kernel code, 144784k reserved, 1262k data, 200k init)

with 1TB HDD

How can I restrict him or anybody else from doing this? MySQL was in the next top useage... his site runs a HUGE DB...

Have the following edits


max_connections = 800
key_buffer = 96M
myisam_sort_buffer_size = 64M
join_buffer_size = 2M
read_buffer_size = 2M
sort_buffer_size = 3M
table_cache = 1800
thread_cache_size = 128
wait_timeout = 900
connect_timeout = 10
tmp_table_size = 128M
read_rnd_buffer_size = 524288
bulk_insert_buffer_size = 8M
max_allowed_packet = 16M
max_connect_errors = 10
query_cache_limit = 2M
query_cache_size = 192M
query_cache_type = 1
query_prealloc_size = 16384
query_alloc_block_size = 16384




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CVS At CPanel Server

Apr 10, 2008

A client of mine is asking me to install CVS at the server so he can manage hes application.

Yet, I have no clue if I should look on a particular software to accomplish this. The server is a standard cPanel box with CentOS installed.

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New Server With WHM/cPanel

Mar 29, 2008

I'm holding a dedicated server on my own and have about 6 sites to transfer to that server, some sites get heavy traffic (8k uniques per day)

what is more effective (since im the only one using the server anyway) creating one cpanel account and hosting all the domains under additional domains on that account with unlimited resources or creating a new cpanel account for each domain?

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New CPanel Server - /etc/my.cnf

Jul 11, 2008

I just setup a new cPanel server and the default /etc/my.cnf is only showing

set-variable = max_connections=500

My older server has so much more settings. Has anyone guide me how do I go about this? because my phpBB script is not working showing me 2006 MySQL Server has gone away.


Is there a standard recommended guide for /etc/my.cnf entry for a shared server?

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Cpanel Server

Jan 21, 2007

I have a cpanel server.

I have done some mis- experiments.

My datacenter support has asked me to do the following:

"restore the original configuration by copying the /etc/security/limits.conf.orig file into /etc/security/limits.conf and rebooting your Server. "

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CPanel Domain Name Server (DNS)

Aug 12, 2008

After spending 1 hour wondering why all domains suddenly stopped working and the hosting server was showing no signs of fail.

A simple dns service restart on my secondary dns server fixed this.

Is there any way to auto restart the dns service upon failure on the cpanel dns only build?

Also why would the secondary dns server failing, cause the domain to stop working. The primary dns/hosting server was fine.

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WHM/CPANEL Domain Name Server (DNS)

Dec 14, 2008

I have just purchased a VPS with WHM and CPANEL.

My old VPS used LXADMIN and HYPERVM.

I'm trying to change over the DNS from the old to the new, so all i did was change the i.p's.
Now i go into WHM and type my DNS servers into the setup/config page. Having already assigned each dns name an i.p im just waiting for the Assign an A address to this namserver button to show my new i.p address.. At the minute it says my old one.

Is this the correct way, i know it can take a while to proporgate, is this the same with it showing the new IP?

anyone wants to check:

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Restore Cpanel Server

Apr 10, 2009

i have a centos with cpanel server,

it may be the board problem,it could not work now.

i install another centos server with cpanel,

how can i restore fron the hd of original server to the new one well?

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ClamAV On A CPanel Server

Oct 27, 2009

I've got ClamAV installed on my cPanel (Dedicated) server with a single site and would am having trouble setting up ClamAV to scan emails.

I installed it via WHM and have set it up in WHM to scan all items.

Ie: WHM -> Plugins -> Configure ClamAV Scanner -> Scan ALL items

After doing a few manual scans however (using 'clamscan -ri') I'm finding infections in the account mail folder.

1. Is there a good guide to setting up ClamAV on a cPanel serve do do automatic mail scanning? I was under the impression that ClamAV scans emails also however after doing some reading people seem to recommend MailScanner.

2. My logwatch is giving me the following error.

The ClamAV update process (freshclam daemon) was not running! If you no longer wish to run freshclam, deleting the freshclam.log file will suppress this error message. 

The freshclam daemon wasn't running so I've started it (freshclam --daemon). I've also checked the freshclam.conf file and the logrile is set as follows:

UpdateLogFile /var/log/freshclam.log

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Dedicated Server And Cpanel

May 30, 2009

I've had some people trying to sell me dedicated recently with cpanel for 30, unbelievable that too with core duo 2.ghz, 100mbps unmetered, 250 gb, ofcourse i said no but strangely they were offering cpanel with it. Now that is unbeilievable, when i asked what cpanel, they said they installed Cpanel VPS on it.

It was quite astonished there and they said it was common practice.

Of course i know it is scam but they actually showed me a screenshot..

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Getting More Out Of LogWatch On A CPanel/WHM Server

May 5, 2009

I was searching for something else the other day and came across this (search for LogWatch on the page).

It changes the default paths for some of the log files so that they work on a cPanel/WHM server.

This will give you more reports in your daily LogWatch email - specifically, it adds exim, apache, courier and PureFTP logs.

Most tutorials only show you how to change the detail level or the email address in logwatch.conf.

So, I thought I'd share this piece of information.

I found that a few changes were necessary for my system.

So, I'll give all the steps I followed below:

1) After you have installed LogWatch, change the following in /usr/share/logwatch/default.conf/logwatch.conf :

Detail = High
MailTo = <your email address>
You can use Detail = Med if you want to reduce the details you get.

2) Add the following to /etc/logwatch/conf/override.conf (you may have to create the file):

logfiles/exim: LogFile = exim_mainlog
logfiles/http: LogFile = /usr/local/apache/logs/access_log
services/pop3: *OnlyService = cpanelpop
services/pop3: *RemoveHeaders = 1
services/pureftpd: LogFile = messages
services/pureftpd: $show_logins = 1
services/pureftpd: $show_logouts = 1
services/pureftpd: $show_new_connections = 1

So, if you are not bored reading LogWatch's daily logs and would like to increase your workload, you now know how to

How have you configured your LogWatch installation ? Or do you use something other than LogWatch?

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Securing A Cpanel Server

Nov 2, 2009

I am concerned as I get several emails containing this like this:

Large Number of Failed Login Attempts from IP

I'm trying to stop it, as obviously, I don't want anyone gaining access to my server.

Any tips for making sure the server is really secure?

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