Choosing 32bit Versus 64bit OS
Jun 13, 2008
I'm in the process of preparing to install CentOS 5 on my server, and was wondering whether most people recommend going with the 64bit version or sticking with 32bit. My server's CPU is 64-bit capable (Xeon 3060 at SoftLayer), and I have previously run CentOS 4.4 64bit on it, though I did have some struggles from time to time getting things to work (following setup guides that tend to assume 32bit more often than not).
I'll be running just a standard setup of PHP 5, MySQL 5, and Apache 2, powering several moderate-traffic sites that run on the Drupal CMS (e.g. about 7000-10000 visitors per day total, though hopefully more in the future of course). I don't plan on running a control panel other than Webmin, though I might get DirectAdmin or similar in the future to make hosting some friends/clients a bit simpler.
Will going with 64bit offer any worthwhile advantage with this setup?
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Mar 3, 2008
I have been trying to research this but I cant seem to find an answer.
The big question I am trying to figure out is the comparison in clock speed for different processor bits.
For example, a 32 bit Pentium 4 at 3.2ghz versus a 64 bit AMD Athlon 2.0 Ghz?
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Feb 29, 2008
while setting up a server which will host VPS's. Currently I have CentOS 5.1 x64 as the host OS, and I'm playing around with Xen for VPS's. Would you recommend a 32bit VPS, or a 64bit VPS?
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Jul 8, 2009
how i can migrate vmware 32bit to 64bit without delete any vps... ?
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Dec 5, 2008
Witch OS 32bit or 64bit
I have a server with follow specifications:
Intel Celeron D/215/220
1.20+ GHz
1 Go DDR
Witch version of Centos is the best for this server. Centos 32bit or 64bit...
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Sep 3, 2008
2 server configuration will look something like below. I heard that the 32bit kernel is better for the web server since I'll have cpanel on it. Anyone able to confirm this or should I just put 64bit on both of them?
Web Server
5420 2.5GHz (Dual QuadCore)
2x250GB SATA2 (RAID1)
2GB RAM
DB Server
5310 1.6GHz (Clovertown, DUAL processor)
2x73GB SAS (RAID1)
4GB RAM
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Sep 9, 2007
I was surprised when hypervm brought in a 64bit guest os. Maybe it's me..but...is this a good idea? Maybe it works fine.. it just does not *seem* like it would.
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Jul 8, 2008
As cPanel is an integral part of server hosting and has the ability of compiling Apache 1.3.x with PHP4 (cgi) and PHP5 (dso) on your server OS.
Does anyone know or have baselines/benchmarks for which performs better generally for hosting: 32bit or 64bit RedHat 5 when cPanel 11 has compiled for the Apache and php mentioned above on either of these OS editions? (assume latest versions of apache/php4/5)
I was wondering if 32bit performed better or 64bit on a quad core Xeon. Don't forget PHP is compiled for prefork and not multi-threading for Apache 1.3.41 (which are considered legacy 32bit forked apps compiled against 64bit OS).
Or rephrased, could i be hampering performance by running it on a 64bit OS on a Xeon (X3210) or improving performance? I'd assume 64bit would offer better all round processing power, or is this a misconception.
I recently decided to get a server on RedHat Enterprise 5 X86_64 (64bit), when i wondered if 32bit version would have provided better performance and been the better options for compatibility.
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Jul 31, 2009
if anyone has insight or comments about Fusion-io's ioDRIVE versus their ioXtreme drive. If you do, I would appreciate reading your thoughts on this.
The ioDRIVE is their enterprise product while the ioXtreme drive is being marketed to the consumer market. Both seem to be extremely impressive products.
My main question is whether or not an ioXtreme is suitable for web server use. The ioDRIVE is made for server use and is much more expensive, so is not only a bit less attractive because of the cost but also a bit out of my reach, financially, at this point.
So, what do you think about the ioXtreme being used in a web server? Any reason that this might be a bad idea?
Would Intel's X25-E be a better solution than the ioXtreme? The ioXtreme is PCIe based & the X25-E is a SATA drive.
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Apr 22, 2007
I have a 'complex' situation, if you will. The site I run has free access to a variety of server hardware. Sitting under my desk, I currently have:
1. Dual Xeon 5345 (quad core, 2.33GHz) with 8GB memory, mid-tower
2. Quad Opteron 8xx (dual core, 2.2GHz) with 16GB memory, 3U
3. Dual Xeon 5160 (dual core, 3GHz) with 4GB memory, mid-tower
We also have the appropriate licenses for Windows and MSSQL (which is what we use).
I am currently on a shared host that we'd like to move away from. We would like to have the ability to run both a production and a development environment. We'd also like to be able to offer web-hosting to a couple of other small sites...
So what I'm wondering is whether it really makes sense to colo. Honestly, it seems like we'll get a lot more bang for our buck versus dedicated. Most dedicated servers that are under 200 could only be described as sad and pathetic. However, they may be enough for what we need....
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Dec 23, 2008
I have a dedicated box with following specs
Core2Quad 2.4ghz
2x500gb hdd
8gb ram
I installed 32bit centos5 in it ( because I use lxadmin ;lxadmin wont support 64bit)
Installed kernel-PAE successfully and rebooted the server. but the server still boots into the old kernel. I need the kernel-PAE to be booted, then only I can utilize full RAM. help me . below there is ssh logs
[root@t241 ~]# cat /proc/meminfo
MemTotal: 3357036 kB
MemFree: 3204984 kB
Buffers: 8148 kB
Cached: 109516 kB
SwapCached: 0 kB
Active: 33504 kB
Inactive: 103664 kB
HighTotal: 2477180 kB
HighFree: 2343972 kB
LowTotal: 879856 kB
LowFree: 861012 kB
SwapTotal: 6409892 kB
SwapFree: 6409892 kB
Dirty: 16 kB
Writeback: 0 kB
AnonPages: 19524 kB
Mapped: 7608 kB
Slab: 7732 kB
SReclaimable: 3964 kB
SUnreclaim: 3768 kB
PageTables: 400 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
CommitLimit: 8088408 kB
Committed_AS: 45232 kB
VmallocTotal: 114680 kB
VmallocUsed: 3992 kB
VmallocChunk: 110560 kB
[root@t241 ~]# uname -rm
2.6.25.10 i686
[root@t241 ~]# cat /etc/grub.conf
default 1
timeout 7
color cyan/blue white/blue
title=CentOS (2.6.18-92.1.22.el5PAE)
root (hd0,1)
kernel /boot/vmlinuz-2.6.18-92.1.22.el5PAE root=/dev/sda2 pci=nommconf
initrd /boot/initrd-2.6.18-92.1.22.el5PAE.img
title=linux
root (hd0,1)
kernel /boot/vmlinuz root=/dev/sda2 pci=nommconf
[root@t241 ~]# rpm -qa | grep kernel
kernel-2.6.18-8.el5
kernel-PAE-2.6.18-92.1.22.el5
kernel-headers-2.6.18-8.el5
[root@t241 ~]#
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Jul 9, 2008
Yesterday i got new Centos 5.2 server running.
For some reason, load shows 0.4-1.2.
There is no software installed on it yet, there is nothing actually running expect what came with fresh installation of that OS.
top - 16:42:22 up 2:34, 1 user, load average: 0.53, 0.75, 0.78
Tasks: 158 total, 1 running, 157 sleeping, 0 stopped, 0 zombie
Cpu0 : 0.3%us, 0.0%sy, 0.0%ni, 99.7%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu1 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu2 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu3 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu4 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu5 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu6 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu7 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 4149456k total, 767820k used, 3381636k free, 66628k buffers
Swap: 2096472k total, 0k used, 2096472k free, 600680k cached
What should i check?
Kernel Version:
2.6.18-92.1.6.el5PAE
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Apr 27, 2009
Which CentOS distribution i386 or x86_64 do I need for intel core 2 duo 32bit desktop.
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Jun 10, 2009
32 bit or 64bit for cent Os 5.3?
I am planning to purchase 2 vps for my friends, 1 vps which I am currently in touch is providing wide range, they gave option for 32bit or 64 bit, is there going to be change in the performance of the vps based on this selection
and which is better for the future causes, this vps might have an community forum, few blogs and some file upload site,
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May 14, 2007
I know absolutely nothing about these operating systems and am going to be solely relying on lxadmin or cpanel to manage my website.
However I would like some suggestions as to which OS I should choose (i.e. which is the fastest, most stable, etc.)
Here are the possible choices:
Mandriva
CentOS 4
OpenSuse 10, Slackware 10.2
Debian 3.1, Debian 4.0
Fedora Core 3, 4, 5
what is meant by VPS hardening?
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Jul 30, 2007
There's idea to move to 64bit, Current Software Specs are:-
CentOS 4.4
PHP 4.3
MySQL 5.0
Apache 2.0
No CPanel
Named
NFS
Web site mainly running on Apache, PHP, MySQL and NFS.
What do you think about stability of these softwares on 64bit processor.
Also which better AMD Opteron or Intel woodcrest ?
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Jan 4, 2009
Im planning to put up a gameserver with a website for a mmorpg and i dont know how powerfull processor should i choose, what control panel, what operating system, 32x or 64x bit, what bandwith...? I was thinking about choosing iWeb Quad core Xeon, 100mb uplink, Windoes server 64x with cpanel.
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Oct 19, 2008
I've an original post with thread number 727551 which has date got old (forgive me for coming back late). So I decided to post a new thread here. But really thanks for all your helps, and I found I'm lucky to find a good place to ask my questions, as I see lots of valuabe responses when I come back.
I have some further questions about having "multiple domains" with a single hosting plan. Forgive me for not having much concept about this:
1. Does it mean that the "multiple domains" will all be sharing a single IP address (or should I say if I go to Shared Hosting plans, websites from all other people who share the same hosting machine with me will have the same IP)?
2. Would there be negative effect for my search engine rankings of each of these domains, if I have my domains sharing the same hosting (and if they really share the same IP)?
3. In case people know one of my domain name, would there be any way to check for my other domains in the same hosting, so that means they will know all my other websites?
I ask this because I'm thinking to launch different websites on a same niche.
And after looking into different hosting companies and their reviews, I found there are really different (and quite confusing) opinions around. Actually I expect I do not need much at the very beginning. I found there are lots of cheap offers, price as low as $1 per month, but I just afraid there will be problem later on. I'm thinking may be just go to those big and more famous one, say host gator, to avoid any unnecessary headaches later on.
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Jun 17, 2008
I am about to start a website in which I will feature lots embedded video clips from sites like youtube, toudou, etc.
I am new this, so I'm wondering how I can choose a proper web host for my site, so that people can always reliably view the videos and at decent speed. I'm not looking to spend a fortune as this is my first website.
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Jul 16, 2008
Choosing the right host is a very important decision. I've compiled a short list of do's and don't when it comes to web hosting.
1) UNLIMITED features. Rarely trust companies that offer unlimited space/bandwidth etc. as this is blatant overselling. When was the last time you saw an unlimited hard drive?! Companies that offer unlimited hosting features may not be around long and their other services tend to suffer - e.g. support.
2) Free hosting. Be wary of free hosts, particularly ones that seem to be giving far too good a deal to you - they probably are. The Webmaster-talk forums are regularly spammed with free hosting, and one that keeps cropping up is called ********.com. I urge you to ignore this as a highly reputable hosts do not spam forums!
3) Your ACTUAL needs. You might be excited by hosts that offer 5GB of storage space and 1000GB (1TB) of bandwidth for very low prices, but you should at the very least be wary of such companies. Besides the con issue, ask yourself - do you even need such large resources? For most small companies and individuals starting up, a maximum of 500MB web storage space and roughly 5GB bandwidth will be adequate. Once your site is up and running, you will be able to see whether you do need more or not and if necessary, you can upgrade. Some hosts (hostmonster.com being an example) seem to offer incredible packages for very low amounts of money. However, companies like this are often unreliable and may end up throwing you off their server if you start using these extreme amounts of resources. See tip no. 5 for solution.
4) Do your research. It's very important to do adequate resource on whichever host you choose: don't just take their word for everything. Check what the technology experts are saying on the issue (e.g. look through reputable technology magazines for reviews). BE CAREFUL WHEN SEARCHING REVIEW SITES - THEY USUALLY EARN COMMISSION FOR EACH SIGNUP SO WILL PUSH THE HIGHEST BIDDING HOST!! While it sounds infantile, type queries like "..... .com sucks" and also search through their own support forums (assuming they have them) to see how quickly issues are resolved. Try contacting their support or sales departments with questions to get a good perspective of their response times. Remember, if their sales department take a while before they have your custom, imagine how long they may take when they do have your custom!
5) When your needs outweight most plans. If you've outgrown your current plan and you are using very large resource amounts, it may be time to think about renting out a VPS (Virtual Private Server) or a Dedicated Server. I emphasize that this will not be necessary unless you are receiving a lot of visitors (traffic) and unless you are storing a very large amount of data (e.g. hundreds of photos, movies or software downloads). VPS' are now relatively cheap and combine reliability with speed and of course more space and bandwidth. A typical entry VPS may offer you 10GB storage and 100GB bandwidth. If you have extreme needs and you are already running a very busy site, you may even contemplate renting out a Dedicated server from a hosting company. Dedicated servers are computers entirely dedicated to your own web site and are very reliable (if you choose the right host) but are overkill for the vast majority of people.
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Dec 19, 2008
For those of you who has 8GB RAM on their servers, are you running 64bit OS on the server? How good are those 64bit OS? Are they stable?
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Jul 30, 2008
I wonder if there is a big advantage if I would go 64bit instead of 32bit. Now I mean standard webserver + mysql. And how about compatibility isses?
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Aug 14, 2007
Does anyone know of a VPS provider that can provide a CentOS 5 64bit OS?
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May 1, 2007
I'm moving from shared to VPS. This forum is helpful, but I seem to notice everyone recommends the hosts that advertise here. That makes me wonder about conflict of interest.
Anyway, I'm looking for a company that has great customer service and will walk me through the first baby steps of having my own VPS for the first time. That and uptime. Everyone else seems to have the same features. So how to choose?
I called 3 hosts today: JaguarPC, LiquidWeb and Spry. Jaguar sounded okay. The sales kid at Liquid didn't seem to be able to answer any of my questions that weren't on his cheat sheet. And Spry had me on hold forever (with good music, though) and dropped my call a minute in.
Also, will they help me lock my VPS down like a fort so it's ueber secure? Will I have to install PHP, MySQL, phpMyAdmin, and all the other programs I didn't know I needed myself? I have no experience, so it would be good to know. I'm a graphic desiger turned web designer turned noob PHP developer -- I'm scared that I'm not geeky enough.
Anyway, does anyone have the same feeling that all hosts seem the same when you're shopping around? I know I'm going to have to give in, close my eyes and jump at some point (very soon). But this is no fun.
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May 28, 2008
I am getting into the dedicated server market and have a question...
I would like to get access to an entire Class C so 111.111.111.xxx - is that standard or should I assume someone offering a dedicated server with 1 IP only is giving say 111.111.111.1 ?
What would be the cost of being able to allocate different sites on the same class C?
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Oct 21, 2009
Are these unheard of?
Are there any out there? Im looking at recompiling some custom server software into 64-bit ... (I am waiting on one library to be updated) .. to make use of the extra RAM allocations, and slight speed increase.
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Feb 23, 2009
I am starting a small ecommerce website, initially selling 10 to 20 items but obviously hope to grow in the future. Since I donât know much about web hosting, web design, etc., I need referrals to a webhosting company that provides easy to use professional looking templates which would allow me to design my website fast and start operation right away. Obviously, I need to get shopping cart/merchant account and all that goes with a e-commerce website (and I have no idea what all that might be but I am sure there are so many things that I will discover in the process). Anyway, I have visited many hosting companies out there and they are all so confusing to me. I wish they would allow me to see sample websites they host that used their templates but I havenât been able to find any.
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Jun 1, 2009
I tried installing CentOS 64bit using windows image and vnc that comes with HyperVM and it says (your cpu does not support long mode. use a 32 bit distribution), and if I try to install Windows Server 2008 I get blue screen with a stop and error.
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May 4, 2009
I have changed the SSH port in sshd config, and restarted the server and sshd, but it still runs on port 22, and my firewall says its running but its not blocking anything either. I restarted iptables, and all that still nothing...
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Jan 16, 2008
anyone have a cpanel server running centos 64bit or fedora ? i would appreciate a phpinfo. then you can remove it afterwards i need to debug something in 2 of my servers.
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Jun 29, 2008
I just saw two quite nice deal in the VPS offer forum with CheapVPS and Crissic.
They both around $15/month after discount with 512RAM and 20gb(Crissic's is 70gb) harddisk and 300gb+(CheapVPS is 600gb) bandwidth.
The harddisk space is more important to me at the moment but after a search in the forum I can't find any possitive feedback on Crissic, and both nice/bad feedback on CheapVPS. Seems more people are using CheapVPS.
I am wondering if anyone can help me to choose between them in terms of the reliability and stability of their server/service?
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