Hosting setup whereby a server is shared among many different customers. When compared to VPS or a dedicated server, this generally means that each customer has less resources available and more restrictions are in effect as to what a customer can do on the server (install software or not, ...).

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20
votes
8answers
2k views

Restrict a Linux user to the files he owns

Imagine a server setup of a shared webhosting company where multiple (~100) customers have shell access to a single server. A lot of web "software" recommends to chmod files 0777. I'm nervous about ...
7
votes
3answers
1k views

What are some ways to prevent user cron jobs from crushing the servers?

It happens fairly frequently that user cron jobs on shared servers all run at the same time and get caught in contention (near as I've been able to tell). So load explodes, Nagios is angry, Apache ...
5
votes
4answers
891 views

Dynamic DNS for Shared Hosting - Does it exist?

It seems that certain home router firmware is designed to work with Dynamic DNS services (e.g. noip & dyndns) to serve a subdomain from a server behind a consumer ISP. On a similar note, are there ...
5
votes
1answer
925 views

Acessing a mercurial repository on a shared host over SSH

I have a shared hosting account with SSH access. I have set up a virtual Python installation and have copies of the system folders in $HOME: ~/bin, ~/lib ... I have installed mercurial through ...
4
votes
5answers
3k views

hosting IP change, how much downtime to expect?

i'm moving my hosted site (same host) to a static IP, I understand there will be some downtime due to DNS caching - does anybody have any tips how to minimize this time and to avoid my users seeing ...
4
votes
5answers
561 views

ASP.NET Future on linux?

I was wondering. What do you guys think about ASP.NET future on linux? I dont know much about IIS and i know some things about linux. I dont want to program anything in php and while searching for ...
4
votes
1answer
82 views

Security in shared hosting vs VPS 'virtual appliances'

I have to change my hosting provider. Right now I have a shared hosting account but I'm considering trying the LAMP stack appliance from turnkeylinux.org. I'm very comfortable with using linux, I've ...
4
votes
2answers
312 views

moving from shared-hosting to VPS-hosting

I'm thinking of moving my social network from shared hosting to VPS hosting. I'm not familiar with VPS and have no experience. Will that be a problem? Thanks
4
votes
2answers
444 views

Why did this website DNS change fail in some parts of the US

Background We switched shared hosts from a local mom and pop to crystaltech. The site was all copied over and ready for the DNS change. The mom and pop site offered no tools to manage DNS ...
4
votes
2answers
226 views

When do I need more than shared hosting?

What are the guidelines? While the answer could be "when your webpage or queries return slowly -- that answer doesn't quite work for me. What are your reasonable expectations for shared hosting? How ...
4
votes
3answers
148 views

PHP parse error appearing on shared hosting environments

Has anyone else seen this crop up a lot recently? I've had several sites go down with this error. Parse error: syntax error, unexpected '<' in /home/public_html/index.PHP on line 39 It's caused ...
3
votes
2answers
284 views

Alternatives to avoid domain from being blacklisted

We outsource our web and email hosting to a web hosting company and occasionally I get complaints from our clients or internal staff that mail from our domain does not reach the intended recipient or ...
3
votes
7answers
997 views

Why do hosts prefer Linux to Windows Server?

So far I see a HUGE majority of hosts provide only Linux shared hosting, providing Windows only to VPS (or even to only dedicated servers). Why is it so? While Windows is a lot more expensive than ...
3
votes
4answers
146 views

Is there any “best practice” for a shared servers?

I'm currently in charge of 2 really big servers (128GB Ram & 32 8-code Xeon CPU each) at my university running Ubuntu 12.04. Students are suppose to use them for big data analysis. We want every ...
3
votes
3answers
6k views

Isolating Apache virtualhosts from the rest of the system

I am setting up a web server that will host a number of different web sites as Apache VirtualHosts, each of these will have the possibility to run scripts (primarily PHP, possiblu others). My ...
3
votes
2answers
1k views

What's the difference between www & public_html folder?

What's the difference between the www & public_html folder on the same server on my shared linux hosting. I've seen data is same on both of these folders. Is one of them just a redirect or is the ...
3
votes
3answers
214 views

Need a helpful/managed VPS to help transition from shared hosting

I am looking for a VPS that can help me transition out of a shared hosting environment. My main OS is Ubuntu, although I am still new to the linux world. I spend most of my day programming PHP ...
3
votes
3answers
214 views

Shared webhost IP blacklisted and is stopping my legitimate emails sending

I am a customer with a webhost and my account is on a shared server. The problem is, it looks like one of the other customers on the same server has gone and got the shared IP blacklisted as ...
3
votes
3answers
425 views

Security of shared hosting

What are some of the security risks involved with using shared hosting services such as godaddy inmotion and fatcow?
3
votes
2answers
114 views

Is hosting my websites and databases with different providers a bad idea?

I'm trying to find a home for three ASP.NET 3.5 websites using three respective SQL Server 2008 databases. I've found one possible solution where I host the websites on a "semi-dedicated" environment ...
3
votes
1answer
425 views

How to disallow use of disable_functions in?

I'm obviously not the first one to have this problem, but I cannot not find an answer to this situation. I want to lock down PHP a bit, more specifically the use of disable_functions. The environment ...
3
votes
2answers
6k views

What does apc.mmap_file_mask really do?

I want to use APC in a shared environment, but the main problem is of course, opcode sharing. To overcome this, I've thought about using different apc.mmap_file_mask for each user (they're chrooted ...
3
votes
2answers
594 views

Once mail hosting through Gmail is setup, is it easy to change web hosts?

I have a personal domain name, pointing to a simple cPanel-type shared hosting account. About six months ago, I decided that I wanted to use Google Gmail for hosting my domain name's email. In my ...
3
votes
2answers
913 views

How can I override global PHP.INI settings on shared hosting?

I have sharring hosting account on Linux Apache PHP with JustHost. In my account exists a global php.ini that only admin of hosting company can access. My problem is that when I run php script the ...
3
votes
1answer
402 views

Compare Shared SQL Server vs VPS SQL Server

I'm looking at two different options to host the databases of my websites. 1) I can use the Shared SQL Server 2008 offerings of my host company (plenty of space) instead of installing database ...
3
votes
2answers
127 views

mod_fcgid: can't apply process slot after software upgrade

I'm on a shared hosting plan with a Wiki and a Bulletin Board installation. After upgrading the Wiki to the latest release my users are not able to upload files with the integrated "media manager" ...
3
votes
1answer
154 views

Multiple domain SSL certs

We have a product (hosted PHP app) which we will be providing SSL certs to for people along with some hosting. We are in full control of the hosting environment setting up the users vhost config, ...
3
votes
2answers
405 views

Host Primary Domain from a subfolder

I am having a problem making a sub directory act as the public_html for my main domain, and getting a solution that works with that domains sub directories too. My hosting allows me to host multiple ...
2
votes
2answers
111 views

Run sensitive command (including passwords) on Linux without exposing data

I have an account on a shared web host which allows me to work on the server via SSH. As I have some problems installing Magento using the web installer I switched to the commandline installation. The ...
2
votes
5answers
2k views

Finding out who hacked my site [duplicate]

Possible Duplicate: My server's been hacked EMERGENCY All Joomla! sites hosted on a single server of mine were hacked and had the following code injected into the index.php files ...
2
votes
5answers
4k views

Why does APC (or similar) cause performance problem for shared hosting?

I'm using shared hosting, and I can't enable APC. There was a thread about that here, and the only reason suggested was for security (php-cgi vs mod_php). I queried the host, and they said it was due ...
2
votes
3answers
2k views

DNS PTR record when domain on shared IP address

I own a typical shared IP hosting plan and domain. I can modify the DNS of the domain from the control panel. The mailserver shares the same IP address, so my typical DNS config is: www.mydomain.com ...
2
votes
3answers
518 views

How to change web host for my small site with minimal downtime

Company S is a small mom and pop host that can't keep our site running for more than a couple weeks at a time. They have suggested we find a better home. So we are moving our site to CrystalTech for ...
2
votes
3answers
2k views

Enabling phar on Dreamhost shared hosting?

So, i'm trying to use Silex on my dreamhost account and I'm getting an error Fatal error: Class 'Phar' not found in blah blah blah... when I try to include the Silex.phar file. When I look at ...
2
votes
2answers
55 views

How to prevent use of `w` and `who` on shared webhosts

We are in the process of setting up a hosting machine that clients will have SSH access to. We don't want them to be able to see a list of user accounts, but the problem we have run into are commands ...
2
votes
2answers
72 views

Will shared hosting work for my case?

I need to host a JSF application backed by a NoSQL database (Cassandra, which operates on a cluster of nodes). I'm going to purchase a set of VPS to maintain the database server cluster. But to host ...
2
votes
1answer
450 views

How does IP blacklisting work on virtualized/shared hosting?

I have read that many blocks of IP addresses associated with Amazon EC2 have been blacklisted by various ISPs. Therefore, even if you never sent spam yourself, emails you send from an Amazon instance ...
2
votes
2answers
85 views

Discovering PHP apps

We've got a standard PHP-based shared hosting for some non-profit organizations. Users can upload over FTP any PHP apps, and we're worrying that some of them aren't properly maintained, f.e. updated. ...
2
votes
2answers
455 views

multiuser PHP virtualhosting environment and security

I'd like to setup a multiuser PHP virtualhosting environment. However, here comes my big concern. Users could use the PHP filesystem functions to access the other users directories, thus read the ...
2
votes
1answer
554 views

Least, secure and enough permissions for public_html and folders and files under public_html using SuPHP for shared hosting environment

I have a server with SuPHP and DirectAdmin. Many (but not ALL) of my users are running Joomla and Wordpress. Will it make a problem if I chmod public_html and sub-folders to 700? Will they NEED more ...
2
votes
2answers
739 views

Distribution/setup for shared web hosting

I'm currently administrating a Gentoo server hosting a few dozen websites for friends and people with common interests. I may be moving to a new server soon, and with that comes the possibility to ...
2
votes
2answers
153 views

Personally identifiable information (PII) on shared web hosting

Hey folks, I am providing web hosting services (shared and dedicated) and have had one of my shared hosting clients mention needing an SSL cert for their site where they are collecting insurance ...
2
votes
1answer
48 views

Is there any way to point an A record of a web page to another website when that other website is on shared hosting?

I am creating a web application that at this point I am using shared hosting to host. Is there any way for me to give my users the option to point the a record of their domain to my website and I ...
2
votes
1answer
451 views

Moving from shared cpanel hosting to non cpanel VPS - What should I know?

I'm currently looking into migrating a few sites from my shared cpanel hosting to a VPS. Got to the point where I want to do more and have been learning about some system admin stuff through my ...
2
votes
1answer
239 views

PostgreSQL or MySQL for shared hosting

I want to offer SQL shared hosting for customers. Ideally I'd like: access isolation (one user shouldn't see information about other user's databases) SQL disk space quota per SQL user ability to ...
2
votes
1answer
355 views

Installing CNProg on shared hosting (1and1)?

I have shared hosting on 1and1. I have shell access but don't have root access. Is it possible. To install CNProg, (Which is a SO Clone in Python) on that kind of hosting? If not, can I use Ubuntu ...
2
votes
1answer
467 views

Apache 2.2 Mod-dav-svn ignores SuexecUserGroup directive

While setting up mod_dav_svn on Apache 2.2.x on shared hosting, I've ran into some trouble. The main problem is that most of the vhosts use their own user/group, websiteX:clientX, and the svn ...
2
votes
0answers
237 views

Change domain (vhost?) on Gandi simple hosting

I have a Gandi Simple Hosting account and a domain (domain 1) which I also registered through Gandi. Gandi hosting is unfamiliar to me as it uses instances that don't have IP addresses. Currently I ...
2
votes
2answers
6k views

How do I configure multiple PHP.INI files on shared host running Apache?

I would like to use a different PHP.INI file for each site hosted on a shared server. I have modified the Apache vhosts file for each of the sites, adding the line… PHPINIDir /srv/www/my-domain.com/ ...
1
vote
2answers
1k views

How to call perl from crontab?

I can run this command fine from the SSH console of my rackservers shared hosting: cd /home/myaccount/public_html/whatever; perl -w -I/home/myaccount/public_html/whatever rss2txt.pl ...