VPS is the acronym for `Virtual Private Server`. Hosting companies provide customers the ability to rent computing resources, which are used to create and run virtual machines that are controlled by the customer, but run on the hosting company's hardware. Such a VM is known as a VPS.

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44
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8answers
3k views

Why would I need a firewall if my server is well configured?

I admin a handful of cloud-based (VPS) servers for the company I work for. The servers are minimal ubuntu installs that run bits of LAMP stacks / inbound data collection (rsync). The data is large ...
40
votes
8answers
14k views

Slicehost vs Linode [closed]

Slicehost.com vs Linode.com Which one do you recommend? Are there any major differences between these two? What are your personal experience?
28
votes
2answers
41k views

Difference between Xen PV, Xen KVM and HVM?

I know that Xen is usually better than OpenVZ as the provider cannot oversell in Xen. However, what is the difference between Xen PV, Xen KVM and HVM (I was going through this provider's specs? Which ...
26
votes
7answers
3k views

Automating server deployment

I find i am constantly settings up pretty much nearly identical servers and VPSs for a number of my clients and it can be very time consuming. Often the only thing that changes between each deployment ...
17
votes
6answers
13k views

Optimize apache/php/mysql running on VPS for heavy load

Question about optimizing an apache/mysql server on a VPS with 512m of RAM. Under normal load everything runs fast, no connection lag. However when we get our heavy traffic days (50k+ visits) the ...
16
votes
7answers
19k views

How much VPS ram would I need to run Wordpress, Apache, SVN & MySQL?

Does anyone have a ballpark figure of how much VPS ram (without burstable) I would need to have apache with wordpress and subversion as well as the MySQL instance? Apache would host a couple of sites ...
12
votes
5answers
2k views

What are the benefits of having an unique IP address?

I just signed up with DreamHost VPS, and their sign-up process offered an unique IP address for an additional ~$4/mo. I know what IP addresses are. Why would this uniqueness matter? Visitors are ...
11
votes
5answers
2k views

Renting a dedicated, but getting a VPS. How to detect? [duplicate]

When renting a dedicated server, how can one be certain than he/she is not getting a VPS or some other virtual machine variant instead of a true dedicated hardware box? Which checks can be run ...
10
votes
1answer
512 views

Benefits to having a sole email VPS server

I have around 5 websites hosted in a VPS server, and for some reason I bought another VPS server recently just to host the emails for those 5 websites. I would like to know the pros and cons of having ...
10
votes
2answers
818 views

Dedicated server or Cloud Hosting?

This is a Canonical Question about Cloud Hosting When deploying my application to the Internet: Should I chose a dedicated server, cloud hosting or a VPS? What factors should I consider when ...
10
votes
3answers
2k views

Optimizing Apache and MySQL on Linux Xen VPS

I have a Xen virtual private server (VPS) running Ubuntu 8.10, with 128M RAM. I've found several "how to optimize Apache and MySQL for low-memory VPS" pages via Google, but they provide contradictory ...
9
votes
2answers
555 views

My server Admin wants me to set public write permissions on a directory

I'm relatively new to web development, so please be patient. I'm primarily an iPhone developer, but have recently done a site for someone else using shared hosting. I could write to files in PHP on ...
8
votes
8answers
2k views

Which virtualization platforms should I choose, Xen or OpenVZ? [closed]

I am upgrading my shared hosting to VPS hosting, mainly to just add server administration skills to my development skills, so I'm facing a lot of new choices just signing up. I need to choose a ...
8
votes
8answers
2k views

Uses for a small Virtual Private Server?

I rented a small VPS (~130MB of RAM) to run an IRC bot. The bot is no longer needed so I have a VPS until the billing period ends. I also have shared web hosting but can anyone think of what a VPS ...
8
votes
3answers
3k views

Linode Distro (How to Choose?) 64bit? [closed]

I have made the leap to Linode (360MB) and wanted to get some feedback on which distribution to choose. I'm going to be running LAMP (with P being PHP). I am mainly curious about security, ...
8
votes
1answer
932 views

Why doesn't Linode ever have to shut down for updates?

I've been using Linode for over a year now, and, unlike some lesser-known VPS hosts I've used, I've never been required to shut down my VPS by Linode. The only restarts have been ones I've initiated. ...
8
votes
1answer
952 views

Are vCPU the same as 1 Socket, or a single Core?

Currently I have a Hyper-v VPS with 2 (vCPU) processor. I would like to install SQL Server Express 2012 that has a limitation of 1 Socket or 4 Cores, whichever the lesser. My Question: Are vCPU's ...
8
votes
4answers
1k views

VPS Administration for the Absolute Beginner

I have a new site that I want to build, something that I as a programmer wish existed. While there is no way this site would ever reach StackOverflow levels of success, I do hope that it will have a ...
8
votes
0answers
2k views

How do I install CoreOS on Linode? [closed]

I'm trying to install CoreOS on my linode server, I followed the guide for installing custom linux distributions here: ...
7
votes
11answers
1k views

Is there tool that will monitor or log speed of web server responses [closed]

I have GNU/linux Box (linode VPS running Debian) with PHP, Apache, MySQL and Varnish (and app/site that use those) is there a tool that will save or monitor load times of web server responses?
7
votes
7answers
3k views

How to backup a linode 360 VPS?

I have a php/vbulletin/apache server running a 360 instance of linode. I am wondering what is the best way to remote backup the server in another location? I'm guessing I have two options, FTP and ...
7
votes
4answers
34k views

How to save and exit crontab -e?

How to save and exit crontab -e? i tried every method listed here and none works, i have a centos 5, vi comes by default with yum and i installed nano Solved just changed the default editor export ...
7
votes
4answers
9k views

Removing Apache from Debian 5

I had Debian 5 installed on my VPS but I found that it came with apache2 already up and running. I tried apt-get remove apache2 but it said that apache2 wasn't running. I checked top and yep, there ...
7
votes
4answers
892 views

Distinction between Cloud Servers and VPS

What is the distinction between a Cloud based host and a VPS? I talked to a Rackspace Cloud sales person for around 45 minutes and never came to a real conclusion on this. So, to elaborate on my ...
7
votes
5answers
2k views

Suggestions for reliable cheap VPS ($10)? [closed]

Does anyone have suggestions on reliable and cheap VPSes (up to around $10 each)? I found this link on a related question and was wondering if anyone had reviews for these services or others: ...
7
votes
1answer
267 views

OpenVPN Client timing out

I recently installed OpenVPN on my Ubuntu VPS. Whenenver I try to connect to it, I can establish a connection just fine. However, everything I try to connect to times out. If I try to ping ...
6
votes
6answers
2k views

Attempted hack on VPS, how to protect in future, what were they trying to do? [duplicate]

UPDATE: They're still here. Help me stop or trap them! Hi SF'ers, I've just had someone hack one of my clients sites. They managed to get to change a file so that the checkout page on the site ...
6
votes
3answers
10k views

How do I set up a basic mail server for the first time?

I have a site running on a VPS, now I want to be able to receive mails at info@mydomain.com. How do I need to set up the server? And how should I set up the mail client on my PC to receive those ...
6
votes
5answers
5k views

Any way to reduce bind9 memory footprint?

I am running my own Authoritative DNS on bind9 for like 5 of my domains with little traffic. I am running them on 2 separate VPS servers (so every Mb of memory costs me some $x2). Is there any way to ...
6
votes
7answers
3k views

How much memory is enough for a Windows 2008 VPS?

From the system requirements for Windows Server 2008 (on wikipedia.org): Minimum: 512 MB RAM (may limit performance and some features) Recommended: 2 GB RAM or higher I'm going to have my website ...
6
votes
4answers
535 views

What should I know before considering a VPS or dedicated server?

I have a plan for the future for an application and web service. The client will have an application that will send requests to a server-side Java backend that will process requests, and the server ...
6
votes
5answers
2k views

Any alternative firewall solutions for debian that aren't based on netfilter / iptables?

I have a virtual server running Debian. It's host OS is using Linux Vserver and due to its lack of support for network namespaces, using iptables to secure the box is not an option. I did many ...
6
votes
2answers
4k views

What exactly is AVAHI?

CentOS 5.2 My VPS host rebooted (checking with host support now) and I noticed the following in /var/log/messages Aug 28 11:57:52 echo avahi-daemon[21633]: **Found user 'avahi' (UID 70) and group ...
6
votes
2answers
2k views

what are the advantages/disadvantages of cloud server versus a VPS?

I was looking around for inexpensive linux/PHP hosting for a project that is still in development. I got some recommendations for slicehost. But then a freind mentioned rackspace cloud servers, and ...
5
votes
9answers
1k views

384 MB enough for a starter VPS?

I'm considering to rent a VPS with 384 MB memory. It would run on CentOS and would have cPanel with Apache 2 / MySQL and Phusion Passenger with nginx / sqlite. What do you think, will it have enough ...
5
votes
2answers
630 views

Load Average above 20 for single core vps on debian

OS: Debian 6.0 RAM:3072 M, CPU:single core. top: top - 08:56:43 up 21 days, 12:37, 1 user, load average: 28.38, 22.48, 15.95 Tasks: 8 total, 1 running, 7 sleeping, 0 stopped, 0 zombie ...
5
votes
2answers
335 views

Why do I need to set a hostname?

I know there's quite a few questions about host names. But even after reading them, I didn't really understand the concept of host names entirely. So here's my question: I've been following this ...
5
votes
3answers
290 views

Correct way to handle security threats to web server on budget [closed]

During our annual security review I was reminded of an incident earlier this year where we received a threat to our organizations web server. It was over a organization policy and threatened to DDoS ...
5
votes
3answers
4k views

Clear / Flush cached memory [duplicate]

I have a small VPS with 6GB RAM hosting a couple of websites. Recently I have noticed that my cached memory size is quite high - see below: Cpu(s): 0.1%us, 0.1%sy, 0.0%ni, 99.1%id, 0.0%wa, ...
5
votes
2answers
8k views

Why is the chroot_local_user of vsftpd insecure?

I'm setting up on my VPS a vsftpd, and i don't want users be allowed to leave they're ftp home directory. I'm using local_user ftp, not anonymous, so I added: chroot_local_user=YES I've read in ...
5
votes
4answers
775 views

what is better: three small VPS or a bigger one VPS

I'm interested in deploying a django application with its database. So I would like to know what do you think what can be better in terms of performance: Three linodes 540 (720) or one linode 1440 ...
5
votes
4answers
283 views

Do virtual private servers yield better uptime than shared hosting?

I'm running some websites on a shared hosting provider for $10/month. I've experienced a few downtimes in recent months. The tech support tell me there's nothing wrong with my site. The server ...
5
votes
2answers
1k views

How Hacker Can Access VPS CentOS 6 content? [closed]

Just want to understand. Please, correct mistakes and write advices Hacker can access to VPS: 1. Through (using) console terminal, for example, using PuTTY. To access, hacker need to know port ...
5
votes
3answers
147 views

geographic location of VPS

I purchased a VPS, but I have my suspicions the server is not in the location I requested (Amsterdam). Is there a reliable way to determine the physical location of a VPS (using it's IP address, ...
5
votes
4answers
552 views

VPS or dedicated server for a web server?

I currently have a small dedicated server at ThePlanet and I want to do an hardware upgrade. On this server I am hosting a php web application. I have done some comparaison between ThePlanet, Amazon ...
5
votes
3answers
413 views

How to deploy same stack+configuration to multiple server?

Currently I have 2 VPSes, setup and configured almost exactly like this, with some other minor Nginx configurations. I did it all manually I want to get few other VPSes and deploy the exact same ...
5
votes
7answers
4k views

Secondary IP (eth0:0) acts like main server IP

I have a CentOS server, configured with 4 consecutive IPs: eth0 5.x.x.251 eth0:0 5.x.x.252 eth0:1 5.x.x.253 eth0:2 5.x.x.254 The problem is that all traffic goes out to the internet with eth0:0 ...
5
votes
2answers
501 views

persistent storage on Amazon EC2 and other questions

i come from the land of VPSes, and all this cloud hype confuse me. i have been reading through the amazon EC2 guide for the past 2 days, but i still have few sketchy points i'm not understanding. if ...
5
votes
1answer
6k views

Server load high, CPU idle. NFS the cause?

I am running into a scenario where I'm seeing a high server load (sometimes upwards of 20 or 30) and a very low CPU usage (98% idle). I'm wondering if these wait states are coming as part of an NFS ...
5
votes
2answers
198 views

Security implications of enabling IPv6 on my VPS?

My VPS host can allocate me a small block of IPv6 addresses for nothing, and I've kind of wanted to for the sake of trying on my small website/dev VPS. My main concern is what I have to do to ...