Tag Info

Hot answers tagged

51

First, you should trust your hosting provider. If you think they sold you a VPS, maybe you should reconsider this provider. Just to make sure you have a dedicated you can try this: Does the command esxtop work ? This tool is used to check performances on Virtual Machines Check the network interfaces. Run the command ifconfig. If you see something like ...


32

VPS and Cloud are the same damn thing. A dedicated server is a physical box sitting in a rack somewhere that is not shared with anyone else, that you can do whatever you want with.


28

A dedicated server is a full server to which you have exclusive, guaranteed access. A VPS provides you with similar levels of administrative control as a dedicated server, but is powered by one of a number of technologies, either full virtualization (Xen, VMWare) or single-image segmentation (OpenVZ) to give you the illusion of exclusive access to what is ...


23

There's no 100% reliable way for you to detect that you're in a VM, just like there's no way to detect whether you're actually in the Matrix, or if you're actually a computer simulation. However, if the provider is an idiot, you can tell that you're in a VM from the following handy list: Xen: /proc/sys/xen exists OpenVZ/Virtuozzo: /proc/vz exists VMWare: ...


21

First of all, physical machines tend to have more memory than VPSs. Question 512MB or less. Secondly you can check several things to find a VPS. You'll commonly find virtual machines have surprisingly basic looking hardware in them. Like KVM has a "Cirrus Logic GD 5446" graphics card. VMWare used to have an RTL8129 network card in. This is so most OS ...


17

To augment @Book Of Zeus' answer, if you are running under KVM you will see things like: root# grep 'model name' /proc/cpuinfo model name : QEMU Virtual CPU version 0.15.0 root@nscache1a:~# dmidecode -t system | grep Manufac Manufacturer: Bochs root# grep QEMU /proc/scsi/scsi Vendor: ATA Model: QEMU HARDDISK Rev: 0.15 Vendor: QEMU ...


16

Actually, they are bundling the cost of a maintenance contract with the hardware vendor into your monthly fee. The real advantage is that you don't need to buy or build a datacenter. There's three ways to get servers: owning, renting space, or renting servers. Owning Dedicate a room you can put raised floor into Get two power domains coming into it Get ...


15

The whole dce/dte thing is still correct, in theory. However, today's devices generally insulate you for those details. I bet your ds3 cable connects directly to your router, right? It used to be that the only way to connect to a router was a serial cable. Slightly more modern routers got ethernet. It was a long time before anything else was available. If ...


13

From what I've seen, there are three things to be aware of for i-series processors vs Xeon series processors: Xeon processors can typically be used in multi-cpu motherboards; i-Series processors cannot (just like the sales guy told you). This is by far the largest difference between between the processors themselves. Certainly a good i7 processor has the ...


12

As you note, there are a number of costs associated with EC2, beyond the cost of running the instance, however, the 'instance-storage' mentioned in your question is not one of these. Each EC2 instance (except the t1.micros) comes with ephemeral storage, that is included at no extra cost (neither for I/O nor storage). However, this storage does not persist - ...


11

I am sorry, but my honest answer is this: If you don't even know how to check if your database is indexed you are so far out of your league that your only option is to hire a professional, given the scope of your project. Not a group of cheapo code slaves, but someone with a lot of experience with sites like yours. We can give you a plethora of tips, but ...


10

You can use something like dd if=/dev/hda of=/tmp/path/server.img then use QEmu's qemu-img convert -f raw -O vmdk server.img server.vmdk (replace vmdk with vpc and the file extension with vhd for Xen or Hyper-V) Otherwise most virtualization environments have tools to do what you want, this is just one way.


10

really the answer here is to use the one you are most comfortable with in terms of package management -- cause that's the bottom line when it comes to distros. Some popular ones are debian (ubuntu) and gentoo. I'd highly recommend any debian flavor as it's what you'll find instructions for everywhere. Gentoo is good if you want (and are able to) specify ...


9

VT is just a processor technology, it doesn't necessarily mean that your server is virtualized. That being said, you should just call and ask them rather than asking us to guess whether what a specific provider does.


9

enable bootlogd, which is part of sysvinit-utils by setting BOOTLOGD_ENABLE=Yes in /etc/default/bootlogd which will log in /var/log/boot. In wheezy and beyond bootlogd is in its own package and will not have /etc/default/bootlogd


8

I can't really answer the "who should I use" part of the question (as it's off-topic), but given that I do have significant experience in making sites/applications scale for high-traffic loads, I can definitely suggest that you look at getting a Reverse-Proxy CDN. The last company I worked for used Yottaa for this, and were able to use their services to ...


8

ECC RAM basically helps to prevent errors that occur when reading and writing from RAM. The chance of there actually being an error is quite small, but non-zero. I would say that if you aren't doing mission-critical stuff you could get away without ECC RAM - like I said, the chances of encountering an error that ECC would prevent is really, really small.


8

Data published by CERN IT staff (Data Integrity) would suggest that the amount of errors that comes from RAM is quite low. You still have to weight your data and the cost of hardware. You can read a bit more about this at StorageMojo.


8

Anyone with physical access to the machine, or access to the host if the machine is virtualized, can gain access and there is absolutely nothing you can do about it. The drive, whether physical or virtual, can be cloned and installed into another machine. If desired they can make whatever changes they like and put the drive, or the clone, back where they ...


8

Originally posted by cyberx86. Please remove this notice once the post has been cleaned up. This question seems to get asked a lot - usually with specific reference to Amazon's EC2 - but I think the general ideas still apply here. Firstly, see this question and this question for an advantages/disadvantages comparison of cloud vs. vps/dedicated. As ...


8

I won't try to sell you on Webmin (I'm one of the developers), but I will point out that for web hosting management, Virtualmin is the project you want...not Webmin by itself. Webmin is a general purpose systems management GUI, and does very little to make web hosting tasks easier or quicker. Virtualmin is built on top of Webmin and is intended for virtual ...


7

Of course there are providers that would make it worth having GigE. So you're serving to "web users over the internet". Right, so is that 3 visits per day or 3 million? If you're not running into performance issues with your current 100Mpbs setup, then don't bother upgrading. That said, nearly every single server that's been sold in the last, say 4 years ...


7

A VPS is usually refering to a virtual machine that only your apps run on. A dedicated server is usually physical server dedicated to you. a Cloud server is a way for the marketing idiots to get the world cloud out there as a VPS. All of these are forms of IAAS - infrastructure as a service. In doing a tiny bit a research and found one provider marketing ...


7

The most comfortable solution in long-term is to add the host to your ~/.ssh/config file. Edit/create the file and add: Host home User root Hostname myipaddress Port 6091 Then you can simply connect to home with: ssh home More info http://linux.die.net/man/5/ssh_config


7

From a web hosting provider perspective there are usually a few classes of service offered: Shared Hosting You and a bunch of other people on the same server, with no real isolation. You're all on the same network (usually a separate vLAN from the provider's other customers). Virtual Private Server Similar to (1) above, except there's isolation between you ...


7

Doesn't sound normal, but I suspect I know what the problem is. Processeur 1x VIA® Nano® U2250 I'm not positive, because it's in French, and the supplied link is not loading for me, but that's a processor for notebooks (low-end laptops). Check some benchmarks here, and this page I found through Google with some product information. The VIA ...


6

No, this is fine, and even fairly common when you have a colocation or remote site with a single server. For that matter, we have a single VLAN for our backups, which is presently populated by a single server. If you were thinking about segmenting off a VLAN on your internal network for one server, it would probably be overkill (but might not be, depending ...


6

You really don't need a separate firewall for a single host; Linux iptables is more than sufficient to protect the server, and (if you run Red Hat/CentOS) will be on and reasonably secure by default. The first thing you will want to do after the server is up is to make yourself a user account, and then secure ssh by denying root logins with a password. In ...


6

From your post: Raid Level : raid1. Two 1TB drives in a RAID 1 are supposed to yield 1TB of usable space. Everything is working as expected. Think of your hard disks as books. To prevent loss of information (e.g. in case of a coffee spill) you write all your information to two books. Now your have two books but still only room for one book of entries. For ...


6

Looks like / is full While you have almost 500GB in /home. You might wanna reallocate some more space to / for system use. Also, check /var/log as it resides on / It is very possible you have some huge log files that could be pruned to clear up some space. 10G isnt much, but can be enough.



Only top voted, non community-wiki answers of a minimum length are eligible