57

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 ...


25

Geolocation is not an exact science. The databases are full of errors and misinformation. Note: OVH do not appear to have a Spanish DC. Who is passing on terminological inexactitude I wouldn't like to say. Looking at the output of mtr to both of the IPs listed, it appears that both systems are likely located in the OVH Gravelines DC in France. sudo ...


20

From what I've seen, there are five things to be aware of for i-series processors vs Xeon series processors: Xeon processors can typically be used in motherboards that support multiple CPUs; 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 ...


19

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 ...


19

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 ...


18

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 ...


17

Short version: Dedicated Instances - You pay for the instances, but they get placed on whatever dedicated hardware Amazon decides. Dedicated Host - You pay for the entire physical server and can, in effect, run instances on it as you please. Long version: In both cases, its hardware that only your instances will use. However with dedicated hosts you have ...


13

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 - ...


13

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


12

High availability without some kind of load balancing using a dedicated server would not be possible. You would need to have 2 servers and there are some software options for load balancing. Windows does offer a load balancing service. Seems to work rather well however you would need a very low end 3rd server. Two question: How are you going to replicate ...


12

There is another way to check, which is to query some BGP looking glasses. This is generally more reliable than GeoIP (as mentionned by @Jacob, GeoIP databases vary in quality and freshness), since BGP is the protocol for routing the ranges across the cyberpipes (or is it interwebz). Generally, you'll need to check a few locations to make sure you aren't ...


12

In the best case, it will be of similar performance (with a slight performance impact due to the virt overhead). In the worst case with a bad provider, you end up in a "up to X" situation where the provider overcommits resources and if people start to use those resources, things get slow. VPSs are cheaper because even a good provider can overcommit (...


11

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.


10

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.


10

ssh -p 6091 root@myipaddress -p port Port to connect to on the remote host. This can be specified on a per-host basis in the configuration file.


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

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 to ...


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


9

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 Nano ...


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

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.


7

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 ...


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 ...


6

The problem with your analogy is that in your case you're really worried about the hotel owner being a pedophile. All the tape in the world won't help: they can simply keep the chaperone off the floor for a while & re-tape the door when they're done. Instrumenting your servers is a good step to montor against attacks, but you need to find a hosting ...


6

Comparing Linode's Dual Quad-core Xeon CPUs vs your dual Atom D510 is like comparing a Lamborghini with a mobility scooter. The Atoms have a tiny percentage of the processing power of modern CPUs. In fact, their performance is even poor compared to CPUs from 6 years ago. They are not built for grunt, but for small low-power devices such as "netbooks". ...


6

What is a non-critical server? One that can fail? ECC RAM is fundamental when memory reliability is fundamental. Two things grow with the growth of memory sizes: the reliance of software on memory, esp. server software (take e.g. caching) the probability of memory error (p = num_bits * p_bit_failure) This intel presentation on ECC reports these facts: ...


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

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

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 ...


5

Don't use a scheme where the system has more memory available than you actually want it to use. Operating systems assume that free memory is wasted and try their best to find some way to use it. Limit the OS to only the memory you want it to use and you won't have a problem. Free memory is like money in a checking account. If it's there, it'll get used.


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