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Confusing several concepts: Mbps, Mb / s, MB / s.VPS / server network bandwidth of the basics of purchasing articles

The so-called 10M bandwidth, I was referring to 10Mbps (megabits), which is 1.25MB / s, but this is only a theoretical speed, in fact, but also minus wear and tear. 10M bandwidth according to this argument the fastest download speed is 1.25MB / s, 100M bandwidth of the fastest download speed is 12.5MB / s.

Buy VPS, stand-alone server will be related to a problem is that service provider’s network bandwidth.

1, we often hear such and such a server, IDC provides exclusive access to bandwidth is 10M or 100M share of the class of data. Here, 10M, 100M in the end what is the idea?VPS / server network bandwidth of the basics of purchasing articles

2, in the above we have come into contact with the MB / s, which MB / s and Mb / s What is the difference where? 阅读全文 »

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After the Xen server installed with the Xen virtual machine users increase, the need to regularly look at the Xen server (host) state, and various virtual machine (guest) of the operation, taking up system resources. There are already lots of monitoring tools for Xen can be used, but do not advocate the abuse VPSee third-party tools, will increase the burden on dom0, as well as a security risk, keep it simple (KISS), as far as possible with a simple tool to do things (do not understand why someone would write a note, still use Word, Notepad you can easily get to ah, this again makes me think of Vi vs IDE ~ ~). VPSee of several Xen servers are only used to provide a virtual single service, dom0 only to provide hardware abstraction, a hypervisor layer to a domU, so it should keep dom0 streamlined, but also for safety, do not advocate the dom0 to install and run any non – the necessary software. To monitor the Xen server, then the best is to use better command-line tool that comes with Xen. 阅读全文 » Some commonly used to monitor Xen server commands

Article Source : Some commonly used to monitor Xen server commands

Therefore, VPSee intends to own SUN server, using a platform made to donate the Xen server, to each sub-Honours, a virtual system, saving their own virtual machine loaded the time and resources, VPSee become a free Xen VPS provider: the ). SUN servers running 16 instances of Xen virtual system, each equipped with 256 MB RAM, 4GB hard drive, not open GUI. The following installation steps and configuration process is based on CentOS 5.3 version, Ubuntu version may refer to: In the Ubuntu install and configure Xen. 阅读全文 » On the CentOS install and configure Xen

Now labs are equipped with a Taiwan Masters, and a laptop PC, but only to Honours with a Taiwan PC, 1 machine very easy to do the project, development is often used in multi-system, such as some people do is to VoIP phones related projects, mobile client interface to Windows platform to do, VoIP server to use to Linux, so use a Linux virtual machine virtual out, if they are running on a single physical machine will be very slow. Now configure the PC to the Honours only 1G of memory, if you are running Windows + mobile emulator + Elipse IDE (needs Java) + VMware (VMware on a rerun a Linux + Asterisk + MySQL), and then open a client of incoming mail, open a few a browser, viewing the information would be very difficult.On the CentOS install and configure Xen

Article Source : On the CentOS install and configure Xen

Now the Internet is very insecure, many people have nothing to Take the number of scanners scan ssh port, and then attempts to connect to ssh brute-force port (exhaustive scan), it is proposed that vps hosting space, try to set up a complex ssh login password, although the Linux VPS was introduced some time ago to prohibit the use of an IP access hosts.deny prohibit certain IP access, but the lack of functionality, such as: does not automatically shield, then what better way to do, you can use this software in denyhosts It will analyze / var / log / secure (redhat, Fedora Core) and other log file, when discovered during the same IP multiple SSH password attempts will be recorded when the IP to / etc / hosts.deny files, so as to achieve automatic shielding of the IP purposes. 阅读全文 » Linux VPS to stop SSH brute force attack on the DenyHosts

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Veeble This is a VPS in the United States Scranton PA and Germany, Frankfurt two places to rent a server, with the VPS in Germany than in the United States shall expensive one U.S. dollars, possibly because of more expensive European bandwidth reasons. Domain show this. Org domain names registered until September 2009, the relatively new a VPS provider, to provide 27 / 7 technical support. VPS configuration is as follows:$4 256MB OpenVZ VPS-Veeble

No server configuration information.

Server in Scranton PA, USA, or Frankfurt, Germany
HyperVM Control Panel
10GB hard drive
256MB Guaranteed/512MB Burst
100GB bandwidth limit
4 U.S. dollars$4 256MB OpenVZ VPS-Veeble

Article Source : $4 256MB OpenVZ VPS-Veeble

HostingInside, run by Taiwanese people, lacks it say, that is cheap, Introduction to see here:
XENnode, is not that the U.S. open, the evaluation is also a good brief look at here:
Linode and Nerios, are HE Fremont room for VPS providers, the former super-good word of mouth, there is little to complain about it, which is my new discovery of the computer room of the VPS, a trial has not yet found someone.
ARPNetworks, room with HE Fremont close, there is HE bandwidth, stability, and good, but the domestic route to the room there is often a problem, Ping value of more than 200ms in general, not normal at more than 300ms. However, IPv6 is estimated that the network will be running in HE, stability should be better. 阅读全文 » Support for IPv6, the US VPS

IPv6 is the next generation of Internet standards, part of the network has begun to support IPv6, Education Network is the opening of the first IPv6 network, is still in the experimental stage, the high sample are basically free IPv6 connectivity, you can directly through the IPv6 access to foreign websites. The inside of a wall in the IPv6 network is not available, an increase of students using the IPv6 dynamic, this article describes some support for IPv6 for all to purchase the U.S. VPS.Support for IPv6, the US VPS

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In other countries, especially the United States such copyrights very strong country, more than 90% of the servers are Linux. Why? Sentence: Linux free, stable, good performance and low cost!Why Windows VPS in the US much better than Linux VPS expensive?

In the United States, 80% of the programmers and technicians are based on the Linux platform.Only 20% of the technicians is a Windows platform, so the cost of expensive technical manpower.
And on the Windows operating system itself, Microsoft is genuine to the monthly charge exorbitant licensing fees. This part of the money has undoubtedly passed on to the consumers.
Software costs: Windows genuine software, the system almost all of money, but most of the software under the Linux system are free of charge, which also led to the cost gap.
Thirdly, since the majority of foreign owners are using Linux vps, then the Windows VPS on a relatively small market, IDC is necessary to invest more to maintain its cost.
To sum up, in the same room, the same configuration context, Widnows VPS on the much more expensive than the Linux VPS. 阅读全文 » Why Windows VPS in the US much better than Linux VPS expensive?

Article Source : Why Windows VPS in the US much better than Linux VPS expensive?

This article only discuss Linux VPS, Windows is not the discussion of the context of;
1. Choose which country’s VPS?
Most of the students pursue but there are two points, one point is the speed, another point is stable. Choice is the United States. And then remove the United States, western Canada, the host also can be considered. The United States is the world’s Internet center, hosting business is very well-developed, super-multi-room, VPS providers is plethora, the price naturally is very cheap. The cheapest about $ 5 a month you can win, this is also a number of owners, “immigrants” an important reason why the United States.How to choose a foreign VPS

Choose a high-quality high-speed host is very important. As the virtual host host resources to support the environment, all sorts of restrictions, many owners choose VPS (Visual Private Server), this article, we will come together to talk about how to choose a foreign VPS.

2. How to choose VPS providers?
2.1 to see word of mouth
Select the host providers, first of all look at word of mouth (down machine frequency, ticket processing is timely, it had lost customer data, etc.), this I will not say human flesh can be the next host provider, there’s places to go and see, that is, WHT (WebHostingTalk), a super-busy place, Kangzj no more to say. 阅读全文 » How to choose a foreign VPS

Article Source : How to choose a foreign VPS

As x86_64 compatible with x86, 32 bit Windows and Linux operating systems can be a very good run on the CPU on x86_64. x86-CPU can only run 32-bit operating system, and x86_64 only the CPU can run 64-bit operating system, you can also run 32-bit operating system.VPS hosting select 32bit or 64bit?

Linux operating system, Linux kernel and applications is divided into two parts. x86_64 CPU can run 64-bit Linux kernel, and 32-bit applications, while the 32-bit line Linux kernel can not run 64-bit programs.

x86_64 is designed in recent years, AMD introduced 64-bit CPU architecture, x86_64 architecture has just launched when they were called AMD64. x86_64-compatible 32-bit x86 architecture is a very successful 64-bit CPU architectures. Intel in AMD after the launch of x86_64, also launched its own x86_64 architecture CPU, but Intel called x86_64 for Intel64, EM64T.
32-bit and 64-bit systems the advantages and disadvantages

See Linux kernel is 32-bit or 64-bit, you can run the command: uname-a, see the application run the command: file / usr / bin / *.VPS hosting select 32bit or 64bit?

I had used DiaHosting, Rashost, Photonvps, Linode, Rapidxen and a number of 32 bit and 64 VPS, experience also shows that, unless you have a special needs 64-bit, otherwise it is recommended that the use of low-cost, high speed 32-bit System

Before I gave a briefing on VPS purchase of related articles, said today that the following VPS select 32-bit or 64-bit.
32-bit and 64-bit pre-existence of present and future

Currently widely used CPU architectures are x86 and x86_64. Where x86 is the early introduction of Intel’s 32-bit CPU architecture, previously used by the vast majority of our desktop CPU is x86 architecture, including some of AMD’s CPU.

64-bit system can access more than 4GB of memory address space of the large, compared with 32-bit systems can only access 4GB of memory address.
64-bit performance of the system have some improvements, because there are 16 general-purpose CPU registers, compared with 32-bit systems only 8.
Through the use of optimized x64-64 CPU instruction, performance upgrade.
Look at the web application tests show that the same 64-bit systems than 32-bit systems to consume at least 60% or more of memory, which implies the need to pay more costs.
Performance loss, because the 64-bit is 8 bytes, compared with 32-bit system, only 4 bytes.

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