"What is VPS server service?" are questions that are often asked for beginners to use this service. Below are answers to these questions.
Renting services VPS (Virtual Private Server) is a form of virtual server created by the method of dividing a physical server into many different servers with nearly as private server (dedicated server), running in the form of division Share resources from that original physical server.
Each virtual server VPS is a completely isolated system, has a part of its own CPU, its own RAM capacity, capacity of its own HDD, private IP address and own operating system, users have full control over root and You can restart the system at any time.
2. What is a virtual server VPS used for?
Today VPS services are widely used in businesses and small business models. But often VPS is used for the following needs:
- Game server (game server).
- Hosting multi-service website (sales website, e-commerce website, forums, websites with large traffic ...)
- Develop platform.
- Server for enterprise email system.
- Run live media programs.
- Create virtual environments for programming, virus analysis, research ...
- Store data: documents, images, videos ...
Compare VPS and Cloud server to find advantages
1. Convenient in management
When comparing VPS and Cloud server, we can see common VPS services, most of them only provide customers with admin or root accounts for remote access. Jobs such as booting, backing up, reinstalling the OS must send the request to the service provider. There is a free place to work but there is also a fee. Generally customers are not proactive.
On the VPS cloud, customers are provided with a portal account, customers can actively start, turn off, backup, reinstall OS from the local image or available on the system. Customers will be proactive in every situation.
2. Flexible scalability
When comparing VPS and Cloud server, we see that VPS is usually hosted on a single server, when customers want to upgrade VPS, if that server still has resources, it is okay, but if the server is running out of resources Reserve, the upgrade will interrupt VPS 1 time, though not much.
As for VPS cloud, the reserve resource is very much and always ready to upgrade VPS, the allocation is also very fast.
With outstanding features, the service of VPS cloud is the current trend of suppliers and is also the choice of customers.
3. High safety
Compare VPS and Cloud server, we see that VPS is usually deployed on physical servers, so if there is a problem with this server, the VPS will be affected. So what happens when that physical space has a problem? Because it is physical and unique, so with VPS is usually created on the same server, the risk of device failure leading to loss of your data is very high. Meanwhile, if using the Backup mechanism for VPS, the cost is not cheap and not all IDC providers will support the problem of infrastructure ...
As for VPS cloud, VPSes are hosted on a system consisting of multiple physical servers, which the server has trouble, then that VPS is automatically transferred to the host on another machine in the system. This ensures availability for VPS.
Combined with Vmwave and Citric's advanced virtualization platform, in which VPS Cloud operates automatically. Any small details in the Cloud system will fail, the system will automatically switch your VPS cloud package to another space. As such, the customer service is always continuous, the risks of physical server are no longer available.
4. Cost savings
Using VPS often, the scalability is very limited due to depend on physical VPS, while with Cloud VPS, you only pay the cost for the parameters you need (HDD, RAM, Capacity ...). Upgrade / downgrade (when demand drops) easily will save you a lot of costs for the service.
How to manage VPS effectively
1. Ping
From your computer: in cmd type: ping 1.2.3.4 -t
Your device will check the connection to VPS to see if the connection to the VPS ensures connection. With a normal network connection, the ping will be about 70 ~ 90 ms.
2. Check VPS management system
a. Check the amount of CPU
Use the command: cat / proc / cpuinfo
The "processor" line will indicate the number of cores you have, the first kernel starts at 0. So if you are granted a core, you will see a CPU message board appear and the processor line has a number of 0, if you are granted 2 cores, you will see 2 CPU messages appear, the first is 0, the second is 1.
The "model name" line will indicate the CPU you are using.
The line "cpu MHz" will indicate the amount of Mhz on that core.
AppVZ designed the amount of CPU level for VPS to be at twice the level of the registration level of your VPS. For example, if you use a VPS-1 package with 25% Core (~ 666Mhz) then you will see the level up to 1.33Mhz, the VPS-2 package has 50% Core (~ 1.33GHz) then you will see 2.66Ghz. And from VPS-3 package you will find 2 Core.
The purpose of this design is to help you make the most of the CPU on the server to avoid unnecessary waste. However, if you continue to use the CPU level, then we can proceed to limit the amount of CPU back to the level you registered. We recommend that in this case you should upgrade higher VPS packages because the CPU makes a big decision on the data processing capability of VPS.
b. Check the amount of RAM
Use the command: free -m
The "Total" column will tell you the total amount of RAM you have (including extra RAM), for example if you use 512MB of real RAM and Burst to 768MB, you will see a total of 768 RAM.
The used column indicates the amount of RAM you have used and the free column indicates the amount of RAM remaining.
A good VPS is a consumable RAM level of between 1/2 and 2/3 of the real RAM. If the amount of RAM is used on 3/4 and can reach the end of RAM, we recommend that in this case you should also upgrade the VPS package because RAM determines the ability to maintain operation, if the amount of RAM is exhausted, it will cause output overload VPS.
c. Uptime check
When the server is running continuously, you check the time of VPS from the time of delivery to the time of checking but larger than the uptime, you should report back to check.
Use the command: # uptime
d. Check hard drive write speed
Use the command: # dd if = / dev / zero of = 1GB.tmp bs = 1024 count = 1M conv = fdatasync
The report will show how long it will take to copy 1G of data to the hard drive and how fast the speed (> 50Mb / s is,> 100Mb / s is very good and below <50MB / s you can find the provider other level)
e. Check hard drive capacity
Use the command: # df -h
So with just a few basic operations, you can manage your VPS effectively at home or work agencies. In other cases, you can contact the service provider directly to help manage VPS in the best way.
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