Question 1

How do I reboot my VPS server?

Accepted Answer

You can do it by clicking the reboot icon in the Quick Management module (Services->Products/Services->QM)For other VPS go to Services->Products/Services->View Data->RebootYou can also use the VNC module there as well.

Question 2

How to reset a CentOS VPS password?

Accepted Answer

1. Connect to your VPS using VNC (See here for more details on how to connect using VNC)2. Restart your VPS by pressing "Ctrl+Alt+Delete" from the VNC client menu or from the VPS control panel3. While booting, press [ESC] several times to abort the autoboot and get to the GRUB menuGRUB is one of the first items to start during the boot process.If you skipped the GRUB menu and the server starts booting, you must restart the VPS and start over4. In the GRUB boot menu, press [e] to edit the boot itemFor Centos64.1 . Select the second line starting with "kernel /boot/vmlinuz-…" and press [e] to edit.4.2 Press [End] to go to the end of the line, add " init=/bin/bash" (without the quotes, with a space before init)4.3 Press [Enter] to save and return to the menu (as in step 5.)4.4 Press [b] to load5. Find the kernel line starting with "linux /boot/vmlinuz-…" (may vary slightly depending on the OS)6. Press [End] to go to the end of the line, add " init=/bin/bash" (without the quotes, with a space before init)Note that the line may not fit the width of the screen, be terminated by the `\` symbol, and continue to the line below7. Press [Ctrl+X] or [F10] to load8. After starting the system you will find yourself at the bash root command lineyou can press [Ctrl+L] to clear the screen of messages after booting9. Run `mount -o remount, rw /` to remount the root file system in rw-mode with the ability to write10. Run `passwd` and follow the instructions to change the root password11. Reboot the VPS from the VPS control panel or by pressing "Ctrl+Alt+Delete" in the VNC client menu.

Question 3

The best OS for a web server

Accepted Answer

In fact, choosing the best VPS OS is quite easy. The choice depends solely on your goals and your preferred type of software/scripts/management. Windows-based software such as .ASP NET, Virtual Basic and so on require a Windows Server environment, which means that the choice is quite easy. The ability to access files from anywhere in the world using the RDP protocol while remaining within a familiar interface is a great advantage of the Windows environment. However, most tasks are best handled by Linux/FreeBSD based systems due to their higher peak performance, ease of management and better stability. The most popular system for VPS is CentOS (Community Enterprise OS) from Red Hat Enterprise Linux. It is a free OS, compatible with most control panels, various popular software, and regularly updated. We provide several versions of CentOS that are compatible with popular control panels (WHM, DirectAdmin, Virtualmin and ISP Manager). However, since some customers require operating systems such as Fedora, Ubuntu, Debian or FreeBSD, we also provide support for several of the latest versions of these operating systems.

Question 4

VPS CPU load (process monitoring)

Accepted Answer

The CPU value for an individual process shows how much CPU time the individual process consumed during its allotted clock cycle.For example. You have 100 processes running, so the CPU will divide the time per unit of time (e.g. one second) among all those processes according to its internal scheduler. If you assume for example that all processes receive equal fractions of time, one process in a second will receive 1/100 of a second (0.01 second), during which it must manage to process its internal task queue.Therefore, if a process takes 0.005 seconds, it will show up as 50%. If it takes 0.03 seconds you will see 300%. But because other processes usually manage to finish their tasks much faster, these figures are quite acceptable for most systems.The most important numbers are "load average:" which shows the total CPU load (per minute, 5 minutes and 15 minutes). For a single CPU core the acceptable figure is "1.00", which in this case means that CPU time is 100% allocated (not to be confused with CPU load), respectively for 4 cores the figure would be "4.00". For different systems the load can be considered differently, for you an acceptable load "load average:" can be taken as numbers up to 10-15 (in one minute).Also indirectly the load of the system can be determined by the delayed execution of commands in the SSH console itself. That is, if you see that commands are processed very slowly (even typing is not going immediately), it is likely that the load is exceeded.The second important parameter is your memory usage. Using the example of a VPS which is actively using 346 MB of 512 RAM:[root@user ~]# free -mtotal used free shared buffers cachedMem: 1001 994 7 0 4 643-/+ buffers/cache: 346 655Swap: 2047 0 2047[root@user ~]#You need to be careful that the "used" value does not start to grow larger than the memory allocated to the VPS, as this will cause the Swap memory (which is slower) to be used. In the output of the "top" command, you can see the value of the memory used by each process in the column called "RES" (the columns can be sorted by pressing "O" first, then "q", then "Enter").

Question 5

How do I get additional IP addresses?

Accepted Answer

You can get up to 5 IPv4 addresses depending on your VPS or Dedicated Server plan. Smaller plans get fewer IPs.If you have not ordered enough IPs, the server can be upgraded in the Customer Portal or through a Support Ticket.In case your project requires more than 5 IPv4 per server, please open a ticket to Customer Support and we will try to help you.

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