Archive for January, 2009
Virtual Server : Guaranteed Memory and Burstable Memory
by admin on Jan.30, 2009, under Tutorial
Guaranteed memory is defined as the usable memory out of the memory available in VPS. This is available for the user at all time. Very often this guaranteed memory can be changed to burstable memory by the VPS.
Burstable memory set a maximum limit for the memory available where as guaranteed memory is a minimum limit. That is, even if the guaranteed memory is exhausted, the users of VPS can use the memory up to the limit of burstable memory. The simplest example to understand the difference is: if the guaranteed memory of a VPS is 256mb and the burstable memory limit is 1024 mb, the users can use the remaining 768MB RAM once their guaranteed memory is completely used up. This is possible only if the host server has that much memory available with it.
It is always a procedure to keep certain part of the memory in host server as burstable. This can be used by the virtual servers when they are in need of extra memory. Also the guaranteed memory unused in any virtual server can be used by other virtual servers when they want burstable memory. It is known that guaranteed memory should be available for use for the virtual servers. So when they are in need of guaranteed RAM, they usually kill the processes that use their memory as burstable to get the memory released. So it is always better not to use the burstable memory unless it is so needed.
When trying to get a VPS server, it should be clearly understood that the memory availability that they demand is not burst memory. The guaranteed memory must be available in sufficient amount to get proper working in VPS. The memory burstable is not readily available always as it can be obtained only on a lapse of guaranteed memory by other virtual servers in the system.
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by admin on Jan.22, 2009, under Tutorial
If you are getting a server refused to allocate a PTY after a rebuild please login to HyperVM and the command console and run the following commands from the host node
vzctl exec <veid> /sbin/MAKEDEV tty && vzctl exec <veid> /sbin/MAKEDEV pty
please replace <veid> with the number id of server you want to fix. This will fix the issue. Hope help
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Server refused to allocate pty,server refused to alocated ptycPanel 11 Documentation – Basic Branding Style Editor
by admin on Jan.04, 2009, under Tutorial, cPanel
Overview
There are two ways to get to the “Edit Branding Style” page. After creating a new style through the “Create / Upload Branding” page, you are given a success page which also supplies a link to it. The second way is through clicking on “Edit This Style” in the “Available Branding Styles” listing on the “Branding Editor” page.
Using either of these ways will bring you to the “Edit Branding Style” page. On this page, you are shown two different methods to edit the style. You may choose to use the “Basic Branding Editor” or the “Advanced Branding Editor”.
Basic Branding Style Editor
The “Basic Branding Style Editor” section lists groups of images sorting by their relationship to the cPanel user interface and a style-sheet. Clicking on any of them will bring you into the actual online style editor.
- Edit Logos – Clicking on this option will bring you to the “Edit Logos” page. This page allows you to resize and drag the logo, which is located at the top of the page or upload a new one.
- Move Logo – Moving your mouse pointer over the logo will change your mouse cursor into a hand cursor, which allows you to drag the logo anywhere inside the header of the page. By default, the cPanel logo is located in the top right-hand corner of the page. You may have a different logo instead of the cPanel logo if you have changed it already. Each change is automatically written to the CSS file and saved to all of your accounts.
- Resize Logo – Moving your mouse pointer to the edges of the logo will trigger the resizing controls, these controls allow you to adjust the width and height of the logo by dragging the controls. You can drag from the corners of the logo and resize the width and height together proportionately. Each change is automatically written to the CSS file and saved to all of your accounts.
- Upload Logo – You can upload a logo in the “Upload Logo” section of the page. A reminder of the current style you are editing is provided. Your current logo is displayed here along with the ability to browse your local hard-drive for a new logo to upload. Once you find the logo you wish to upload, click on the Upload Images button to upload your logo. The logo file must be a gif, .jpg or .png and use the same file name of top-logo,gif, top-logo,jpg or top-logo,png otherwise it will not be uploaded.
- Reset – If you make any mistake such as uploading the wrong logo, the wrong size or just don’t like the version of logo you uploaded, you can revert back to the default logo by clicking on the Reset button which can be found next to the Browse… button in the “Upload Logo” section of the page.
- Edit CSS – This page also provides a link to edit the CSS file for the style you are editing. Click on Edit to switch to the “CSS Editor” page (For more info see “Edit Style Sheet“).
- Edit Icons – Clicking on this option will bring you to the “Edit Icons” page. This page allows you to change the “Main Page” icons in cPanel. A reminder of what style you are currently editing is displayed above the table that organizes the icons on this page.
- Sorting Icons – The table used to organize the “Main Page” icons can be sorted by image name, description, file name, width and height. Clicking on the columns heading for each will switch between sorting ascending and descending.
- Upload Icons – Within the table that is organizing the icons for your viewing, you can upload a replacement icon for each feature of cPanel. Click on the Browse… button, which is located next to the width and height of each icon. Clicking on this button will allow you to select a new icon to upload. The icon you upload must be named the same as the one it will be replacing. The names of each icon are listed in the table. The extension of the icon can be .gif, .jpg or .png. Your new icon(s) that you are uploading should match the dimensions of the one(s) you are replacing in the table; otherwise, some undesirable display issues may occur with the “Main Page” of cPanel.
- Reset Icons – At the end of each row that displays info about an icon, you will find a Reset button. Clicking on this will allow you to reset that icon back to the default icon for the style you are editing.
- Generate Sprites – The icons that appear on the “Main Page” of cPanel may appear to be separate icons however they are only a few images that contain a number of icons. They shift around to show what icon needs to be shown out of a large listing of icons in one image. If you need to generate a new sprite file, click on the Generate Sprites button found at the bottom of the page.
- Reset All Icons – At the bottom of the page, you are given the ability to reset all the “Main Page” icons to the default set for the style you are editing. Click on the Reset All Images Button to reset them.
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by admin on Jan.04, 2009, under Tutorial, cPanel
Overview
Clicking on this option on the “Branding Editor” page will bring you to a page that serves two functions. The ability to download branding styles for offline editing and deleting nonofficial branding styles.
Downloading Styles
- Download (System) – Indicates an “Official cPanel Style”. Clicking on this option will allow you to download the official style for offline editing. It is recommended that you rename the style before uploading it so that you are able to quickly find it in the “Available Branding Styles” listing if you are not using a custom thumbnail.
- Download (Yours) – Indicates a custom style. This can be an edited version of an official style or a style from scratch. Clicking on this option will allow you to download the custom style for offline editing. It is recommended that you keep the same name when uploading the style to avoid created another new style, unless you intend to make a new custom style based on a custom style that is already installed.
Once the style finishes downloading, find the .tar.gz file you downloaded and expand it. The .tar.gz will expand and create a new folder named as the style you downloaded. Rename that folder to identify the new style and differentiate it from others in the listing of “Available Branding Styles” once you .tar.gz the folder and upload it. You can now edit the style by replacing or editing images, text, HTML and CSS.
Deleting Styles
You cannot delete “Official cPanel Styles”. Knowing this it should be mentioned that clicking on the “Delete Style” option would only delete the modified version of an “Official cPanel Style” (Yours). When you click on “Delete Style” you will be asked if you want to permanently delete this style. Click on Yes or No depending on your intentions.
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by admin on Jan.03, 2009, under Tutorial, cPanel
Overview
cPanel 11 comes with a built-in virus scanner. Which allows you to scan your email accounts for potential viruses, only scan your home or web hosting account’s root directory for potential viruses. You may also scan your /public_html/* and all the files and directories associated with the public web space for potential viruses and scan your public FTP space and associated accounts for potential viruses.
Once you have made your selection, click on the Scan Now button and follow the remaining instructions below based on the feature you chose.
Using The Scan Mail Feature
The system will start scanning your Mail files. You will see a status section on the next page stating how many files have and will be scanned by the system. Also shown is the percentage of completion by the scanning software. In addition, the system will tell you which files are being scanned as they are being processed by the scanner.
If any infected files are found during the scan, they will appear in the “Infected Files” section of the page. You will have the option to delete the files that are infected.
If no infected files have been found during the scan, a pop-up will appear stating “Virus Scan Complete. No Virii Found.” Click the OK button to be redirected back to the Virus Scanner page.
Using The Scan Entire Home Directory Feature
The system will start scanning your Mail files. You will see a status section on the next page stating how many files have and will be scanned by the system. Also shown is the percentage of completion by the scanning software. In addition, the system will tell you which files are being scanned as they are being processed by the scanner.
If any infected files are found during the scan, they will appear in the “Infected Files” section of the page. You will have the option to delete the files that are infected.
If no infected files have been found during the scan, a pop-up will appear stating “Virus Scan Complete. No Virii Found.” Click the OK button to be redirected back to the Virus Scanner page.
Using The Scan Public Web Space Feature
The system will start scanning your Mail files. You will see a status section on the next page stating how many files have and will be scanned by the system. Also shown is the percentage of completion by the scanning software. In addition, the system will tell you which files are being scanned as they are being processed by the scanner.
If any infected files are found during the scan, they will appear in the “Infected Files” section of the page. You will have the option to delete the files that are infected.
If no infected files have been found during the scan, a pop-up will appear stating “Virus Scan Complete. No Virii Found.” Click the OK button to be redirected back to the Virus Scanner page.
Using The Scan Public FTP Space Feature
The system will start scanning your Mail files. You will see a status section on the next page stating how many files have and will be scanned by the system. Also shown is the percentage of completion by the scanning software. In addition, the system will tell you which files are being scanned as they are being processed by the scanner.
If any infected files are found during the scan, they will appear in the “Infected Files” section of the page. You will have the option to delete the files that are infected.
If no infected files have been found during the scan, a pop-up will appear stating “Virus Scan Complete. No Virii Found.” Click the OK button to be redirected back to the Virus Scanner page.
