In Feburary 2016 28,
Oracle servers run both an Oracle database and listener process. One Oracle listener, which you can configure to support multiple databases, receives and manages client connection requests. If the listener receives more requests than it can handle, user requests can time out; in this case, restarting the listener will resolve the error.
Database Connection
Oracle database connection requests aren't processed unless they include authentication information such as a user name, password and the name of the Oracle service. If the authentication services aren't running or the password name is incorrect, communication efforts will fail. Similarly, if the Oracle database locks up and fails to respond to database queries, Oracle will report a failure. According to “Oracle Dba on Unix and Linux” by Michael Wessler, if the Oracle database itself crashes, the program's background processes such as PMON and SMON will terminate, and you will receive an “ORA-12637 packet receive failed” or 'TNS: packet writer failure' message.
Server & Hardware
The Tnsnames.ora file on your computer contains references to Oracle servers with which it regularly communicates. If a server name is incorrect or incomplete, Oracle can't connect to it. If the port referenced in the Tnsnames.ora file isn't open, you may see an “ORA-12637 packet receive failed” message. Router and network interface controller, or NIC, card failures also cause this problem, as can insufficient server disk input/output and system memory.
Communication
Packet communication errors can occur when a network's data traffic is so great that the time-out limit hits before your computer receives a response from the Oracle server. If the packet sizes are too large for the server to process, you can change the transport date unit, or TDU, parameters in the Tnsnames.ora file. If a network router fails and the data packets are routed to other nodes that cannot handle the load, error messages will result. You also might see errors from a malicious denial-of-service attack, or hackers turning off the Oracle listener, although the latter appears as a process failure.
In Feburary 2016 28,
Sunday, 28 February 2016
How to View FTP SitesIn Feburary 2016 28,
In Feburary 2016 28,
Click the 'Tools' menu in Internet Explorer, then click 'Internet Options.'
Click the 'Advanced' tab in the window that appears.
Ensure that 'Enable folder view for FTP sites' is checked, then click 'OK.'
Enter 'FTP://' in the address bar, followed by the URL of the FTP server to which you want to connect.
In Feburary 2016 28,
Click the 'Tools' menu in Internet Explorer, then click 'Internet Options.'
Click the 'Advanced' tab in the window that appears.
Ensure that 'Enable folder view for FTP sites' is checked, then click 'OK.'
Enter 'FTP://' in the address bar, followed by the URL of the FTP server to which you want to connect.
In Feburary 2016 28,
How to Uninstall Foxy ProxyIn Feburary 2016 28,
In Feburary 2016 28,
Launch Firefox. Click the 'Tools' menu at the top of the window, then select 'Add-ons.' The Firefox Add-ons window will appear.
Click the 'Extensions' button at the top of the Add-ons window.
Click 'FoxyProxy,' then click the 'Uninstall' button. A window asking you to confirm that you want to uninstall Foxy Proxy from Firefox will appear.
Click the 'Uninstall' button to confirm the uninstallation.
Click the 'Restart Firefox' button to restart the browser and finish removing Foxy Proxy.
In Feburary 2016 28,
Launch Firefox. Click the 'Tools' menu at the top of the window, then select 'Add-ons.' The Firefox Add-ons window will appear.
Click the 'Extensions' button at the top of the Add-ons window.
Click 'FoxyProxy,' then click the 'Uninstall' button. A window asking you to confirm that you want to uninstall Foxy Proxy from Firefox will appear.
Click the 'Uninstall' button to confirm the uninstallation.
Click the 'Restart Firefox' button to restart the browser and finish removing Foxy Proxy.
In Feburary 2016 28,
Flexisign TipsIn Feburary 2016 28,
In Feburary 2016 28,
To get the best out of FlexiSign, you must make sure that your monitor is properly configured to view colors correctly. Even if you use a high-end monitor the screen may appear slightly skewed and not quite as sharp as it could. This can often be cleared up with a third-party monitor testing program. This will help your computer to readjust to test your monitor for resolution, brightness, contrast, geometry, screen regulation and more. A simple online version of this type of program is available at the Display Calibration site. For optimal monitor calibration, you may need a hardware device that corrects display issues.
New Color Profile
Once you have optimally calibrated your monitor, you must make sure that it syncs up with your printer and ink combinations for proper color output during your prints. FlexiSign accomplishes this by importing appropriate International Color Consortium (ICC) profiles, which make sure your colors are set a particular way. When a client gives you an ICC profile, import it by going to Production Manager in the program and clicking on 'Default Job Properties.' Click the 'Perform Color Correction' box, 'Add,' and then browse and select the ICC profile. Select 'Add' from the Linearization table drop-down menu and then pick the ICC profile again but this time with a Tone Reproduction Curve (TRC) extension. Click 'Open' to install the ICC profile. It will now appear in your Production Manager, Flexi RIP and Print sections.
Don't Overcompress
When saving an image in FlexiSign there is an automatic suppress option to make sure that your file size does not get too large. The problem is that this will affect the quality of your digital image. Using the JPG format in FlexiSign or any other editing program will cause your image to lose quality. If you must submit the JPG file format -- as opposed to a compression-free image like a TIF -- uncheck the 'Suppress' box when saving the file. This will bring up a sliding scale of how much you wish to compress the image. Move the compression to 0 percent and click 'OK'; then 'Save.' This will keep your image quality as high as possible.
Preview Before Printing
Printing at full scale in FlexiSign should be reserved for the last step when you are sure that there are no errors in your design. Before doing this, preview your image using the FlexiSign viewing options. Click on either 'Actual Size,' 'Actual Pixels' or '1:1' to view the file at the print size. Step back five feet or so and look to see if there are any problems with the sign that can be perceived with the naked eye. Be vigilant in your checking and double-checking to ensure that you will have the best image possible before printing.
In Feburary 2016 28,
To get the best out of FlexiSign, you must make sure that your monitor is properly configured to view colors correctly. Even if you use a high-end monitor the screen may appear slightly skewed and not quite as sharp as it could. This can often be cleared up with a third-party monitor testing program. This will help your computer to readjust to test your monitor for resolution, brightness, contrast, geometry, screen regulation and more. A simple online version of this type of program is available at the Display Calibration site. For optimal monitor calibration, you may need a hardware device that corrects display issues.
New Color Profile
Once you have optimally calibrated your monitor, you must make sure that it syncs up with your printer and ink combinations for proper color output during your prints. FlexiSign accomplishes this by importing appropriate International Color Consortium (ICC) profiles, which make sure your colors are set a particular way. When a client gives you an ICC profile, import it by going to Production Manager in the program and clicking on 'Default Job Properties.' Click the 'Perform Color Correction' box, 'Add,' and then browse and select the ICC profile. Select 'Add' from the Linearization table drop-down menu and then pick the ICC profile again but this time with a Tone Reproduction Curve (TRC) extension. Click 'Open' to install the ICC profile. It will now appear in your Production Manager, Flexi RIP and Print sections.
Don't Overcompress
When saving an image in FlexiSign there is an automatic suppress option to make sure that your file size does not get too large. The problem is that this will affect the quality of your digital image. Using the JPG format in FlexiSign or any other editing program will cause your image to lose quality. If you must submit the JPG file format -- as opposed to a compression-free image like a TIF -- uncheck the 'Suppress' box when saving the file. This will bring up a sliding scale of how much you wish to compress the image. Move the compression to 0 percent and click 'OK'; then 'Save.' This will keep your image quality as high as possible.
Preview Before Printing
Printing at full scale in FlexiSign should be reserved for the last step when you are sure that there are no errors in your design. Before doing this, preview your image using the FlexiSign viewing options. Click on either 'Actual Size,' 'Actual Pixels' or '1:1' to view the file at the print size. Step back five feet or so and look to see if there are any problems with the sign that can be perceived with the naked eye. Be vigilant in your checking and double-checking to ensure that you will have the best image possible before printing.
In Feburary 2016 28,
Microsoft Exchange Server TutorialIn Feburary 2016 28,
In Feburary 2016 28,
Microsoft Exchange Server is part of the Microsoft Windows Server line, and is intended to deliver a platform for messaging and collaboration. The primary features of Exchange Server include email, calendaring, contacts and tasks. Exchange Server also provides a platform for mobile and web-based users who need to be able to access their data remotely, as well as support for data storage.
Enhanced Features
Microsoft Exchange Server was first launched in 1996; more recent versions, such as Exchange Server 2007 and recently released Exchange Server 2010, include many enhancements from its original version. Some of these are:
Security: Exchange Server now includes anti-spam and anti-virus filtering, as well as encryption technology. This protects users' data from outside intrusion and corruption.
Data Protection: Exchange Servers can be used in a cluster environment, which replicates the data across several servers and guarantees its availability. In this way, there can be no single point of failure; if one server goes down, the other servers will pick up the slack and continue to provide data to users.
Unified Messaging: Exchange Server allows users to receive voice mail, email, and faxes in their mailboxes. In addition, remote users can access their mailboxes from cell phones and other wireless devices.
Improved IT Experience: Exchange Servers are completely scalable, and include 64-bit performance. There is a simplified graphical user interface (GUI) to make administration easy, and an improved deployment and routing process.
Exchange Server Roles
As a network administrator, you can choose which server roles to install on an Exchange server. Server roles are used to logically group specific features of Exchange together, which helps to simplify installation, and gives you the ability to fully customize your Exchange Server to meet your company's specific needs.The types of server roles include:
Mailbox Server: This server runs on the back end, and hosts mailboxes and public folders.
Unified Messaging Server: This is the middle-tier server that connects a Private Branch Exchange system (PBX, commonly referred to as a phone system) to Exchange 2007.
Client Access Server: This is the middle-tier server that hosts all client protocols, such as Secure Hypertext Transfer Protocol (HTTPS), Post Office Protocol 3 (POP3), Internet Message Access Protocol 4 (IMAP4), and Outlook Anywhere. The Client Access Server can also host Web services.
Hub Transport Server: This server is responsible for routing all mail within the Exchange organization.
Edge Transport Server: This server typically sits on the perimeter of the network topology, and is responsible for routing mail into and out of the Exchange organization.
For the End User
Clients that are using Exchange Server to access their data will typically use Microsoft Outlook, part of the Microsoft Office suite. However, there are alternatives. If a client wishes to connect to their email through a website, they can use Outlook Web Access (OWA). And for Mac users, both Microsoft Entourage and Apple Mail can be used to connect to an Exchange Server.
In Feburary 2016 28,
Microsoft Exchange Server is part of the Microsoft Windows Server line, and is intended to deliver a platform for messaging and collaboration. The primary features of Exchange Server include email, calendaring, contacts and tasks. Exchange Server also provides a platform for mobile and web-based users who need to be able to access their data remotely, as well as support for data storage.
Enhanced Features
Microsoft Exchange Server was first launched in 1996; more recent versions, such as Exchange Server 2007 and recently released Exchange Server 2010, include many enhancements from its original version. Some of these are:
Security: Exchange Server now includes anti-spam and anti-virus filtering, as well as encryption technology. This protects users' data from outside intrusion and corruption.
Data Protection: Exchange Servers can be used in a cluster environment, which replicates the data across several servers and guarantees its availability. In this way, there can be no single point of failure; if one server goes down, the other servers will pick up the slack and continue to provide data to users.
Unified Messaging: Exchange Server allows users to receive voice mail, email, and faxes in their mailboxes. In addition, remote users can access their mailboxes from cell phones and other wireless devices.
Improved IT Experience: Exchange Servers are completely scalable, and include 64-bit performance. There is a simplified graphical user interface (GUI) to make administration easy, and an improved deployment and routing process.
Exchange Server Roles
As a network administrator, you can choose which server roles to install on an Exchange server. Server roles are used to logically group specific features of Exchange together, which helps to simplify installation, and gives you the ability to fully customize your Exchange Server to meet your company's specific needs.The types of server roles include:
Mailbox Server: This server runs on the back end, and hosts mailboxes and public folders.
Unified Messaging Server: This is the middle-tier server that connects a Private Branch Exchange system (PBX, commonly referred to as a phone system) to Exchange 2007.
Client Access Server: This is the middle-tier server that hosts all client protocols, such as Secure Hypertext Transfer Protocol (HTTPS), Post Office Protocol 3 (POP3), Internet Message Access Protocol 4 (IMAP4), and Outlook Anywhere. The Client Access Server can also host Web services.
Hub Transport Server: This server is responsible for routing all mail within the Exchange organization.
Edge Transport Server: This server typically sits on the perimeter of the network topology, and is responsible for routing mail into and out of the Exchange organization.
For the End User
Clients that are using Exchange Server to access their data will typically use Microsoft Outlook, part of the Microsoft Office suite. However, there are alternatives. If a client wishes to connect to their email through a website, they can use Outlook Web Access (OWA). And for Mac users, both Microsoft Entourage and Apple Mail can be used to connect to an Exchange Server.
In Feburary 2016 28,
How to Increase the Connection Timeout in FTPIn Feburary 2016 28,
In Feburary 2016 28,
Click the 'Start' button, the radio button on the task bar, and then type in 'Internet Information Services' in the quick search. Click the program link when it is available and then press 'Enter.'
Click the '+' next to 'Sites.' Then click the FTP site. You have already created this, so click the name with which you are familiar.
Click 'Advanced Settings,' beneath 'Manage Web Site' on the right-hand side of the window.
Expand the 'Connection Limits' section by clicking the '+' next to it. Change the 'Connection Time-out Seconds' parameter to whatever figure you want, by clicking the box and typing the number in. Press 'Enter.' You have now changed your connection time-out.
In Feburary 2016 28,
Click the 'Start' button, the radio button on the task bar, and then type in 'Internet Information Services' in the quick search. Click the program link when it is available and then press 'Enter.'
Click the '+' next to 'Sites.' Then click the FTP site. You have already created this, so click the name with which you are familiar.
Click 'Advanced Settings,' beneath 'Manage Web Site' on the right-hand side of the window.
Expand the 'Connection Limits' section by clicking the '+' next to it. Change the 'Connection Time-out Seconds' parameter to whatever figure you want, by clicking the box and typing the number in. Press 'Enter.' You have now changed your connection time-out.
In Feburary 2016 28,
How to Upload Files to a Charter WebsiteIn Feburary 2016 28,
In Feburary 2016 28,
Open your Internet Explorer Web browser. If you don't want to use Internet Explorer, you can open another FTP program on your computer such as CuteFTP, BulletProof FTP and FileZilla. These types of FTP programs can be downloaded online for free.
Type 'ftp://webpages.charter.net/yourusername' in the address bar of Internet Explorer. If you chose to use a different FTP program, simply type the information into the designated field. You will be prompted to enter your Charter website user name and password.
Notice the split screen that appears after logging in. Each side of the screen contains files. The files on the left side are your computer files. Those on the right are files that are already uploaded to your Charter website.
Click on each computer file that you want to upload to your Charter website. Hold down the 'Ctrl' key to select multiple files.
Hold down your left mouse button as you drag the computer files over to the right-hand side of your screen (the side that contains your current Charter website files). Release your mouse button to 'drop' the files in place. The files will automatically be uploaded to your Charter website server.
In Feburary 2016 28,
Open your Internet Explorer Web browser. If you don't want to use Internet Explorer, you can open another FTP program on your computer such as CuteFTP, BulletProof FTP and FileZilla. These types of FTP programs can be downloaded online for free.
Type 'ftp://webpages.charter.net/yourusername' in the address bar of Internet Explorer. If you chose to use a different FTP program, simply type the information into the designated field. You will be prompted to enter your Charter website user name and password.
Notice the split screen that appears after logging in. Each side of the screen contains files. The files on the left side are your computer files. Those on the right are files that are already uploaded to your Charter website.
Click on each computer file that you want to upload to your Charter website. Hold down the 'Ctrl' key to select multiple files.
Hold down your left mouse button as you drag the computer files over to the right-hand side of your screen (the side that contains your current Charter website files). Release your mouse button to 'drop' the files in place. The files will automatically be uploaded to your Charter website server.
In Feburary 2016 28,
Subscribe to:
Comments (Atom)