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network-diagnostic-tips [2016/07/17 12:46] serbizadmin |
network-diagnostic-tips [2020/06/13 15:10] |
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- | ====== Network Diagnostic Tips ====== | ||
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- | To just say that a site is inaccessible is hardly helpful to its administrators. Please help us address the issue head on by using the following tips: | ||
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- | **1. Run a traceroute from your commandline and from an independent site.**\\ | ||
- | From the command line of your computer, run on **Windows** \\ | ||
- | tracert myportal.upou.edu.ph | ||
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- | On **Mac** or **Linux**\\ | ||
- | traceroute myportal.upou.edu.ph | ||
- | {{ :: | ||
- | \\ | ||
- | Please send the whole result to [email protected]\\ | ||
- | \\ | ||
- | From an independent diagnostic site like [[http:// | ||
- | {{ :: | ||
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- | \\ | ||
- | In both cases, the traceroute instances suggest that MyPortal is reachable. In the event that your local traceroute fails but the one from third-party works, please report the issue to your local Internet service provider (ISP).\\ | ||
- | \\ | ||
- | **2. Change your computer' | ||
- | It's possible that your local ISP's DNS (Domain Name System) is acting erratically. Change it to some reliable DNS like Google' | ||
- | {{ :: | ||
- | DNS is like the phone book of the Internet. It keeps track of website names like myportal.upou.edu.ph.\\ | ||
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- | **3. Help trace possible packet loss with MTR.**\\ | ||
- | Using an admin or root account, run this from the command line\\ | ||
- | mtr myportal.upou.edu.ph | ||
- | That should display something like this: | ||
- | {{ :: | ||
- | Send your own results to [email protected]\\ | ||
- | \\ | ||
- | **4. Test your site's DNS.**\\ | ||
- | Diagnostic sites like [[http:// | ||
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- | ---- | ||