90 lines
3.8 KiB
HTML
90 lines
3.8 KiB
HTML
<HTML>
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<TITLE>The Big Brother Unix Network Monitor</TITLE>
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<BODY bgcolor="#000000" background="./gx/sittler/bkg-purple.gif" link="#FFFFFF"
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vlink="#FF0000" text="#00FFFF">
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<BODY>
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<IMG SRC="./gx/sittler/bb.gif" ALIGN=RIGHT>
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<H1>Big Brother - Help</H1>
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<H3>A Web-based Unix Network Monitoring <BR>
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and Notification System</H3>
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<H4>Version 1.00 - 31 December 1996</H4>
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<P>
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<H2><I>Order of severity</I></H2>
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<B>
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<I>
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<IMG SRC="./gx/sittler/red.gif"> Serious Trouble<BR>
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<IMG SRC="./gx/sittler/purple.gif"> No report lately<BR>
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<IMG SRC="./gx/sittler/yellow.gif"> May need attention<BR>
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<IMG SRC="./gx/sittler/green.gif"> All is well<BR>
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</I>
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<P>
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All connections are checked every 5 minutes<BR>
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<HR>
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<CENTER><H2><I>Pager Codes</I></H2></CENTER>
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The administrator will be paged when conditions merit. The numeric message
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is formatted as follows: [3 DIGIT CODE] [IP-ADDRESS]
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<P>
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<UL>
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<LI>100 - Disk Error. Disk is over 95% full...
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<LI>200 - CPU Error. CPU load average is unacceptably high.
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<LI>300 - Process Error. An important processes has died.
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<LI>400 - Message file contains a serious error.
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<LI>500 - Network error, can't connect to that IP address.
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<LI>600 - Web server HTTP error - server is down.
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<LI>610 - Ftp server error - server is down.
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<LI>620 - POP3 server error - Post Office is down.
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<LI>630 - SMTP MTA error - SMTP Mail Host is down.
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<LI>911 - User Page. Message is phone number to call back.
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</UL>
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<HR>
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<CENTER><H2><I>Severe Conditions</I></H2></CENTER>
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Most severe conditions result in the administrator being paged. These include loss of
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network connectivity, loss of HTTP access, and disk conditions over 95% full, since these
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can result in a system hang. Furthermore, any "NOTICE" messages in
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the message file causes a page since this may signal a disk fault.
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<P>
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Under these circumstances, the screen should turn red. Click on the corresponding red dot
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for additional information about the condition.
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<P>
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If a severe situation is occurring that is not being noticed by Big Brother, use the PAGE
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button on the main screen to page the administrator manually.<BR><BR>
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<HR>
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<CENTER><H2><I>Warning Conditions</I></H2></CENTER>
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These include HTTP server errors, disks 90-94% full, the death of important
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processes, and "WARNING" messages in the system logs.
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<P>
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The screen should turn yellow if this is the most severe situation at the time.
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Click on the corresponding yellow dot for additional information, and page
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the administrator manually if necessary.<BR><BR>
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<HR>
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<CENTER><H2><I>No Report Warnings</I></H2></CENTER>
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Each report is checked for freshness. If a any report is more than 30 minutes old, it is marked
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with a blue dot, and the screen turns blue, assuming that it is the most serious situation
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at the time. <P>
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<P>
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These may be the result of heavily loaded systems, but may also indicate a more
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serious loss of communication within the Big Brother system itself.<BR><BR>
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<HR>
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<CENTER><H2><I>System Information</I></H2></CENTER>
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Click on any server name for additional details about the machine. Information
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about all components are available, including serial numbers, partition sizes,
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SCSI addresses, and the physical locations of the devices. This
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information
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lives in the notes directory.
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<P>
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<HR>
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<CENTER><H2><I>General Information</I></H2></CENTER>
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The current status of any individual component is always available by clicking the appropriate
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dot in the display matrix. You may have to hit <B><I>Reload</I></B> to get the most recent entry.
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<P>
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Occasionally the screen changes color for CPU or HTTP warnings. These can usually be disregarded
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since Big Brother has been instructed to be <B>very</B> sensitive during this initial test. Similarly, internet connections may turn yellow when the network
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is heavily loaded. Although it should be checked out, this is usually not a
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problem unless the whole Internet section goes yellow.
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<P>
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</CENTER>
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</BODY>
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</HTML>
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