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Nagios
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It’s ten o’clock on Monday morning. The boss of the branch office is in a rage. He’s been waiting for hours for an important e-mail, and it still hasn’t arrived. It can only be the fault of the mail server; it’s probably hung yet again. But a quick check of the computer shows that no mails have got stuck in the queue there,and there’snomentioneitherinthelogfilethatamailfromthesenderinquestionhas arrived. So where’s the problem? The central mail server of the company doesn’t respond to aping. That’s probably the root of the problem. But the IT department at the company head office absolutely insists that it is not to blame.It also cannot ping the mail node of the branch office, but it maintains that the network at the head office is running smoothly, so the problem mustlie with the network at the branch office. The search for the error continues... The humiliating result: the VPN connection to head office was down,and although the ISDN backup connection was working, no route to the head office(and thus to the central mail server) was defined in the backup router.A globally operating IT service provider was responsible for the network connections (VPN and ISDN) between branch and head office, for whom something like this“just doesn’t hap- pen”.The end result: many hours spent searching for the err or,an irritated boss (the meeting for which the e-mail was urgently required has long since finished), and a sweating admin.
Wolfgang Barth - Personal Name
1-59327-070-4
NONE
Information Technology
English
2005
1-463
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