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2answers
287 views

NAT Gateway - Maximum connection limit

I know just enough networking to be dangerous. The nitty gritty low level details of NAT are not something I am particularly knowledgeable about. I accidentally found myself in a discussion earlier ...
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2answers
336 views

dhcpd pool exhaustion - What's the result?

I have a DHCP server that serves leases to several houndred, maybe up to a thousand, different clients on an average day. The pool consists of 242 IPs, and due to the highly dynamic nature of the ...
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1answer
80 views

Are there any other causes of this error that are NOT related to initial setup?

I'm trying to diagnose an issue at a customer site. They are receiving the following error: A network-related or instance-specific error occurred while establishing a connection to SQL Server ...
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4answers
3k views

Advantages of IPv4 over IPv6

In theory, how IPv4 is better than IPv6? I need only advantages of IPv4 for study purposes. In another words - what are the pros of IPv4?
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3answers
259 views

What is a correct monitoring strategy for network services?

Take for example a host which monitored with nagios and check_mk. Now there are http and ssh servers running on it. What is the best monitoring strategy: Monitor that sshd & apache process are ...
7
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1answer
717 views

What is theoretical maximum of TCP traffic over GigaEthernet?

What is theoretical maximum of TCP traffic over GigaEthernet ?
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4answers
345 views

Release Management for Infrastructure

Does anyone use release management principals for system administration of infrastructure in the same way it is done for software development? I have been in the system administration field for more ...
2
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2answers
157 views

HFS theory: What else is there to a system other than a root filesystem?

I'm grokking the HFS linux standard documentation, and I can't move beyond this concept. The concept I don't get can be demonstrated by the following quote: The contents of the root filesystem ...
7
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13answers
13k views

Whats the average lifespan of a server?

i'd really like to know what the lifespan of a server is, or could be. Is there something like lifespan in the world of PCs at all? Lets assume it runs 24/7, how many hours/days/years/etc could it be ...
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3answers
3k views

Troubleshooting a network interruption

My company is pretty much entirely a Windows shop: Microsoft firewall, all Windows servers, etc etc. The hardware is mostly Cisco or Cisco-like. For about three weeks, we've experienced "random" ...
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3answers
269 views

What if a computer with Ethernet

I'm just revising for an exam on Networks and Data Communications, and there's one thing I don't get about CSMA/CD and Ethernet. It's supposed to be fairly stable, for instance if a computer drops out ...
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2answers
89 views

Transaction Log a part of the server or database?

In practice (and in general) is a transaction log a part of the database server or is it a part of the database itself? I've not been able to locate information in this domain anywhere. I need the ...
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2answers
117 views

Radiation hardend systems on the cheap

Aside form the "buy really costly NASA stuff" solution, what can be done about running a system in high radiation environments like space? (This is mostly a thought experiment.) Known Issues ...