casual programming and network operations

2002-09-08 Thread Adam Atkinson
Some of my colleagues appear to think that things like perl are so arcane that only I can do them. I have offered to do a _really_ basic introduction to perl (and unix shell stuff) tailored to what my colleagues might possibly use it for, and several people have expressed an interest. It has to

Re: casual programming and network operations

2002-09-08 Thread Andy Dills
On 8 Sep 2002, Adam Atkinson wrote: Does what I propose seem more useful or dangerous? I think my main aim is to show useful non-artificial examples as quickly as possible. Talking about loop structures, scalars vs arrays vs hashes etc. seems like exactly the wrong way to do. It seems to

Re: casual programming and network operations

2002-09-08 Thread batz
Would the Net:: modules on CPAN be usefull to you? I have found that most of the examples in there can give you all you tend to need for day to day network administration. There are tftp snmp, ftp and other modules for doing basic file transfers. They will have to understand things like how

Re: IP address fee??

2002-09-08 Thread bdragon
On Thu, Sep 05, 2002 at 01:36:27PM -0400, Derek Samford wrote: Shane, There is a practice on that (At least here.). Generally we provide a Class C to our customers at no additional charge, but we have Why in this day and age, 9 years after the invention of CIDR, are we

Re: IP address fee??

2002-09-08 Thread bdragon
Shane: I think an important question would be what level of service are they buying. Including 255 address with a T3 would be very reasonable, less so with a T1, not very reasonable with DSL, and ridiculous with a dial-up account. How is usage need in any way related to circuit size?

Re: Baltimore train tunnels (was Re: Vulnerbilities of Interconnection)

2002-09-08 Thread William B. Norton
At 09:47 PM 9/7/2002 -0400, Sean Donelan wrote: Unlike phone calls, TCP traffic doesn't occur in fixed bandwidth increments. TCP traffic, 90% of Internet traffic, is elastic. By design, TCP adjusts the traffic rate to keep the bottleneck congested. As the bottleneck moves, traffic reacts by

Re: Baltimore train tunnels (was Re: Vulnerbilities of Interconnection)

2002-09-08 Thread senthil ayyasamy
Thank Goodness for well-behaved applications, right? ( Misbehaving TCP stacks and UDP-based apps don't obey these back off rules. ) You can see lot of intiatives to make things more TCP friendly to avoid hogging of bandwidth by some selected applications( mostly multimedia based.) More