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UNIX network performance analysis
In a follow-up to an article I did earlier this year on analyzing the structure and layout of your network using ping and other tools, I’ve written another article on similar lines, this time looking at how to monitor and then report on the perfor…
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UNIX network analysis
I have a new tutorial on analyzing networks, in terms of understanding your basic network configuration, the other machines and devices on the network, and the general topology. From the intro: When accessing a new UNIX system, or even understandi…
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Solutions for tracing UNIX applications
Tracing applications are something of a passion for me, especially with the introduction of DTrace in Solaris and Mac OS X. To support that, I have a new tutorial about the different methods available for tracing Unix applications. I tried to conc…
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Synchronizing UNIX files
I have a new article on different ways in which you can synchronize your Unix files. From the intro: There are many tools available that allow you to synchronize files across UNIX directories, but doing it effectively, and securely, takes a little…
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LOSUG Presentation Slides Now Available
My presentation at LOSUG on tuesday went down like a house on fire – I think it would be safe to say that the phrase for the evening was ‘It’s a cache!’. For that to make sense, you need to look at the slides, which are now available here. Attenda…
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Systems Administration Toolkit: Using SNMP data
A new article on consuming and using the SNMP (Simple Network Management Protocol) data that is published and provided by different devices is now available: The Simple Network Management Protocol (SNMP) is built in to many devices, but often the …
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Systems Administration Toolkit: Understanding DNS
A new article on understanding the Domain Name System (DNS) is now available: The Domain Name System (DNS) is the service that converts hostnames and domain details into the IP addresses required for application to communicate. Under UNIX, the pri…
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Systems Administration Toolkit: Log file basics
A new article on some basic log file information and maintenance is available: A typical UNIX or Linux machine creates many log files during the course of its operation. Some of these contain useful information; others can be used to help you with…
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Systems Administration Toolkit: Network scanning
A new article on scanning your network for information, both in a general device/service level and at a more detailed data level is now available. Discover how to scan your network for services and how to regularly monitor your services to keep up…
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Systems Administration Toolkit: Monitor user usage
Do you know what your users are doing? Do you know how frequently people are using your systems? As I explain in the intro: Explore new ways to record UNIX logins and other system activities in a number of different logs, and take advantage of thi…