Bash: the free rewrite of the Bourne shell
Bash 2.05a is a free rewrite of the Bourne shell that extends POSIX.2. Writing portable scripts means choosing when to lean on the extensions and when to stop at the standard.
Read moreInfrastructure
Servers, containers, networks, kernel, observability.
Jabber: federation and gateways in a field of closed protocols
Jabber routes messages and presence between independent servers via dialback, and bridges the closed networks with transports. Technical notes on a streaming-XML protocol in 2001.
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Apache 1.3: the prefork model and the governance that holds it up
In February 2001 Apache serves nearly 60% of the sites Netcraft found. How the 1.3 prefork works, what the Multi-Processing Modules in the 2.0 development tree change, and why the licence and the governance weigh as much as the code.
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A network server for the small business: integration is the hard part
The network services a small office LAN needs already exist as mature open-source projects. The hard part is making them coexist on one administrable machine.
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Linux 2.2: a monolithic kernel with loadable modules
The 2.2 kernel keeps everything in kernel space yet loads and unloads code while the machine is running — a middle way relative to the 1992 microkernel argument.
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Three networks over one radio link: how a Linux node holds together AX.25, NET/ROM, ROSE and FlexNet
In amateur packet radio the AX.25 link layer carries no routing at all: incompatible network protocols live on top of it. Technical notes on how a Linux node terminates and translates between them on a single machine.
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Packet radio on Linux: bringing AX.25 and NET/ROM into the free kernel at the ARI section in Pisa
Bringing amateur packet radio onto Linux means moving the AX.25 and NET/ROM stack into a kernel whose code you can read and fix. An account of the work done at the ARI section in Pisa: patches to the kernel, libraries and tools, the IP-over-radio bridge on the 44/8 network and an IP-IP tunnel to Tampa.
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