Michael W Lucas – författare

Absolute FreeBSD is your complete guide to FreeBSD, the powerful UNIX-like operating system that's supported modern servers, desktops, and platforms for years. In this completely revised third edition, FreeBSD committer Michael W. Lucas will teach you how to install, configure, and manage FreeBSD-based systems. You'll find added coverage of IPv6 and modern disks, redesigned jail and packaging systems, modern disks, and virtualisation, and learn about two FreeBSD 11.x transformative features designed for cloud-based management, libxo and UCL.

Cisco routers and switches are the cornerstones of many networks. But when things break, repairs can intimidate even the most competent administrator. Luckily, just knowing the "in case of emergency" basics will take you far.Just like the original, this second edition of the highly acclaimed Cisco Routers for the Desperate is written for the administrator in crisis mode. Updated to cover switches and the latest Cisco terminology, with a tighter focus on the needs of the small network administrator, this second edition gives you what you need to know to provide reliable network services and fix problems fast. You''ll find coverage of:–Installation—how to get your router and network connections up and running right the first time–Troubleshooting routers and switches, so that you can determine whether your hardware or the Internet is broken–Security concerns, like how to keep your network equipment safe from hackers and install a private network between two offices–How to implement basic network redundancy to reduce the risk of network downtimeCisco Routers for the Desperate, 2nd Edition is designed to be read once and left alone until something breaks. When it does, you''ll have everything you need to know in one easy-to-follow guidebook.

You know that servers have log files and performance measuring tools and that traditional network devices have LEDs that blink when a port does something. You may have tools that tell you how busy an interface is, but mostly a network device is a black box. Network Flow Analysis opens that black box, demonstrating how to use industry-standard software and your existing hardware to assess, analyze, and debug your network.Unlike packet sniffers that require you to reproduce network problems in order to analyze them, flow analysis lets you turn back time as you analyze your network. You''ll learn how to use open source software to build a flow-based network awareness system and how to use network analysis and auditing to address problems and improve network reliability. You''ll also learn how to use a flow analysis system; collect flow records; view, filter, and report flows; present flow records graphically; and use flow records to proactively improve your network. Network Flow Analysis will show you how to:–Identify network, server, router, and firewall problems before they become critical–Find defective and misconfigured software–Quickly find virus-spewing machines, even if they’re on a different continent–Determine whether your problem stems from the network or a server–Automatically graph the most useful dataAnd much more. Stop asking your users to reproduce problems. Network Flow Analysis gives you the tools and real-world examples you need to effectively analyze your network flow data. Now you can determine what the network problem is long before your customers report it, and you can make that silly phone stop ringing.

OpenBSD, the elegant, highly secure Unix-like operating system, is widely used as the basis for critical DNS servers, routers, firewalls, and more. This long-awaited second edition of Absolute OpenBSD maintains author Michael Lucas''s trademark straightforward and practical approach that readers have enjoyed for years. You''ll learn the intricacies of the platform, the technical details behind certain design decisions, and best practices, with bits of humor sprinkled throughout. This edition has been completely updated for OpenBSD 5.3, including new coverage of OpenBSD''s boot system, security features like W^X and ProPolice, and advanced networking techniques.You''ll learn how to: –Manage network traffic with VLANs, trunks, IPv6, and the PF packet filter–Make software management quick and effective using the ports and packages system–Give users only the access they need with groups, sudo, and chroots–Configure OpenBSD''s secure implementations of SNMP, DHCP, NTP, hardware sensors, and more–Customize the installation and upgrade processes for your network and hardware, or build a custom OpenBSD releaseWhether you''re a new user looking for a complete introduction to OpenBSD or an experienced sysadmin looking for a refresher, Absolute OpenBSD, 2nd Edition will give you everything you need to master the intricacies of the world''s most secure operating system.

This updated edition of Michael W. Lucas'' definitive volume on FreeBSD-based systems adds coverage of modern disks, the ZFS filesystem IPv6, redesigned jail and packaging systems, and virtualization, among dozens of new features added in the last 10 years.Absolute FreeBSD is your complete guide to FreeBSD, the powerful UNIX-like operating system that''s supported modern servers, desktops, and platforms for years. In this completely revised third edition, FreeBSD committer Michael W. Lucas will teach you how to install, configure, and manage FreeBSD-based systems. You''ll find added coverage of IPv6 and modern disks, redesigned jail and packaging systems, modern disks, and virtualization, and learn about two FreeBSD 11.x transformative features designed for cloud-based management, libxo and UCL.Absolute FreeBSD will show you how to:-Use advanced security features like packet filtering, virtual machines, and host-based intrusion detection-Build custom live FreeBSD CDs and bootable flash-Manage network services and filesystems-Use DNS and set up email, IMAP, web, and FTP services for both servers and clients-Monitor your system with performance-testing and troubleshooting tools-Run diskless systems-Manage schedulers, remap shared libraries, and optimize your system for your hardware and your workload-Build custom network appliances with embedded FreeBSD-Implement redundant disks, even without special hardware-Integrate FreeBSD-specific SNMP into your network management system.If you''ve been using FreeBSD for years or are looking to add it your repertoire, Absolute FreeBSD will show you how your systems work and how to make them work better.