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Network Flow Analysis
  • Language: en
  • Pages: 224

Network Flow Analysis

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 netwo...

Absolute FreeBSD, 2nd Edition
  • Language: en
  • Pages: 744

Absolute FreeBSD, 2nd Edition

FreeBSD—the powerful, flexible, and free Unix-like operating system—is the preferred server for many enterprises. But it can be even trickier to use than either Unix or Linux, and harder still to master. Absolute FreeBSD, 2nd Edition is your complete guide to FreeBSD, written by FreeBSD committer Michael W. Lucas. Lucas considers this completely revised and rewritten second edition of his landmark work to be his best work ever; a true product of his love for FreeBSD and the support of the FreeBSD community. Absolute FreeBSD, 2nd Edition covers installation, networking, security, network services, system performance, kernel tweaking, filesystems, SMP, upgrading, crash debugging, and much ...

Absolute OpenBSD, 2nd Edition
  • Language: en
  • Pages: 536

Absolute OpenBSD, 2nd Edition

OpenBSD is widely used as the basis for critical DNS servers, routers, firewalls, and more. With this book, you'll learn the intricacies of the platform, the technical details behind certain design decisions, and best practices. This edition has been 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 also 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; and customize the installation and upgrade processes for your network and hardware, or build a custom OpenBSD release.

SSH Mastery
  • Language: en
  • Pages: 242

SSH Mastery

  • Type: Book
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  • Published: 2018-02-06
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  • Publisher: Unknown

The best-selling sysadmin text, now revised and updated! SSH Mastery is the industry standard work on using Secure Shell on Unix-like systems

Absolute FreeBSD, 3rd Edition
  • Language: en
  • Pages: 704

Absolute FreeBSD, 3rd Edition

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. FreeBSD is the muscle behind companies like Netflix and EMC. Any place where someone does heavy lifting on the Internet, you'll find FreeBSD. This newly revised edition of Absolute FreeBSD brings FreeBSD's strengths to bear on your problems and covers FreeBSD's newest features, all in the inimitable style that has made author Michael W. Lucas' system administration books so popular. Any computer system is only as good as the system adminis...

Sudo Mastery
  • Language: en
  • Pages: 144

Sudo Mastery

  • Type: Book
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  • Published: 2013-11-09
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  • Publisher: CreateSpace

Unix-like operating systems have a primitive access control system. The root account can do anything. Other users are peasants with only minimal system access. This worked fine in UNIX's youth, but today, system administration responsibilities are spread among many people and applications. Each person needs a tiny slice of root's power. Sudo lets you divide root's monolithic power between the people who need it, with accountability and auditability. Sudo Mastery will teach you to: * design a sudo policy rather than slap rules together * simplify policies with lists and aliases * use non-Unix information sources in policies * configure alternate sudo policies * manage shell environments * verify system integrity and perform intrusion detection * have a common sudo policy across your server farm * manage sudo policies via LDAP * log and debug sudo * log and replay full sudo sessions * use authentication systems other than passwords While many people use sudo, most use only a small part of it's features. Chances are, you're doing it wrong. Master sudo with Sudo Mastery.

Absolute FreeBSD
  • Language: en
  • Pages: 709

Absolute FreeBSD

  • Type: Book
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  • Published: 2008
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  • Publisher: Unknown

Absolute FreeBSD, 2nd Edition covers installation, networking, security, network services, system performance, kernel tweaking, filesystems, SMP, upgrading, crash debugging, and much more, including coverage of 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. - Publisher.

Freebsd Mastery
  • Language: en
  • Pages: 234

Freebsd Mastery

  • Type: Book
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  • Published: 2015-05-21
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  • Publisher: Unknown

The best-selling guide on managing the revolutionary ZFS file system, using FreeBSD as a reference platform.

Absolute OpenBSD
  • Language: en
  • Pages: 489

Absolute OpenBSD

Explains how to use the powerful and complex computer operating system, discussing topics including installation, security features, packet filters, encryption, and system upgrades.

Relayd and Httpd Mastery
  • Language: en
  • Pages: 232

Relayd and Httpd Mastery

  • Type: Book
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  • Published: 2017-05-17
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  • Publisher: Unknown

"I think we're gonna need a bigger web server." OpenBSD has a solid reputation for security and stability. It's well known for the OpenSMTPd mail server, the LibreSSL cryptography library, and the PF packet filter. But nobody ever talks about the load balancer, or the web server. Until now. The httpd web server provides a fast, stable, secure environment for your web applications. The relayd load balancer lets you distribute Internet application load across multiple hosts. Between the two, you can slash hundreds of thousands of dollars off the cost of building, deploying, and managing applications. With Httpd and Relayd Mastery you'll learn how to: -set up web sites -configure software to run in a chroot -run dozens or hundreds of sites on one host -dynamically reconfigure sites with Lua patterns -manage site logs -maintain free, globally-valid SSL certificates -improve performance with SSL stapling -install and maintain two-server clusters -distribute traffic between any number of hosts -stop worrying about old SSL versions and bad crypto algorithms Slash the amount of time you spend futzing with web servers. Get Httpd and Relayd Mastery today!