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Lyssna när som helst, var som helst

Michael W Lucas

FreeBSD is one of the oldest and most featureful open-source Unix-like operating systems. FreeBSD Mastery: Storage Essentials takes you on a deep dive into FreeBSD’s disk management systems.

You’ll learn about:
* identifying your storage hardware
* the Common Access Method
* GEOM–FreeBSD’s powerful and flexible stackable storage system
* GUID Partition Tables, the modern disk partitioning standard
* MBR/disklabel partitioning, used by older and embedded systems
* avoiding common partitioning errors
* aligning partitions to the physical disk, for peak performance
* the high-performance Unix File System
* tuning UFS to fit your environment and load
* Two ways to journal filesystems, and when to use each
* The GELI and GBDE disk encryption systems, and when to use each
* Software-based disk mirroring, striping, RAID-5 and RAID-10.
* Custom FreeBSD installs

And more!

Don’t just configure your storage. Understand it. Get FreeBSD Mastery: Storage Essentials today!

Tilted Windmill Press

IT Mastery

FreeBSD Mastery: Storage Essentials

Stop waiting for the network team!

If basic TCP/IP was hard, network administrators couldn’t do it. Servers give sysadmins a incredible visibility into the network—once they know how to unlock it. 

Most sysadmins don’t need to understand window scaling, or the differences between IPv4 and IPv6 echo requests, or other intricacies of the TCP/IP protocols. You need only enough to deploy your own applications and get easy support from the network team.

This book teaches you:
• How modern networks really work
• The essentials of TCP/IP
• The next-generation protocol, IPv6
• The right tools to diagnose network problems, and how to use them
• Troubleshooting everything from the physical wire to DNS
• How to see the traffic you send and receive
• Connectivity testing
• How to communicate with your network team to quickly resolve problems

A systems administrator doesn’t need to know the innards of TCP/IP, but knowing enough to diagnose your own network issues will transforms a good sysadmin into a great one.

Fungi are among the most networked creatures in the world. If a mushroom can do it, so can you!

Networking for Systems Administrators

Online Backup you can Trust and Verify!

Tarsnap, the secure online backup service for Unix-like systems, raised the bar for online backups. It’s inexpensive. It’s reliable. And you don’t need to trust the Tarsnap service—they can’t access your backups even if they wanted to.

With Tarsnap Mastery you’ll learn to:

• install and manage Tarsnap on Linux, Unix, Windows, and OS X
• fully exploit features like encryption and deduplication
• create and recover archives
• customize backups to precisely your requirements
• passphrase protect keys
• create and manage special-purpose keys
• automatically back up and rotate archives
• understand and resolve performance issues
• quickly restore complete systems

Ditch the tape room. Put your backups online, and know that they’re safe.

Tarsnap Mastery. Because life doesn’t back itself up.

Tarsnap Mastery: Online Backups for the Truly Paranoid

21st-Century Data Storage

ZFS, the fast, flexible, self-healing filesystem, revolutionized data storage. Leveraging ZFS changes everything about managing FreeBSD systems.

With FreeBSD Mastery: ZFS, you’ll learn to:
• understand how your hardware affects ZFS
• arrange your storage for optimal performance
• configure datasets that match your enterprise’s needs
• repair and monitor storage pools
• expand your storage
• use compression to enhance performance
• determine if deduplication is right for your data
• understand how copy-on-write changes everything
• snapshot filesystems
• automatically rotate snapshots
• clone filesystems
• understand how ZFS uses and manages space
• do custom FreeBSD ZFS installs

Whether you’re a long-term FreeBSD administrator or a new user, FreeBSD Mastery: ZFS will help you simplify storage.
Master ZFS with FreeBSD Mastery: ZFS.

FreeBSD Mastery: ZFS

Filesystems for everything! FreeBSD includes many special-purpose filesystems. FreeBSD Mastery: Specialty Filesystems takes you through these filesystems, helping you solve problems you didn’t know you have. These filesystems underlie everything from application servers to jails. You’ll learn to manage:

-removable media

-MSDOS and Linux filesystems

-CD, DVD, and Blu-Ray disks

-devfs

-process filesystems

-the file descriptor filesystem

-the POSIX message queue filesystem

-union mounts

-null mounts

-both memory filesystems, and when to use each

-NFS versions 2, 3, and 4

-iSCSI targets and initiators

-the Common Internet File System

-networked disk redundancy with geom_gate and HAST

-high availability storage with HAST and iSCSI

-NFSv4 Access Control Lists

-User Space Filesystems

-FreeBSD’s Solaris-compatible automounter

System administrators of any expertise level will expand their FreeBSD mastery with FreeBSD Mastery: Specialty Filesystems.

FreeBSD Mastery: Specialty Filesystems

ZFS improves everything about systems administration. Once you peek under the hood, though, ZFS’ bewildering array of knobs and tunables can overwhelm anyone. ZFS experts can make their servers zing—and now you can, too, with FreeBSD Mastery: Advanced ZFS.

This small book teaches you to:

• Use boot environments to make the riskiest sysadmin tasks boring
• Delegate filesystem privileges to users
• Containerize ZFS datasets with jails
• Quickly and efficiently replicate data between machines
• split layers off of mirrors
• optimize ZFS block storage
• handle large storage arrays
• select caching strategies to improve performance
• manage next-generation storage hardware
• identify and remove bottlenecks
• build screaming fast database storage
• dive deep into pools, metaslabs, and more!

Whether you manage a single small server or international datacenters, simplify your storage with FreeBSD Mastery: Advanced ZFS.

FreeBSD Mastery: Advanced ZFS

Pluggable Authentication Modules: Threat or Menace?

PAM is one of the most misunderstood parts of systems administration. Many sysadmins live with authentication problems rather than risk making them worse. PAM’s very nature makes it unlike any other Unix access control system.

If you have PAM misery or PAM mysteries, you need PAM Mastery!

With PAM Mastery, you’ll understand:

• the different versions of PAM
• the intricacies of Linux-PAM and OpenPAM
• how PAM policies make decisions
• how to debug PAM
• the most frequently seen PAM modules
• Linux-PAM extended controls and substacks
• time-based one-time passwords
• using SSH keys for more than SSH
• password quality testing
• policies from CentOS, Debian, and FreeBSD
• and more!

Transform PAM from a headache to an ally with PAM Mastery

PAM Mastery

“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!

Relayd and Httpd Mastery

“One of the best technical writers in the networking and security environments.” – Midwest Book Review

Secure Shell (SSH) lets sysadmins securely manage remote systems. It’s powerful, complicated, and confusing.

Lose the confusion.

SSH Mastery rescues you from sifting through decades of obsolete online tutorials and quickly makes you an SSH journeyman. You’ll learn to

• eliminate passwords
• manage access by users, groups, addresses, and more
• securely move files around your network
• forward graphic displays
• proxy TCP connections
• build SOCKS proxies
• centrally manage and distribute keys and configurations
• use SSH as secure transport for other applications
• build virtual private networks
• create Certificate Authorities for truly large scale deployment

Master Secure Shell with SSH Mastery!

SSH Mastery: OpenSSH, PuTTY, Tunnels and Keys

Sudo: You’re Doing It Wrong

Unix-like operating systems use a rudimentary access control system: the root account can do anything, while other users are peasants with only minimal access. This worked fine in UNIX’s youth, but now that sysadmin responsibilities are spread among many people and applications, many people need 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 secure sudo policy 
*simplify policies with lists and aliases 
*manage shell environments 
*verify system integrity via intrusion detection 
*deploy a single sudo policy across your enterprise
*manage sudo policies via LDAP 
*log and debug sudo 
*record and replay full sudo sessions 
*use authentication systems other than passwords 

Master sudo with Sudo Mastery!

Sudo Mastery

“I’m glad someone’s finally giving ed the attention it deserves.” 
– Ken Thompson, co-creator of Unix

Let me be perfectly clear: ed is the standard Unix text editor. If you don’t know ed, you’re not a real sysadmin.

Forty years after ed’s introduction, internationally acclaimed author Michael W Lucas has finally unlocked the mysteries of ed for everyone. With Ed Mastery, you too can become a proper sysadmin.

Ed Mastery will help you:

• understand buffers and addresses
• insert, remove, and mangle text
• master file management and shell escapes
• comprehend regular expressions, searches, and substitutions
• create high-performance scripts for transforming files

You must be at least this competent to use this computer. Read Ed Mastery today!

Ed Mastery: the Standard Unix Text Editor

SNMP

Simple Network Management Protocol

 

Four lies in one acronym?

It’s baroque. It’s arcane. And it’s everywhere.

 

SNMP is one of those system management skills that people acquire by experience, stumbling through one horrid implementation after another and counting their knowledge by their scars. SNMP Mastery is your guide to the secret landscape of one of computing’s most mysterious tools.

You will understand:

What makes SNMP simple

When to use SNMP, and when not to

How to use SNMP securely

Objects, MIBs, and OIDs

using the net-snmp management toolkit

SNMPv3

efficient queries

debugging

proxies, SMUX, and AgentX

View-based Access Control Model (VACM)

extending the net-snmp agent

logging, traps, and notifications

Stop stumbling through the SNMP minefield. Read SNMP Mastery today!

SNMP Mastery

Transport Layer Security, or TLS, makes ecommerce and online banking possible. It protects your passwords and your privacy. Let’s Encrypt transformed TLS from an expensive tool to a free one. TLS understanding and debugging is an essential sysadmin skill you must have.

TLS Mastery takes you through:

-How TLS works

-What TLS provides, and what it doesn’t

-Wrapping unencrypted connections inside TLS

-Assessing TLS configurations

-The Automated Certificate Management Environment (ACME) protocol

-Using Let’s Encrypt to automatically maintain TLS certificates

-Online Certificate Status Protocol

-Certificate Revocation

-CAA, HSTS, and Certificate Transparency

-Why you shouldn’t run your own CA, and how to do it anyway

-and more!

Stop wandering blindly around TLS. Master the protocol with TLS Mastery!

TLS Mastery (Beastie Edition)

TLS Mastery (Tux Edition)

DNS

The world’s most successful distributed database—and the most naïve.

The Domain Name System is one of the Internet’s oldest protocols, designed for a network without hostile users. Intruders targeting a network start by investigating their DNS. DNS Security Extensions, or DNSSEC, hardens DNS and brings it into the 21st century. Learning DNSSEC required wading through years of obsolete tutorials, dead ends, and inscrutable standards.

Until now.

This new edition of DNSSEC Mastery will have DNS administrators deploying DNSSEC with industry-standard software in hours instead of weeks. You will:

-Understand what DNSSEC provides

-Configure your servers to resist attack

-Verify your environment supports modern DNS

-Debug DNSSEC and the Chain of Trust

-Sign your zones and attach them to the Chain of Trust

-Conceal zone data with NSEC3

-Automate DNSSEC maintenance

-Roll over keys to maintain integrity

-Implement DNSSEC on private networks

-Securely distribute security-critical information via DNS

And more! DNSSEC Mastery transforms DNS from a headache to a solution.

DNSSEC Mastery: 2nd edition

Michael W. Lucas

"Many users assume that their advanced filesystem is better than UFS because they have so many features—snapshots, checksums, compression, sophisticated caching algorithms, and so on—while all UFS has ever done is muck about putting data on disk. But, conversely, UFS users believe their filesystem is better for exactly the same reasons."

—Hitchhikers Guide to OpenBSD

Disk management is the core of system administration. Nobody can tell you how large that database is going to grow or how many files that archive must eventually support, but for everything else there’s OpenBSD Mastery: Filesystems. This guide takes you through the latest in OpenBSD storage management, including:

* OpenBSD’s cross-platform storage stack

* MBR, GPT, and disklabel partitions

* The Unix File System

* Growing, removing, and repairing filesystems

* Memory file systems

* The Buffer Cache

* Why you need swap, and how to live with it

* Coping with FAT, NTFS, EXT, and more

* The Network File System

* iSCSI

* Software RAID

* Encrypted filesystems

* Encrypted installs

And more! Partition yourself for success and grab OpenBSD Mastery: Filesystems now.

IT Mastery - Bokserien

IT Mastery - Bokserien

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