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PKI Implementation and Infrastructures
| Author | : Julian Ashbourn |
| Publisher | : CRC Press |
| Total Pages | : 270 |
| Release | : 2023-03-15 |
| Genre | : Computers |
| ISBN | : 100084496X |
The concept of a PKI (public key infrastructure) has been around for decades, but it is one strand of IT which has taken an extraordinarily long time to come to fruition within the mainstream. This is mostly because implementing a PKI is time consuming and difficult. Maintaining a PKI is equally time consuming and even more difficult within the real world of mergers and acquisitions against a backdrop of ever-changing technology. Many organisations simply give up and hand everything over to a third party who promises to manage everything on their behalf. This is generally not a good idea and simply delays the inevitability of failures and misunderstood complexity. This book explores all the aspects of implementing and maintaining a PKI that the other books on the subject seem to miss. It reflects decades of hard-won experience, not only in PKI, not only in IT, not only in electronics, but in business, government agencies and academia alike. The book also explores the existence of a PKI alongside other technologies, such as biometrics, and against an ever-changing world of development methodologies. This last point is particularly relevant at this time as we are in the middle of a quiet, but all encompassing revolution in this respect. Consequently, this is the one book on PKI that you have to have on your shelf, whether you be a company director, IT manager, government minister or teacher of IT. It is the book which fills in all the gaps left in the literature and treads paths which others fear to tread. You will enjoy it enormously if you are from an IT background.
CompTIA Linux+ XK0-005 Reference Guide
| Author | : Philip Inshanally |
| Publisher | : BPB Publications |
| Total Pages | : 345 |
| Release | : 2023-09-06 |
| Genre | : Computers |
| ISBN | : 9355515731 |
A must-have resource for anyone who wants to pass the CompTIA Linux+ XK0-005 certification exam KEY FEATURES ● Learn the essential skills for troubleshooting Linux systems. ● A study guide that covers all the essential topics in the CompTIA Linux+ XK0-005 certification exam syllabus. ● Challenge yourself with test-like questions to improve your chances of passing the exam. DESCRIPTION The CompTIA Linux+ certification is a valuable credential for anyone who wants to work with Linux systems. It demonstrates your skills and knowledge of Linux administration, which is essential for getting a job or advancing your career. This comprehensive guide is designed to help you prepare for and pass the CompTIA Linux+ XK0-005 certification exam. It covers all the essential topics you need to know, including how to configure, manage, operate, and troubleshoot Linux server environments. It also includes practice test questions to help you assess your knowledge and readiness for the exam. By the end of this book, you will be confident and prepared to take the CompTIA Linux+ certification exam. WHAT YOU WILL LEARN ● Learn how to configure network settings, such as IP addresses, DNS servers, and hostnames. ● Get to know the Grand Unified Bootloader (GRUB 2), which is used to boot Linux systems. ● Learn how to manage processes in Linux. ● Learn how to create and run a shell script in Linux. ● Explore and work with configuration management tools like YAML, JSON, and Ansible. WHO THIS BOOK IS FOR Whether you are a beginner or an experienced Linux user, this book is the perfect resource for you to pass the CompTIA Linux+ XK0-005 exam and become a certified Linux administrator. TABLE OF CONTENTS 1. Introduction to Linux Environment 2. Files, Directories, and Storage 3. Processes, Services and Network Configuration 4. Managing Modules and Software 5. User and Password Management 6. Firewall, Remote Access and SELinux 7. Shell Scripting and Containers 8. Configuration Management with YAML, JSON and Ansible 9. Troubleshooting Network and System Issues 10. Mock Exams
Cybersecurity for Small Networks
| Author | : Seth Enoka |
| Publisher | : No Starch Press |
| Total Pages | : 225 |
| Release | : 2022-12-06 |
| Genre | : Computers |
| ISBN | : 1718501498 |
A guide to implementing DIY security solutions and readily available technologies to protect home and small-office networks from attack. This book is an easy-to-follow series of tutorials that will lead readers through different facets of protecting household or small-business networks from cyber attacks. You’ll learn how to use pfSense to build a firewall, lock down wireless, segment a network into protected zones, configure a VPN (virtual private network) to hide and encrypt network traffic and communications, set up proxies to speed up network performance and hide the source of traffic, block ads, install and configure an antivirus, back up your data securely, and even how to monitor your network for unauthorized activity and alert you to intrusion.
Ubuntu Server for Small Business
| Author | : Stefano Giro |
| Publisher | : Lulu.com |
| Total Pages | : 245 |
| Release | : 2011-03-14 |
| Genre | : Computers |
| ISBN | : 1447517199 |
The situation of a school or a small or very small business where the desire to save money without sacrificing security or efficiency is a primary need, is the perfect environment for solutions based on GNU Linux, an operating system very widespread and with proven efficiency, security and scalability. Learn how to use Ubuntu to create and administer a powerful, modern and complete system suitable to school and to small and very small business.
Network Performance and Security
| Author | : Chris Chapman |
| Publisher | : Syngress |
| Total Pages | : 382 |
| Release | : 2016-03-10 |
| Genre | : Computers |
| ISBN | : 012803601X |
Network Performance Security: Testing and Analyzing Using Open Source and Low-Cost Tools gives mid-level IT engineers the practical tips and tricks they need to use the best open source or low cost tools available to harden their IT infrastructure. The book details how to use the tools and how to interpret them. Network Performance Security: Testing and Analyzing Using Open Source and Low-Cost Tools begins with an overview of best practices for testing security and performance across devices and the network. It then shows how to document assets—such as servers, switches, hypervisor hosts, routers, and firewalls—using publicly available tools for network inventory. The book explores security zoning the network, with an emphasis on isolated entry points for various classes of access. It shows how to use open source tools to test network configurations for malware attacks, DDoS, botnet, rootkit and worm attacks, and concludes with tactics on how to prepare and execute a mediation schedule of the who, what, where, when, and how, when an attack hits. Network security is a requirement for any modern IT infrastructure. Using Network Performance Security: Testing and Analyzing Using Open Source and Low-Cost Tools makes the network stronger by using a layered approach of practical advice and good testing practices. - Offers coherent, consistent guidance for those tasked with securing the network within an organization and ensuring that it is appropriately tested - Focuses on practical, real world implementation and testing - Employs a vetted "security testing by example" style to demonstrate best practices and minimize false positive testing - Gives practical advice for securing BYOD devices on the network, how to test and defend against internal threats, and how to continuously validate a firewall device, software, and configuration - Provides analysis in addition to step by step methodologies
MySQL High Availability
| Author | : Charles Bell |
| Publisher | : "O'Reilly Media, Inc." |
| Total Pages | : 948 |
| Release | : 2014-04-10 |
| Genre | : Computers |
| ISBN | : 1449339565 |
Server bottlenecks and failures are a fact of life in any database deployment, but they don’t have to bring everything to a halt. This practical book explains replication, cluster, and monitoring features that can help protect your MySQL system from outages, whether it’s running on hardware, virtual machines, or in the cloud. Written by engineers who designed many of the tools covered, this book reveals undocumented or hard-to-find aspects of MySQL reliability and high availability—knowledge that’s essential for any organization using this database system. This second edition describes extensive changes to MySQL tools. Versions up to 5.5 are covered, along with several 5.6 features. Learn replication fundamentals, including use of the binary log and MySQL Replicant Library Handle failing components through redundancy Scale out to manage read-load increases, and use data sharding to handle large databases and write-load increases Store and replicate data on individual nodes with MySQL Cluster Monitor database activity and performance, and major operating system parameters Keep track of masters and slaves, and deal with failures and restarts, corruption, and other incidents Examine tools including MySQL Enterprise Monitor, MySQL Utilities, and GTIDs
Mastering Proxmox
| Author | : Wasim Ahmed |
| Publisher | : Packt Publishing Ltd |
| Total Pages | : 482 |
| Release | : 2017-11-16 |
| Genre | : Computers |
| ISBN | : 1788392434 |
Discover real world scenarios for Proxmox troubleshooting and become an expert cloud builder About This Book Formulate Proxmox-based solutions and set up virtual machines of any size while gaining expertise even on the most complex multi-cluster setups Master the skills needed to analyze, monitor, and troubleshoot real-world virtual environments This is the most up-to-date title on mastering Proxmox, with examples based on the new Linux Kernel 4.10.15 and Debian Stretch (9.x) Who This Book Is For This book is for Linux and system administrators and professionals working in IT teams who would like to design and implement an enterprise-quality virtualized environment using Proxmox. Some knowledge of networking and virtualization concepts is assumed. What You Will Learn Install basic Proxmox VE nodes and get to know the Proxmox GUI Get to know Proxmox's internal structure and mechanics Create and manage KVM or LXC-based virtual machines Understand advanced virtual networks Configure high availability Proxmox nodes Integrate Ceph big data storage with the Proxmox hypervisor Plan a large virtual environment for cloud-based services Discover real-world scenarios for Proxmox troubleshooting In Detail Proxmox is an open source server virtualization solution that has enterprise-class features for managing virtual machines, for storage, and to virtualize both Linux and Windows application workloads. You'll begin with a refresher on the advanced installation features and the Proxmox GUI to familiarize yourself with the Proxmox VE hypervisor. Then, you'll move on to explore Proxmox under the hood, focusing on storage systems, such as Ceph, used with Proxmox. Moving on, you'll learn to manage KVM virtual machines, deploy Linux containers fast, and see how networking is handled in Proxmox. You'll also learn how to protect a cluster or a VM with a firewall and explore the new high availability features introduced in Proxmox VE 5.0. Next, you'll dive deeper into the backup/restore strategy and see how to properly update and upgrade a Proxmox node. Later, you'll learn how to monitor a Proxmox cluster and all of its components using Zabbix. Finally, you'll discover how to recover Promox from disaster strikes through some real-world examples. By the end of the book, you'll be an expert at making Proxmox work in production environments with minimal downtime. Style and approach This book walks you through every aspect of virtualization using Proxmox using a practical, scenario-based approach that features best practices and all the weaponry you need to succeed when building virtual environments with Proxmox 5.0.
Red Hat® Certified Technician & Engineer (RHCT and RHCE) Training Guide and Administrator's Reference
| Author | : Asghar Ghori |
| Publisher | : Endeavor Technologies Inc. |
| Total Pages | : 746 |
| Release | : 2009-08-10 |
| Genre | : Computers |
| ISBN | : 1615844309 |
This book is based on Red Hat® Enterprise Linux 5 (RHEL 5) and is intended for individuals who plan to take the new Red Hat® Certified Technician (RH202) and/or Red Hat® Certified Engineer (RH302) exams and pass them, want to use it as a quick on-the-job resource or like to learn RHEL from the beginning in an easy-to-understand way. The book has 31 chapters and facilitates readers to grasp concepts, understand implementation procedures, learn command syntax, configuration files and daemons involved, and comprehend troubleshooting. The chapters are divided into four areas: Linux Essentials, RHEL System Administration, RHEL Network and Security Administration, and RHEL Troubleshooting. 01. Linux Essentials (Chapters 1 to 7) covers the basics of Linux. Information provided includes general Linux concepts, basic commands, file manipulation and file security techniques, text file editors, shell features, basic shell and awk programming and other essential topics. These chapters are good for gaining an overall understanding of Linux and cover common skills useful for both exams. 02. RHEL System Administration (Chapters 8 to 19) covers system administration concepts and topics including hardware management, local installation, X Window and desktop managers, software and user/group account administration, disk partitioning using standard, RAID and LVM, file system and swap management, system shutdown and boot procedures, kernel management, backup, restore and compression functions, print services administration, and automation and system logging. These chapters cover objectives outlined for the RH202 exam. 03. RHEL Network and Security Administration (Chapters 20 to 30) covers network and security administration concepts and topics such as OSI and TCP/IP reference models, subnetting and IP aliasing, network interface administration, routing, basic network testing and troubleshooting tools, naming services (DNS, NIS, LDAP) and DHCP; Internet services and electronic mail management, time synchronization with NTP, resource sharing with NFS, AutoFS and Samba, network-based and hands-free automated installation, Apache web server and Squid caching/proxy server, secure shell, PAM, TCP Wrappers, IPTables, NATting, SELinux and recommendations for system hardening. These chapters cover objectives set for the RH302 exam. 04. RHEL Troubleshooting (Chapter 31) covers a number of sample system, network and security troubleshooting scenarios. This chapter covers objectives related to diagnoses and troubleshooting for both exams. The book covers ALL official exam objectives and includes several exercises for exam practice. This book is not a replacement for RHCT®/RHCE® training courses offered by Red Hat, Inc., but may be used to prepare for both the exams. The information contained in this book is not endorsed by Red Hat, Inc. Good Luck on the exams .........
Linux Networking Cookbook
| Author | : Gregory Boyce |
| Publisher | : Packt Publishing Ltd |
| Total Pages | : 152 |
| Release | : 2016-06-28 |
| Genre | : Computers |
| ISBN | : 1785285971 |
Over 40 recipes to help you set up and configure Linux networks About This Book Move beyond the basics of how a Linux machine works and gain a better understanding of Linux networks and their configuration Impress your peers by setting up and configuring a Linux server and its various network elements like a pro This is a hands-on solution guide to building, maintaining, and securing a network using Linux Who This Book Is For This book is targeted at Linux systems administrators who have a good basic understanding and some prior experience of how a Linux machine operates, but want to better understand how various network services function, how to set them up, and how to secure them. You should be familiar with how to set up a Linux server and how to install additional software on them. What You Will Learn Route an IPv6 netblock to your local network Modify your named instance to support setting hostnames for your IPv6 addresses Use SSH for remote console access Configure NGINX with TLS Secure XMPP with TLS Leverage iptables6 to firewall your IPv6 traffic Configure Samba as an Active Directory compatible directory service In Detail Linux can be configured as a networked workstation, a DNS server, a mail server, a firewall, a gateway router, and many other things. These are all part of administration tasks, hence network administration is one of the main tasks of Linux system administration. By knowing how to configure system network interfaces in a reliable and optimal manner, Linux administrators can deploy and configure several network services including file, web, mail, and servers while working in large enterprise environments. Starting with a simple Linux router that passes traffic between two private networks, you will see how to enable NAT on the router in order to allow Internet access from the network, and will also enable DHCP on the network to ease configuration of client systems. You will then move on to configuring your own DNS server on your local network using bind9 and tying it into your DHCP server to allow automatic configuration of local hostnames. You will then future enable your network by setting up IPv6 via tunnel providers. Moving on, we'll configure Samba to centralize authentication for your network services; we will also configure Linux client to leverage it for authentication, and set up a RADIUS server that uses the directory server for authentication. Toward the end, you will have a network with a number of services running on it, and will implement monitoring in order to detect problems as they occur. Style and approach This book is packed with practical recipes and a task-based approach that will walk you through building, maintaining, and securing a computer network using Linux.
