Search icon Close icon
Search icon
Subscription
0
Cart icon
Close icon
You have no products in your basket yet
Arrow left icon
All Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Newsletters
Free Learning
Arrow right icon
Troubleshooting OpenVPN

You're reading from  Troubleshooting OpenVPN

Product type Book
Published in Mar 2017
Publisher Packt
ISBN-13 9781786461964
Pages 178 pages
Edition 1st Edition
Languages
Concepts
Author (1):
Eric F Crist Eric F Crist
Profile icon Eric F Crist
LinkedIn
Eric F Crist hails from Cottage Grove, Minnesota, and he works as a product and systems engineer for Abbott. He has a relatively wide range of professional and life experience starting from physical security and access control as a low-voltage technician into software development, system administration, and software development. Eric has been a core member of the OpenVPN community since 2008 and helps manage the open source online resources. He also wrote ssl-admin, and he is a lead for Easy-RSA, both of which help manage Certificate Authorities and chains. Eric collaborated with Jan Just Keisjer for the book, Mastering OpenVPN, in 2015, also for Packt.
See other products by Eric F Crist

Table of Contents (16) Chapters

Troubleshooting OpenVPN
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
1. Troubleshooting Basics 2. Common Problems 3. Installing OpenVPN 4. The Log File 5. Client and Server Startup 6. Certificates and Authentication 7. Network and Routing 8. Performance 9. External Problems

Common log messages

Understanding the most common log messages present at --verb 4 allows you to quickly scan the log file for errors while also comprehending the events taking place. The messages described here are a mix of both affirmative (good) messages, as well as the most common messages indicating errors.

Startup messages

OpenVPN will evoke a number of messages upon startup. Some of these messages are informational, others are warnings of perhaps new options, or options that are potentially dangerous if used or omitted.

Version and compile string

The first line to explore is the OpenVPN version string. This string will indicate the actual release of the software used along with some important build and compile-time information. The first two examples show OpenVPN version 2.3.11 compiled with OpenSSL, LZO, PKCS11, MH (extended IP packet information), and IPv6.

The second piece of the string lists the processor platform and additional data about the system that performed the compile. Our...

lock icon The rest of the chapter is locked
arrow left Previous Chapter
Chapter 1 of 16
Next Chapter arrow right
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Sign up now
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Start free trial
Renews at €14.99/month. Cancel anytime}

Authors (1)

Profile icon Eric F Crist
LinkedIn
Eric F Crist hails from Cottage Grove, Minnesota, and he works as a product and systems engineer for Abbott. He has a relatively wide range of professional and life experience starting from physical security and access control as a low-voltage technician into software development, system administration, and software development. Eric has been a core member of the OpenVPN community since 2008 and helps manage the open source online resources. He also wrote ssl-admin, and he is a lead for Easy-RSA, both of which help manage Certificate Authorities and chains. Eric collaborated with Jan Just Keisjer for the book, Mastering OpenVPN, in 2015, also for Packt.
Read more
See other products by Eric F Crist

Other recommended products

Related to this chapter
Left arrow icon
OpenVPN Cookbook
OpenVPN Cookbook
Feb 2017 13 hours 20 minutes
pfSense 2.x Cookbook
pfSense 2.x Cookbook
pfSense is a FreeBSD-based firewall that provides a platform for flexible and powerful routing and firewalling. This book focuses on configuring essential and other commonly used pfSense services; such as traffic shaping, redundancy, high availability, static and dynamic routing, backup and restoration of pfSense, and diagnostic tools.
Dec 2018 9 hours 56 minutes
Mastering pfSense
Mastering pfSense
pfSense is open source router/firewall software based on FreeBSD. This book shows how to install and customize pfSense in a variety of scenarios, providing many concrete examples.
May 2018 15 hours 0 minutes
Learn pfSense 2.4
Learn pfSense 2.4
This book covers everything the reader needs to know to get pfSense up and running, as well as how to configure core pfSense services to both secure and optimize their networks, third party packages that extend the functionality of pfSense, and the basics of diagnostics and troubleshooting networks.
Jul 2018 11 hours 32 minutes
CompTIA Network+ Certification Guide
CompTIA Network+ Certification Guide
CompTIA Network+ Certification Guide makes the most complex Network+ concepts easy to understand despite having no prior knowledge. It offers exam tips in every chapter along with access to practical exercises and exam checklist that map to the exam objectives and it is the perfect study guide to help you pass CompTIA Network+ exam.
Dec 2018 14 hours 4 minutes
Right arrow icon

Personalised recommendations for you

Based on your interests and search pattern
Left arrow icon
Designing and Implementing Microsoft Azure Networking Solutions
Designing and Implementing Microsoft Azure Networking Solutions
Designing and Implementing Microsoft Azure Networking Solutions Exam Ref AZ-700 is an all-encompassing guide to the AZ-700 exam and contains all the information you need to succeed in the world of virtual networking with Azure. With this book, you will be fully prepared for the exam and the world of cloud networking.
Aug 2023 17 hours 28 minutes
Microsoft 365 Security, Compliance, and Identity Administration
Microsoft 365 Security, Compliance, and Identity Administration
The Microsoft 365 Security, Compliance, and Identity Administration is a comprehensive guide that helps you employ Microsoft 365's robust suite of features and empowers you to optimize your administrative tasks.
Aug 2023 21 hours 0 minutes
Zero Trust Overview and Playbook Introduction
Zero Trust Overview and Playbook Introduction
Get started on Zero Trust with this step-by-step playbook and learn everything you need to know for a successful Zero Trust journey with tailored guidance for every role, covering strategy, operations, architecture, implementation, and measuring success. This book will become an indispensable reference for everyone in your organization.
Oct 2023 8 hours 0 minutes
The Self-Taught Cloud Computing Engineer
The Self-Taught Cloud Computing Engineer
This self-study book helps you master multiple clouds, including AWS, Azure, and GCP, and serves as a roadmap to becoming a certified cloud computing expert. The book will guide you to develop a professional cloud career by helping you build a broad cloud knowledge base, developing hands-on cloud computing skills, and getting cloud certified.
Sep 2023 15 hours 44 minutes
Technology Operating Models for Cloud and Edge
Technology Operating Models for Cloud and Edge
This book will help you build and create ownership of a technology operating model, as well as connect your leadership with engineering and operations, keeping your internal and external customers in mind. It provides practical tips on why, where, and how to make the cloud and edge platform paradigm sing for you, your team, and your organization.
Aug 2023 7 hours 36 minutes
Azure Architecture Explained
Azure Architecture Explained
Azure is the preferred platform to build mission-critical and secure apps. This book provides comprehensive coverage of essential Azure products, services, and solutions vital for every solution architect's success. Elevate your knowledge and master the critical components of Azure to excel in your role with Azure Architecture Explained.
Sep 2023 14 hours 52 minutes
Pentesting Active Directory and Windows-based Infrastructure
Pentesting Active Directory and Windows-based Infrastructure
This practical guide helps you explore the pentesting of Microsoft infrastructure in detail, and enhances your offensive skillset by showing you the different ways to perform security assessment. This book will help blue teamers and IT engineers get up to speed with possible security issues they may encounter in their Windows environments.
Nov 2023 12 hours 0 minutes
Practical Ansible
Practical Ansible
In Practical Ansible, you'll work with the latest release of Ansible and learn to solve complex issues quickly with the help of task-oriented scenarios. You'll start by installing and configuring Ansible to automate monotonous and repetitive IT tasks and get to grips with concepts such as playbooks, inventories, plugins, collections, and network modules.
Sep 2023 14 hours 0 minutes
Windows 11 for Enterprise Administrators
Windows 11 for Enterprise Administrators
Microsoft’s launch of Windows 11 is a step toward satisfying the enterprise administrator’s needs for better management and enhanced user experience customization. This book provides the enterprise administrator with the knowledge needed to fully utilize the advanced feature set of Windows 11 Enterprise.
Oct 2023 9 hours 32 minutes
The Linux DevOps Handbook
The Linux DevOps Handbook
This book is for software and IT professionals seeking knowledge on Linux systems and DevOps practices. This book will provide you with guidance and tools to learn and gain proficiency in managing Linux-based infrastructures and knowledge of DevOps.
Nov 2023 14 hours 16 minutes
Right arrow icon