• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer

Mister PKI

SSL Certificates * SSL Tools * Certificate Decoder

  • Buy SSL Certificates
  • Blog
  • OpenSSL
  • Keytool
  • SSL Tools
  • Donate
  • Cookie Policy (EU)

Blog

openssl s_client

August 10, 2023

openssl s_client commands and examples

The s_client command from OpenSSL is a helpful test client for troubleshooting remote SSL or TLS connections. The post strives to walk you through various examples of testing SSL connections with different ciphers, TLS versions, and SSL server certificate analysis. Testing SSL configuration on … [Read more...] about openssl s_client commands and examples

openssl,  SSL Certificates

openssh sftp server

July 19, 2023

OpenSSH SFTP Server

This article will demonstrate how to install and manage an OpenSSH SFTP Server on Linux. This in effect is a Linux SFTP server using OpenSSH instead of the more common vsftpd package. The question of which of the two options is the best sftp server for linux will not be answered in this article. … [Read more...] about OpenSSH SFTP Server

Identity Management,  linux,  ssh

aws cli route 53 change

July 17, 2023

AWS CLI Route 53 Change

This article will demonstrate how to create, delete, or change a DNS record in AWS Route 53 with the AWS CLI. In addition, this article will demonstrate how to write a bash wrapper function to wrap the cli commands to help with memorization. If you are anything like me, I would much prefer a … [Read more...] about AWS CLI Route 53 Change

AWS

No matching host key type found

July 6, 2023

No matching host key type found – SSH and SFTP

The purpose of this article is to demonstrate how to use ssh to remotely connect to an older linux host from a newer version of openssh when receiving the no matching host key type found error. The example in this article was used against an older RHEL 6.5 server. Additionally, the article will … [Read more...] about No matching host key type found – SSH and SFTP

linux,  redhat,  ssh

sendmail vs postfix

June 14, 2023

Sendmail vs Postfix – Mail Transfer Agent Comparison

Sendmail vs Postfix - both are Mail Transfer Agents (MTA) used for sending mail from a Linux host. The primary concerns when deciding which MTA to use come down to performance, ease of use, and security. Postfix is the most commonly used MTA, for good reason. It is a security oriented mail server … [Read more...] about Sendmail vs Postfix – Mail Transfer Agent Comparison

linux

redhat disable ipv6

June 13, 2023

Redhat Disable IPv6

This article will demonstrate how to in Redhat disable the IPv6 protocol. This is especially useful and common in private networks that have no need to support IPv6. Private networks usually have more than enough IPv4 addresses, and enabling IPv6 can introduce a number of unexpected networking … [Read more...] about Redhat Disable IPv6

linux,  redhat

AWS CLI Route53 Query

June 7, 2023

AWS CLI Route53 Query

The purpose of this article is to demonstrate how to use the AWS CLI Route53 Query functionality to search your DNS managed in Route53. This article will demonstrate two specific types of searches based on a single query parameter. One example for an IP based search and one example for a DNS name … [Read more...] about AWS CLI Route53 Query

AWS,  linux

java keystore pkcs12 legacy

June 5, 2023

java keystore pkcs12 legacy

This article will detail how to troubleshoot and correct the java keystore pkcs12 legacy issues with keystores generated with newer cryptographic algorithms and older versions of Java. If you have encountered these issues with OpenSSL instead of the Java keytool, read our article specifically for … [Read more...] about java keystore pkcs12 legacy

java,  keytool,  SSL Certificates

  • Go to page 1
  • Go to page 2
  • Go to page 3
  • Interim pages omitted …
  • Go to page 17
  • Go to Next Page »

Primary Sidebar

Popular Posts

PKCS12

openssl s_client

Keytool

Keytool list

ECDSA vs RSA

OpenSSL

PKCS7

Certificate Decoder

Buy SSL Certificates

The SSL Store

Comodo Store

Sectigo Store

RapidSSL

Recent Posts

  • openssl s_client commands and examples
  • OpenSSH SFTP Server
  • AWS CLI Route 53 Change
  • No matching host key type found – SSH and SFTP
  • Sendmail vs Postfix – Mail Transfer Agent Comparison

Footer

  • Twitter
  • YouTube

Pages

  • About Mister PKI
  • Blog
  • Compare and Buy Affordable PKI Certificates
  • Contact Us
  • Cookie Policy (EU)
  • Full Disclosure
  • Privacy Policy
  • SSL Tools – Certificate Decoder and Certificate Checker

Copyright © 2023