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    • Our Blog

    Ongoing observations by End Point Dev people

    Blog posts tagged ‘sysadmin’

    Streamlining SELinux Policies: From Policy Modules to Modules and Silent SELinux Denials

    Bharathi Ponnusamy · August 26, 2024

    Setting User-Specific Resource Limits with systemd

    Seth Jensen · February 3, 2024

    SSH and Old Servers

    Josh Ausborne · July 21, 2023

    Rocky Linux 9 at Hetzner Robot Made Quick and Easy

    Jeffry Johar · July 1, 2023

    Rocky Linux 9 via Hetzner Robot for the impatient

    Jeffry Johar · June 12, 2023

    Google Chrome Yum/​RPM package update fails on RHEL/​CentOS 7

    Jon Jensen · June 8, 2023

    SSH host key verification: a few useful tips

    Selvakumar Arumugam · April 13, 2023

    Introduction to Terraform with AWS

    Jeffry Johar · November 9, 2022

    Upgrading PostgreSQL 14 to 15 on Fedora, RHEL, CentOS, Rocky, Alma Linux with PGDG RPM packages

    Jon Jensen · October 14, 2022

    Git 2.38 packages for RHEL, CentOS, Rocky Linux, AlmaLinux, Oracle Linux 7 and 8

    Jon Jensen · October 5, 2022

    Ansible tutorial with AWS EC2

    Jeffry Johar · August 11, 2022

    Working around SPF problems delivering to Gmail

    Jon Jensen · March 30, 2022

    Using a YubiKey as authentication for an encrypted disk

    Zed Jensen · March 7, 2022

    Using SSH tunnels to get around network limitations

    Zed Jensen · January 26, 2022

    Installing Git 2 on CentOS 7

    Jon Jensen · December 9, 2021

    Introduction to BorgBackup

    Kannan Ponnusamy · September 10, 2020

    Rclone: upload to the cloud from your command line and much more

    Ardyn Majere · September 9, 2020

    Randomly spacing cron jobs

    Jon Jensen · June 30, 2020

    Testing to defend against nginx add_header surprises

    Jon Jensen · May 29, 2020

    Installing Ubuntu 18.04 to a different partition from an existing Ubuntu installation

    Bharathi Ponnusamy · April 6, 2020

    Google Drive for virtual machine images

    Jon Jensen · September 30, 2019

    Keeping our Windows Server clean

    Juan Pablo Ventoso · September 27, 2019

    Linux desktop Postfix queue for Gmail SMTP

    Jon Jensen · April 30, 2019

    Switching PostgreSQL WAL-based Backup Options

    Josh Williams · January 3, 2019

    Instant TLS Upgrades Through Proxy Magic!

    David Christensen · June 14, 2018

    Recycling Web Workers: Just Proper Hygiene

    Josh Williams · March 23, 2018

    Web Security Services Roundup

    Phineas Jensen · September 19, 2017

    Become A File Spy With This One Easy Trick! Sys Admins Love This!

    Josh Williams · February 28, 2017

    DNS and BIND Training with MyNIC

    Muhammad Najmi bin Ahmad Zabidi · November 16, 2016

    SSH Key Access Recovery on EC2 Instances

    Josh Williams · October 2, 2016

    Creating Composite Docker Containers with Docker Compose

    Kirk Harr · February 16, 2016

    Bonked By Basic_auth Because Bcrypt

    Greg Sabino Mullane · February 9, 2016

    File names the same except for capitalization

    Jon Jensen · January 7, 2016

    Odd pg_basebackup Connectivity Failures Over SSL

    Josh Williams · November 13, 2015

    Taking control of your IMAP mail with IMAPFilter

    Patrick Lewis · November 6, 2015

    Install Tested Packages on Production Server

    Selvakumar Arumugam · September 7, 2015

    Streaming Replication time lag monitoring added to check_postgres

    Josh Williams · August 10, 2015

    Postfix Address Verification

    Marco Matarazzo · May 28, 2015

    Protect Interchange Passwords with Bcrypt

    Mark Johnson · April 28, 2015

    Handling databases in dev environments for web development

    Spencer Christensen · April 21, 2015

    The ‘name’ attribute is required in cookbook metadata: Solving a Vagrant/Chef Provisioning Issue

    Greg Davidson · April 21, 2015

    HTTP/2 is on the way!

    Jon Jensen · March 13, 2015

    FOSDEM conference day 1

    Emanuele “Lele” Calò · January 31, 2015

    Shrink XFS partition: Almost possible with LVM

    Emanuele “Lele” Calò · January 29, 2015

    Elastic Beanstalk Whenever

    Kent Krenrich · January 27, 2015

    SSH one-time passwords (otpw) on chromebook

    Greg Sabino Mullane · January 21, 2015

    Can we Server Name Indicate yet?

    Josh Williams · November 13, 2014

    OpenSSL CSR with Alternative Names one-line

    Emanuele “Lele” Calò · October 30, 2014

    Adventures in Downgrading my Linode Plan

    Steph Skardal · September 9, 2014

    Rsyslog property based filtering features

    Emanuele “Lele” Calò · September 4, 2014

    Postfix IPv6 preference

    Jon Jensen · August 19, 2014

    Interchange 5.8.2 Release with Bcrypt Encryption Support

    Mark Johnson · July 9, 2014

    DAD Trouble

    Josh Williams · June 15, 2014

    Scripting ssh master connections

    Josh Williams · March 17, 2014

    md+lvm expansion from RAID 1 to RAID 5

    Josh Williams · March 9, 2014

    Ansiblizing SSH Keys

    Cas Rusnov · March 3, 2014

    phpMemcachedAdmin: Graphical/Web Administration for memcached

    Emanuele “Lele” Calò · February 3, 2014

    IPTables: All quotes are not created equal

    Richard Templet · January 7, 2014

    Zero Downtime Deploys with Unicorn

    Mike Farmer · November 21, 2013

    SELinux fix for sudo PAM audit_log_acct_message() failed

    Jon Jensen · November 20, 2013

    Downstream Implications of Data Page Checksums

    Josh Williams · October 30, 2013

    SSL Certificate SANs and Multi-level Wildcards

    Cas Rusnov · October 29, 2013

    PostgreSQL Debian apt repository GnuPG key update

    Jon Jensen · October 15, 2013

    Comparing installed RPMs on two servers

    Jon Jensen · September 27, 2013

    Give me my /var/log/rpmpkgs back!

    Emanuele “Lele” Calò · August 12, 2013

    Proxmox and the fun maze of IPv6 connectivity

    Emanuele “Lele” Calò · July 8, 2013

    Automating checking for new versions of PostgreSQL

    Greg Sabino Mullane · July 3, 2013

    Custom 500 error page while using nginx proxying

    Richard Templet · June 21, 2013

    Debugging obscure Postgres problems with strace

    Greg Sabino Mullane · June 20, 2013

    Rackspace Load Balancers network issues and “desperate” solution

    Emanuele “Lele” Calò · May 1, 2013

    Estimating overlayfs File Space Usage on Ubuntu 12.04 LiveCD

    Adam Vollrath · April 24, 2013

    SSH ProxyCommand with netcat and socat

    Greg Sabino Mullane · April 24, 2013

    Making SSL Work with Django Behind an Apache Reverse Proxy

    Greg Davidson · April 9, 2013

    Avoid 2:00 and 3:00 am cron jobs!

    Jon Jensen · April 8, 2013

    SFTP virtual users with ProFTPD and Rails: Part 1

    Brian Gadoury · December 20, 2012

    Using cec-client to Control HDMI Devices

    Matt Vollrath · November 8, 2012

    cPanel no-pty ssh noise removal

    Jon Jensen · November 6, 2012

    cPanel Exim false positive failure & restart fix

    Jon Jensen · July 24, 2012

    Automated VM cloning with PowerCLI

    Brian Buchalter · July 23, 2012

    RHEL 6 glibc IPv6 DNS resolution bug

    Jon Jensen · July 17, 2012

    UTOSC 2012 talks of interest

    Jon Jensen · May 18, 2012

    SELinux Local Policy Modules

    Jon Jensen · May 11, 2012

    Custom Apache log to only show HTML requests

    Ron Phipps · April 6, 2012

    Puppet custom facts and Ruby plugins to set a homedir

    Greg Sabino Mullane · March 21, 2012

    IPv6 Tunnels with Debian/Ubuntu behind NAT

    Brian Buchalter · March 1, 2012

    Linux unshare -m for per-process private filesystem mount points

    Jon Jensen · January 27, 2012

    Our SoftLayer API tools

    Jon Jensen · January 23, 2012

    Converting CentOS 6 to RHEL 6

    Jon Jensen · December 22, 2011

    RPM building: Fedora’s _sharedstatedir

    Jon Jensen · October 25, 2011

    Remove specific CGI variables using Apache

    David Christensen · August 10, 2011

    June 8, 2011: World IPv6 Day

    Josh Williams · June 7, 2011

    Google 2-factor authentication

    Jon Jensen · March 14, 2011

    jQuery and Long-Running Web App Processes: A Case Study

    Brian Gadoury · March 8, 2011

    SSH: piping data in reverse

    David Christensen · March 1, 2011

    GNU Screen + SSH_AUTH_SOCK; my new approach

    David Christensen · February 23, 2011

    Monitoring with Purpose

    Jason Dixon · February 4, 2011

    SSH config wildcards and multiple Postgres servers per client

    Greg Sabino Mullane · January 7, 2011

    Liquid Galaxy Sysadmin+ Wanted

    Benjamin Goldstein · November 18, 2010

    Best practices for cron

    Greg Sabino Mullane · December 8, 2008

    Creating a PL/Perl RPM linked against a custom Perl build (updated)

    Jon Jensen · November 29, 2008

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