#sysadmin

194 posts

@dev_community How We Built a 200-User Office Network in Three Weeks #Networking #ITInfrastructure #Sysadmin
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Oct 11, 2026
@server_fault Postfix Amazon SES forwarding not working - SASL authentication failed 535 Authentication Credentials Invalid #SysAdmin #Postfix #EmailServer
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Oct 10, 2026
@server_fault Add a custom Host header to ProxyPass requests in Apache #SysAdmin #Networking #Apache
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Oct 10, 2026
@lets_encrypt_community_support Systemd services not installed for certbot #Security #Certbot #Sysadmin
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Oct 9, 2026
@lets_encrypt_community_support Systemd services not installed for certbot #LetsEncrypt #Certbot #Sysadmin
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Oct 9, 2026
@lets_encrypt_community_support Systemd services not installed for certbot #LetsEncrypt #Certbot #Sysadmin
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Oct 9, 2026
@server_fault WordPress email notifications not getting delivered by postfix on secondary addon domains #SysAdmin #Email #Postfix
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Oct 9, 2026
@unix_stackexchange What happened to the "linuxefi" and "initrdefi" GRUB commands? #Linux #Unix #SysAdmin
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Oct 9, 2026
@unix_stackexchange IPFW and Outbound HTTP(S) Requests #Linux #Networking #SysAdmin
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Oct 8, 2026
@lobsters Headers Up! What's New in httpd and relayd #OpenSource #WebDev #SysAdmin
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Oct 7, 2026
@icinga Icinga Web Filter Syntax: Operators, Wildcards and Custom Variables #Monitoring #DevOps #SysAdmin
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Oct 7, 2026
@server_fault dsconf command not on Red Hat server #Linux #SysAdmin #Networking
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Oct 6, 2026
@unix_linux_community Cyberduck fails to connect to SFTP server #Linux #SysAdmin #Networking
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Oct 6, 2026
@virtualization_howto 7 Linux Commands Most People Discover Too Late in Their Home Lab #Linux #HomeLab #SysAdmin
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Oct 1, 2026
@technicus Recover CEPH mon cluster after host failure #Linux #Ceph #SysAdmin
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Sep 30, 2026
@server_fault Apache Reverse Proxy isn't redirecting properly #SysAdmin #Networking #WebServers
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Sep 30, 2026
@lobsters Unix File and Directory Permissions and Modes (2018) #Unix #SysAdmin #Programming
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Sep 29, 2026
@technicus CRON: Get full output only on error #Linux #CLI #SysAdmin
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Sep 26, 2026
@lowendbox Make Your VPS Reactive: Easily Write Scripts that Fire Automatically When Filesystem Events Occur with python-inotify #Python #Sysadmin #Automation
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Sep 23, 2026
@grepular Hardening Container Images #Security #Container #Sysadmin
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Sep 5, 2026
@lobsters Migrating from Codeberg Pages to an OpenBSD VPS #OpenBSD #WebDev #SysAdmin
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Aug 25, 2026
@lobsters Dynamically Naming Servers #DevOps #SysAdmin #Networking
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Aug 24, 2026
@server_fault Logging into admin section throws Cross-site POST form submissions are forbidden #SysAdmin #WebSecurity #Troubleshooting
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Aug 21, 2026
@purplesyringa accept() and socket inheritance #Programming #Networking #SysAdmin
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Aug 20, 2026
@server_fault Ubuntu iptables change source port of incoming traffic #Linux #Networking #SysAdmin
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Aug 11, 2026
@unix_linux_community Cp -r with exec of find #Linux #ShellScripting #SysAdmin
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Aug 2, 2026
@sean_behan Running my site through an MCP server #WebDev #SysAdmin #Programming
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Aug 1, 2026
@lobsters Dead Software Walking: The ongoing evolution of relayd(8) and httpd(8) #OpenBSD #Sysadmin #SoftwareDev
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Jul 31, 2026
@server_fault How to add a new secondary PowerDNS server and transfer all existing zones from the primary #SysAdmin #PowerDNS #Networking
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Jul 25, 2026
@hackernews An unusual way for your DHCP server to run out of dynamic IPs #HackerNews #Tech #SysAdmin
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Jul 10, 2026
@unix_linux_community What is Open SQL gateway? #Database #SQL #SysAdmin
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Jul 8, 2026
@hackernews Sometimes it is the network: a war story #HackerNews #Tech #SysAdmin
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Jul 6, 2026
@server_fault CoreDNS resolution does not work for Docker container #Docker #Networking #SysAdmin
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Jun 28, 2026
@lobsters I've gone full Nix: Proxmox to NixOS + Incus #Nixos #DevOps #SysAdmin
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Jun 25, 2026
@guillermo_garron chage -- manage password expiry and aging on Linux #Linux #Security #SysAdmin
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Jun 8, 2026
@hackernews Sysadmining Like It's 2009 #HackerNews #Tech #Sysadmin
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Jun 1, 2026
@lobsters Sysadmining like it's 2009 #Sysadmin #RetroTech #IT
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Jun 1, 2026
@unix_linux_community Migration of rootvg disk in vios with new disk #Unix #Linux #SysAdmin
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May 22, 2026
@server_fault Mail deliverability issues: reputation or p=reject? #SysAdmin #Email #Networking
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May 22, 2026
@lobsters This blog ran on Ubuntu 16.04 for 10 years. I migrated it to FreeBSD #FreeBSD #Linux #SysAdmin
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May 22, 2026

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