Search - systemd | Dave’s Brain

Search - systemd

2026.apr.29 Computer - Fedora: How to upgrade to the next version of Fedora with dnf
2026.apr.26 Computer - Linux: shutdown inhibited - what can I do
2025.oct.23 Computer - Wireguard: Start/stop/enable/disable on Linux and Windows
2025.oct.22 Programming - Linux: How to make a systemd service?
2025.sep.02 Computer - fail2ban: How to setup on Fedora
2025.aug.21 Computer - Linux: How can I show the symbolic links in a folder?
2025.jun.21 Computer - journalctl: See entries by program name (not unit name)
2025.jun.13 Computer - Fedora: Run a command at boot / startup
2025.jan.10 Computer - Linux: how does `shutdown` and `poweroff` work
2025.jan.01 Computer - Roundcube: Connection to storage server failed. Could not connect to localhost4:143: Connection refused
2025.jan.01 Computer - Linux: accurately set the time on my Linux box
2024.dec.30 Computer - Apache: Password protect part of a website using an .htaccess file
2024.dec.24 Computer - Postfix: Keep a backup copy of all mail sent by my Postfix server
2024.nov.27 Computer - Fix for: systemd[1]: colord.service: Failed with result 'core-dump'
2024.nov.27 Computer - Fix for: systemd[1]: Failed to start systemd-binfmt.service - Set Up Additional Binary Formats
2024.nov.20 Computer - Fedora 41+: Automatically install updates
2024.nov.01 Computer - Linux: See failed ssh login attempts
2024.nov.01 Computer - journalctl: How can I only see recent entries
2024.oct.11 Computer - Dovecot: imap-login: Error: Diffie-Hellman key exchange requested, but no DH parameters provided. Set ssl_dh=/path/to/dh.pem
2024.sep.21 Computer - Fedora 40: Automatically install updates
2024.may.18 Computer - systemd: A script to check systemd-resolved
2024.apr.18 Computer - Fedora: Remote desktop Windows to Fedora (2024)
2024.apr.03 Computer - systemd: journal message systemd[1]: /etc/systemd/system/.../override.conf: Unknown key name 'IpAddressAllow' in section 'Service', ignoring.
2024.mar.27 Computer - Apache: Enable gzip compression (to save bandwidth speed up your website)
2024.jan.14 Computer - podman: Start podman with systemd
2024.jan.08 Computer - systemd: I disabled CUPS but its still active - how to really disabled it
2023.jul.03 Computer - Linux: Command line system monitors (like `top`)
2023.apr.27 Computer - Fedora 38: The system will suspend now!
2023.mar.28 Computer - systemd: `systemctl status` says "Tainted: local-hwclock"
2023.mar.16 Computer - systemd: How to switch to text mode
2023.mar.15 Computer - Fedora: Change grub parameters so you have a plain-text boot
2023.feb.04 Computer - systemd-resolved: Using degraded feature set UDP instead of UDP+EDNS0 for DNS server n.n.n.n
2022.nov.07 Computer - systemd-resolved[]: Using degraded feature set UDP instead of TCP for DNS server ip-address
2022.sep.13 Computer - Postfix: postfix/postdrop warning: mail_queue_enter: create file maildrop/N.N Permission denied
2022.mar.09 Computer - Postfix: Fatal error seeking /var/lib/postfix/postscreen_cache.db [number] fatal: error [-30986]
2022.mar.04 Computer - Systemd: RestrictAddressFamilies=none / SystemCallFilter=none
2022.feb.23 Computer - Linux: Sandbox services with systemd
2022.feb.14 Computer - Linux: fatal: inet_addr_local[getifaddrs]: getifaddrs: Address family not supported by protocol
2022.feb.10 Programming - PHP: Warning: preg_match(): Allocation of JIT memory failed, PCRE JIT will be disabled. This is likely caused by security restrictions. Either grant PHP permission to allocate executable memory, or set pcre.jit=0 in [file] on line [line]
2022.jan.28 Programming - Linux: Create a sandbox for an application using system calls
2022.jan.03 Computer - Linux: Show a tree of current services (units) run by systemd
2021.nov.29 Computer - Linux: start clamd daemon as a helper for clamscan
2021.nov.15 Computer - Linux: Lock down Apache webserver
2021.jun.30 Computer - Web: Avoid caching in websites (cache busting)
2021.may.16 Computer - systemd: "Standard output type syslog is obsolete, automatically updating to journal. Please update your unit file, and consider removing the setting altogether."
2021.feb.26 Computer - Wireguard: Fedora server and Android client
2020.nov.24 Computer - Linux: How do I change the computer name of my RedHat/Fedora/CentOS box?
2020.sep.21 Computer - systemctl: enable and start / disable and stop in one command
2020.jul.23 Computer - Fedora: Remote desktop Windows to Fedora
2020.jun.16 Computer - Linux: Install Prosody XMPP server
2020.apr.28 Computer - systemctl: Cheatsheet (some common commands)
2020.apr.28 Computer - Postgresql: Postgresql does not understand databases from previous versions
2020.apr.20 Computer - journalctl: How can I see the last (most recent) entries
2020.mar.27 Computer - journalctl: Limit the journal size
2020.mar.11 Computer - Postfix: Discard mail to one user
2020.jan.01 Computer - Fedora: LXC on Fedora 31
2019.dec.04 Computer - Apache: Make the autoindex pretty
2019.nov.11 Computer - systemd: Restart down service
2019.sep.25 Computer - SpamAssassin: put spam messages into a folder with Postfix and Dovecot
2019.sep.24 Computer - SpamAssassin: Setup SpamAssassin for Postfix on RedHat/Fedora/CentOS
2019.sep.11 Computer - Old - Red Hat: Automatic package updates with dnf-automatic
2019.jan.04 Computer - OpenVPN: Client setup on Fedora
2018.dec.29 Computer - OpenVPN: Server setup on Fedora
2018.jul.24 Computer - Linux: Where does the time go when my system boots?
2018.jun.20 Computer - Proftpd: TLS on RedHat/Fedora/CentOS
2018.jan.13 Computer - Linux: How can I see if my date-time is synchronized?
2017.nov.27 Computer - Linux: What should I do when systemctl can't find my unit but I know its there?
2017.oct.28 Computer - Linux: Is there any Linux stuff you recommend not using?
2017.sep.07 Computer - Linux: How can I fake the uninstall of a package?
2015.jun.06 Computer - Firewall: How to change the firewall from a terminal window?
2014.dec.22 Programming - Ant: Use Apache Ant to restart a service
2014.nov.07 Computer - systemd: How to make a service start only after networking is going.
2014.sep.09 Computer - Fedora: Is there a GUI to see what systemd tasks are running?
2014.may.02 Computer - systemd: Is there a nice way to view systemd events?
2013.aug.30 Computer - BOINC: How to set a headless up SETI
2013.feb.19 Computer - Postfix: Avoid the annoying spam attempts away from my Postfix logs
2012.dec.27 Programming - Linux: My PHP program can see its temporary files -- but when logged in I can not see them -- why?
2012.oct.03 Computer - Old - How can I configure my firewall when logged in thru a terminal window?
2012.aug.20 Computer - Apache Tomcat: How can I make Apache Tomcat work on Fedora 17?
2012.apr.23 Computer - mysql: How to fix an error from mysqldump saying it can not write to /tmp/MY(random-name) (Error 2) ?
2012.apr.08 Programming - C/C++: How can my program background itself?
2012.apr.08 Computer - Linux: How to boot my RedHat/Fedora/CentOS system into text mode from a CD-ROM?
2012.feb.26 Computer - systemd: How to change the default run-level for systemd?
2011.jan.24 Computer - Samba: How to hide Samba's version number?
2010.jun.01 Computer - Linux: How can I restart a service/daemon when it dies?
2010.apr.29 Computer - Postfix: Is there a way to automatically rebuild the postfix .db files
2010.mar.26 Programming - PHP: Fatal error: Call to undefined function imagecreate() in myprogram.php on line number
2008.nov.24 Computer - Postfix: Make Postfix's anvil log less
2008.jul.09 Computer - Postfix: Make Postfix support secure SMTP (SMTPS)
2008.apr.05 Computer - Nagios: How to quickly install Nagios on RedHat/Fedora/CentOS?
2008.apr.04 Computer - Old - How do I make a Linux service (daemon) start at boot?
2007.dec.14 Computer - vsftpd: How do I make TLS/SSL work with vsftpd?
2007.dec.14 Computer - Postfix: Make Postfix support TLS
2007.dec.14 Computer - Dovecot: How to enable SSL/TLS with Dovecot (the POP3 and IMAP server)?
2007.nov.30 Computer - Postfix: Give valid offsite users a way to use my SMTP service (submission)