{ "mode": "man", "parameter": "systemd.system-credentials", "section": "7", "url": "https://www.chedong.com/phpMan.php/man/systemd.system-credentials/7/json", "generated": "2026-09-12T06:58:23Z", "sections": { "NAME": { "content": "systemd.system-credentials - System Credentials\n", "subsections": [] }, "DESCRIPTION": { "content": "\u001b[34mSystem and Service Credentials[1] are data objects that may be passed into booted systems or\nsystem services as they are invoked. They can be acquired from various external sources, and\npropagated into the system and from there into system services. Credentials may optionally be\nencrypted with a machine-specific key and/or locked to the local TPM2 device, and are only\ndecrypted when the consuming service is invoked.\n\nSystem credentials may be used to provision and configure various aspects of the system.\nDepending on the consuming component credentials are only used on initial invocations or are\nneeded for all invocations.\n\nCredentials may be used for any kind of data, binary or text, and may carry passwords,\nsecrets, certificates, cryptographic key material, identity information, configuration, and\nmore.\n", "subsections": [] }, "WELL KNOWN SYSTEM CREDENTIALS": { "content": "firstboot.keymap\nThe console key mapping to set (e.g. \"de\"). Read by systemd-firstboot(1), and only\nhonoured if no console keymap has been configured before.\n\nAdded in version 252.\n\nfirstboot.locale, firstboot.locale-messages\nThe system locale to set (e.g. \"deDE.UTF-8\"). Read by systemd-firstboot(1), and only\nhonoured if no locale has been configured before. firstboot.locale sets \"LANG\", while\nfirstboot.locale-message sets \"LCMESSAGES\".\n\nAdded in version 252.\n\nfirstboot.timezone\nThe system timezone to set (e.g. \"Europe/Berlin\"). Read by systemd-firstboot(1), and\nonly honoured if no system timezone has been configured before.\n\nAdded in version 252.\n\nlogin.issue\nThe data of this credential is written to /etc/issue.d/50-provision.conf, if the file\ndoesn't exist yet. agetty(8) reads this file and shows its contents at the login prompt\nof terminal logins. See issue(5) for details.\n\nConsumed by /usr/lib/tmpfiles.d/provision.conf, see tmpfiles.d(5).\n\nAdded in version 252.\n\nlogin.motd\nThe data of this credential is written to /etc/motd.d/50-provision.conf, if the file\ndoesn't exist yet. pammotd(8) reads this file and shows its contents as \"message of the\nday\" during terminal logins. See motd(5) for details.\n\nConsumed by /usr/lib/tmpfiles.d/provision.conf, see tmpfiles.d(5).\n\nAdded in version 252.\n\nnetwork.hosts\nThe data of this credential is written to /etc/hosts, if the file doesn't exist yet. See\nhosts(5) for details.\n\nConsumed by /usr/lib/tmpfiles.d/provision.conf, see tmpfiles.d(5).\n\nAdded in version 252.\n\nnetwork.dns, network.searchdomains\nDNS server information and search domains. Read by systemd-resolved.service(8).\n\nAdded in version 253.\n\npasswd.hashed-password.root, passwd.plaintext-password.root\nMay contain the password (either in UNIX hashed format, or in plaintext) for the root\nusers. Read by both systemd-firstboot(1) and systemd-sysusers(1), and only honoured if no\nroot password has been configured before.\n\nAdded in version 252.\n\npasswd.shell.root\nThe path to the shell program (e.g. \"/bin/bash\") for the root user. Read by both\nsystemd-firstboot(1) and systemd-sysusers(1), and only honoured if no root shell has been\nconfigured before.\n\nAdded in version 252.\n\nssh.authorizedkeys.root\nThe data of this credential is written to /root/.ssh/authorizedkeys, if the file doesn't\nexist yet. This allows provisioning SSH access for the system's root user.\n\nConsumed by /usr/lib/tmpfiles.d/provision.conf, see tmpfiles.d(5).\n\nAdded in version 252.\n\nsysusers.extra\nAdditional sysusers.d(5) lines to process during boot.\n\nAdded in version 252.\n\nsysctl.extra\nAdditional sysctl.d(5) lines to process during boot.\n\nAdded in version 252.\n\ntmpfiles.extra\nAdditional tmpfiles.d(5) lines to process during boot.\n\nAdded in version 252.\n\nfstab.extra\nAdditional mounts to establish at boot. For details, see systemd-fstab-generator(8).\n\nAdded in version 254.\n\nvconsole.keymap, vconsole.keymaptoggle, vconsole.font, vconsole.fontmap,\nvconsole.fontunimap\nConsole settings to apply, see systemd-vconsole-setup.service(8) for details.\n\nAdded in version 253.\n\ngetty.ttys.serial, getty.ttys.container\nUsed for spawning additional login prompts, see systemd-getty-generator(8) for details.\n\nAdded in version 254.\n\nvmm.notifysocket\nConfigures an sdnotify(3) compatible AFVSOCK socket the service manager will report\nstatus information, ready notification and exit status on. For details see systemd(1).\n\nAdded in version 253.\n\nsystem.machineid\nTakes a 128bit ID to initialize the machine ID from (if it is not set yet). Interpreted\nby the service manager (PID 1). For details see systemd(1).\n\nAdded in version 254.\n", "subsections": [] }, "SEE ALSO": { "content": "systemd(1), kernel-command-line(7), smbios-type-11(7)\n", "subsections": [] }, "NOTES": { "content": "1. System and Service Credentials\nhttps://systemd.io/CREDENTIALS\n\nsystemd 255 SYSTEMD.SYSTEM-CREDENTIALS(7)", "subsections": [] } }, "summary": "systemd.system-credentials - System Credentials", "flags": [], "examples": [], "see_also": [ { "name": "systemd", "section": "1", "url": "https://www.chedong.com/phpMan.php/man/systemd/1/json" }, { "name": "kernel-command-line", "section": "7", "url": "https://www.chedong.com/phpMan.php/man/kernel-command-line/7/json" }, { "name": "smbios-type-11", "section": "7", "url": "https://www.chedong.com/phpMan.php/man/smbios-type-11/7/json" } ] }