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Diffstat (limited to 'chapter07/createfiles.xml')
| -rw-r--r-- | chapter07/createfiles.xml | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/chapter07/createfiles.xml b/chapter07/createfiles.xml index 2b752b944..ec4b0eee2 100644 --- a/chapter07/createfiles.xml +++ b/chapter07/createfiles.xml @@ -215,8 +215,23 @@ chmod -v 600 /var/log/btmp</userinput></screen> failed login attempts. The <filename>/var/log/btmp</filename> file records the bad login attempts.</para> - <note><para>The <filename>/run/utmp</filename> file records the users that - are currently logged in. This file is created dynamically in the boot - scripts.</para></note> + <!-- systemd no longer creates this --> + <note revision='sysv'><para>The <filename>/run/utmp</filename> file + records the users that are currently logged in. This file is created + dynamically in the boot scripts.</para></note> + + <!-- AFAIK they are not vital for system function, users requiring such + info should rely on systemd-logind or elogind or some custom PAM + module. Maybe we can stop to create them at all. --> + <note> + <para> + The <phrase revision='sysv'><filename>utmp</filename>, + </phrase><filename>wtmp</filename>, <filename>btmp</filename>, and + <filename>lastlog</filename> files use 32-bit integers for timestamp + and they'll be fundamentally broken after year 2038. Many packages + have stopped using them and other packages are going to stop using + them. Do not rely on the contents of them for anything. + </para> + </note> </sect1> |