P A M _ L O G I N
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This login version based on the sources from util-linux 2.9s. I have removed all non PAM stuff and added a lot of nice features from the shadow login program. This means, pam_login will read and honour /etc/login.defs. Random administrative things, such as setting the UID andGID of the tty are performed. The TERM environment variable is preserved, if it exists (other environment variables are preserved if the -p option is used). Then the HOME, PATH, SHELL, TERM, MAIL and LOGNAME environment variables are set. PATH defaults to /usr/local/bin:/bin:/usr/bin:. for normal users and to /sbin:/bin:/usr/sbin:/usr/bin for root if not other configured. The user's shell is then started. If no shell is specified for the user in /etc/passwd, then /bin/sh is used. If there is no directory specified in /etc/passwd, then / is used (the home directory is checked for the .hushlogin file described above). Version 3.14 add SELinux support, fixes order of PAM function calls, fixes problems with gcc 3.3, fixes problems with non-standard ttys on S390, fixes utmp/wtmp handling on 64bit architectures. If root logs in, initgroups is no longer called to avoid the problem, that root cannot login if there are network or other problems. As result, id root will only show the group root and no other one. Version 3.7 fixes a bug in the SIGHUP handling, which prevents login to exit in same cases. With Version 3.6, pam_login will not longer be killed if you terminate the login shell with Ctrl-\. |
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