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Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" st_snapshot \- calculate checksum and stat ownership and permissions of files .SH "SYNOPSIS" .IX Header "SYNOPSIS" \&\fIST_SUM=sha256sum\fR \fBst_snapshot\fR \fIpatterns\fR \fIhomepatterns\fR .SH "DESCRIPTION" .IX Header "DESCRIPTION" st_snapshot calculates checksums and stats ownership and permissions of critical system files. .PP This script is typically run in either root-mode or public-mode. Running this script in root-mode requires root priviliges. One is adviced to set up a dedicated user account for running this script in public mode. .PP In root-mode, the files snapshot_root.list and snapshot_root.homelist are typically passed as arguments. These pattern files are read by the script and contain names of files and directories; listing a directory in such a pattern file is equivalent to listing all files which live in the directorytree with this directory as root. .PP snapshot_root.list could e.g. read .PP .Vb 10 \& # snapshot_root.list \- files and directories we wanna get \& # monitored: we wanna get a note once these files, or any file \& # under these directories, gets created, gets rm\-ed, gets \& # permissions or contents changed. these notices will not \& # include the possibly secret contents of these files \& # \& # this file gets read by st_systraq \& /etc/group \& /etc/gshadow \& /etc/hosts.allow \& /etc/hosts.deny \& /etc/hosts.equiv \& /etc/lilo.conf \& /etc/passwd \& /etc/postfix/server.pem \& /etc/shadow \& /etc/skel \& /etc/ssh .Ve .PP Equivalent files snapshot_pub.list and snapshot_pub.homelist should be on the system. These files should contain all worldreadable to be monitored files. This allows for running this script as root \fIonly\fR in those cases where it's needed: when reading files, readable for root only. .PP The homelist files contain files and directories which should get monitored for every homedirectory on the system. snapshot_pub.homelist could e.g. contain: .PP .Vb 9 \& .profile \& .cshrc \& .tcshrc \& .login \& .logout \& .bash_profile \& .bashrc \& .exrc \& .nexrc .Ve .PP As a special case, when the environment variable \s-1ST_OPHOMES\s0 is set to a non-empty string (typically when running in public mode), we stat the permissions on all homedirectories themselves. .PP The produced snapshot is printed to stdout. The output when running in public mode could look like: .PP .Vb 10 \& # ownership and permissions of homedirs \& drwxr\-xr\-x root root /bin \& drwxr\-xr\-x root root /dev \& drwxr\-sr\-x root staff /home \& drwxr\-sr\-x joostvb joostvb /home/joostvb \& drwxr\-xr\-x root root /usr/sbin \& drwxr\-xr\-x root root /var \& # sha256sum of critical pub files \& 4d3cd13d6dbc10e2e3ccb9477cbc9eb9b76302454c276d5771ae0b10a5fbb4d2 /home/joostvb/.ssh/id_rsa.pub \& eb8d83e0246f761a21bdfb13a03fac634ed7c3b7dde4c2efddd7b2838d32596f /var/qmail/alias/.bashrc \& 4e371f9a11f5a2464d3d5c952e58e24f73b377d33767ed93b2082fcb59a647fe /etc/zlogin \& # ownership and permissions of critical pub files \& \-rw\-rw\-r\-\- joostvb joostvb /home/joostvb/.ssh/id_rsa.pub \& \-rw\-r\-\-r\-\- joostvb joostvb /home/joostvb/.ssh/authorized_keys .Ve .SH "ENVIRONMENT" .IX Header "ENVIRONMENT" \&\s-1ST_OPHOMES\s0 \- non-empty in case permissions on all homedirectories should be printed .PP \&\s-1ST_SUM\s0 \- command for calculating file checksums. E.g. sha256sum, sha512sum, sha384sum, sha224sum or sha1sum. .SH "SEE ALSO" .IX Header "SEE ALSO" The systraq manual. .SH "COPYRIGHT" .IX Header "COPYRIGHT" Copyright (C) 2001, 2002, 2003, 2004, 2008 Joost van Baal .PP This program is free software; you can redistribute it and/or modify it under the terms of the \s-1GNU\s0 General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. .PP This program is distributed in the hope that it will be useful, but \s-1WITHOUT ANY WARRANTY\s0; without even the implied warranty of \&\s-1MERCHANTABILITY\s0 or \s-1FITNESS FOR A PARTICULAR PURPOSE.\s0 See the \&\s-1GNU\s0 General Public License for more details. .PP You should have received a copy of the \s-1GNU\s0 General Public License along with this program (see \s-1COPYING\s0); if not, check with http://www.gnu.org/copyleft/gpl.html or write to the Free Software Foundation, Inc., 59 Temple Place \- Suite 330, Boston, \s-1MA\s0 02111, \s-1USA.\s0 .SH "AUTHOR" .IX Header "AUTHOR" Joost van Baal-IliX