Linux Security Cookbook [Electronic resources] نسخه متنی

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[D]
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[F]
[G]
[H]
[I]
[J]
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[L]
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[N]
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! (exclamation point)

escaping for shells

excluding commands in sudoers file

preventing file inclusion in Tripwire database

" (quotes, double), empty

"any" interface

"ring buffer" mode (for tethereal)

$! variable (Perl), for system error messages

%m format specifier to syslog to include system error messages
2nd

. (period), in search path

.gpg suffix (binary encrypted files)

.shosts file

/ (slash), beginning absolute directory names

/dev directory

/dev/null, redirecting standard input from

/proc files

filesystems

networking, important files for (/proc/net/tcp and /proc/net/udp)

/sbin/ifconfig

/sbin/ifdown

/sbin/ifup

/tmp/ls (malicious program)

/usr/share/ssl/cert.pem file

/var/account/pacct

/var/log/lastlog

/var/log/messages

/var/log/secure

unauthorized sudo attempts, listing

/var/log/utmp

/var/log/wtmp

: (colons), current directory in empty search path element

@ character, redirecting log messages to another machine

@otherhost syntax, syslog.conf

~/.ssh directory, creating and setting mode

~/.ssh/config file