index_P

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packages (compromised), finding with RPM 
packet sniffers
    examining SSH connection tunneled through HTTP 
    rpcapd remote capture device, using with 
    WinDump 
PacketFilter (PF) 
    authenticated gateway, creating 
    blocking packets used for operating-system probes 
    pf.conf file, editing
        defining table of IP addresses 
        macros 
        options 
        packet-filtering rules 
        traffic normalization rules 
    SnortSam, using with 
paging file (Windows), clearing at shutdown 
PAM (pluggable authentication modules) 
    pam_access module 
    pam_limits module 
    pam_stack module 
    pam_time module 
partitions (disk), imaging 
passwd program, SUID or SGID bit 
passwords  [See also authentication]
    command execution without password 
patch utility, applying grsecurity patch to kernel 
patching system security holes, automation of 
PaX (grsecurity) 
Pcap-formatted files, creating with Barnyard 
Perl modules, necessary for swatch tool 
Perl scripts, running through CGI interface 
Perl, sensor agents for SnortCenter 
permissions
    creating flexible hierarchies with POSIX ACLs 
    world- and group-writable 
PF  [See PacketFilter]
pfctl command 
PHP
    libraries for SnortCenter 
    programs, running through CGI interface 
    Sebek package, use by 
    using with ACID 
PHPlot 
PIDs (process IDs)
    listing for listening services 
    stunnel PID file 
ping program
    finding system MAC address 
    monitoring statistics from web server 
pipe action, swatch 
PIX firewall, using with SnortSam 
pluggable authentication modules  [See PAM]
pluto 
Point-to-Point Tunneling Protocol  [See PPTP tunneling]
poisioning the ARP cache 
policies, systrace 
    automated generation of 
POP, encrypting with SSL 
POP3 traffic, encrypting and forwarding with SSH 
PoPToP (PPTP server) 
    connecting to with Windows machine 
port forwarding
    honeyd, using with 
    httptunnel, using 
    SSH, using as SOCKS proxy 
    SSH, using for 
    stunnel, using 
port security (Ethernet switches) 
ports
    monitor port 
    open, listing for Windows systems 
    scanning for listening services 
    SnortSam port option 
    specifying for packets in Snort rules 
portscan and stream4 preprocessors, Snort  2nd 
POST method requests, scanning by mod_security 
PPP tunnels, setting up with PPTP tunneling 
PPP, using with SSH to create secure VPN tunnel 
PPTP (Point-to-Point Tunneling Protocol) tunneling 
priorities, for logging 
    configuring for syslog-ng 
process accounting 
    ac command 
    lastcomm command 
    summarizing with sa command 
processes
    increasing security with grsecurity 
    listing for listening services 
    listing for open files on Windows 
    listing for running services on Windows 
    memory address space layouts, randomization with grsecurity 
proftpd, using with MySQL authentication source 
promiscuous mode (network interfaces) 
    detecting to prevent intrusion 
    detection with chkrootkit 
    monitoring with rpcapd 
ProPolice 
protocol analyzers  [See Ethereal protocol analyzer ntop tool]
protocols
    for Snort rule application 
    specifying protocol for Snort rule 
    stateless 
proxies
    httptunnel connections through web proxy 
    squid proxy over SSH 
    SSH, using as SOCKS proxy 
    whois proxy, geektools.com 
proxy arp 
pseudo-TTY interfaces, PPP daemons operating over 
psk.txt file (racoon)