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[...]$ The new system call setsockopt() can also be traced using analysis tools such as strace: $ grep setsockopt tcp_stealth_server.strace 29392 setsockopt(3, SOL_TCP, 0x1a /* TCP_??? */, "This is mymagic ... Port scans for finding vulnerable services are nothing new, and port knocking as a defense has been around for a while, too. TCP Stealth tries to do something similar, but it takes a more ... TCP Stealth ... TCP Stealth hides open ports ... TCP Camouflage

_full_action = SUSPEND disk_error_action = SUSPEND tcp_listen_queue = 5 tcp_max_per_addr = 1 ##tcp_client_ports = 1024-65535 tcp_client_max_idle = 0 enable_krb5 = no krb5_principal = auditd You can also spread

LANDEV=eth0 05 06 echo -n "flushing all chains" 07 /sbin/iptables -F -t filter 08 /sbin/iptables -F -t nat 09 /sbin/iptables -F -t mangle 10 /sbin/iptables -X -t filter 11 /sbin

TIME CMD Root 1 0 0 19:05 ? 00:00:00 sleep 1000 Listing 2 Process on the Host $ ps -ef|grep sleep Cherf 30328 29757 0 20:44 ? 00:00:00 sleep 1000 Cherf 30396 3353

during a particular interval, the number of packets per second (kpps x1000), the kilobytes seen during the interval (kbytes ), megabits per second (mbps ), libpcap's reported packets (nic

_interval); 04 use Net::Statsd; 05 06 $Net::Statsd::HOST = 'localhost'; # Default 07 $Net::Statsd::PORT = 8125; # Default 08 09 my $t0 = [gettimeofday]; 10 11 my($one, $two, $three) = map { $_ x 4096

with the blockdev utility: $ sudo blockdev --getsize64 /dev/sdb 7000259821568 Listing 1 Server Drives 01 $ cat /proc/partitions 02 major minor #blocks name 03 04 7 0 91228 loop0 05

,BROADCAST,RUNNING,MULTICAST> mtu 1460 inet 10.0.0.2 netmask 255.255.255.255 broadcast 0.0.0.0 inet6 fe80::bfd3:1a4b:f76b:872a prefixlen 64 scopeid 0x20 ether 42:01:0a:80:00:02 txqueuelen 1000

:1500 Metric:1 RX packets:495050 errors:0 dropped:0 overruns:0 frame:0 TX packets:26284 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX

.255.255.255  broadcast 0.0.0.0         inet6 fe80::bfd3:1a4b:f76b:872a  prefixlen 64  scopeid 0x20         ether 42:01:0a:80:00:02  txqueuelen 1000  (Ethernet)         RX packets 11919  bytes 61663030 (58.8 Mi