MyNetSec

for ip in 192.168.1.{1..254}; do for port in {21,22,80};do nc -zv -w 1 $ip $port &> /dev/null && echo "$ip at Port $port is up" || echo "$ip at port $port is down";done;done

How to add Xerox Docuprint 203A to Raspberry Pi CUPS server Xerox Docuprint 203A is a relatively old printer, in order to use raspberry pi as a print server for it, you need to obtain the right driver for linux arm for it to function properly. You can never get the linux driver for it, as this is a very old printer, however the brother printer HL-2030 driver is a perfect replacement for it Download it from here and import the PPD file and it will work magically well. Brother-HL-2030

sudo dscacheutil -flushcache sudo killall -HUP mDNSResponder say cache flushed

Check Point General Common Ports PORT TYPE SERVICE DESCRIPTION 257 tcp FireWall-1 log transfer 18208 tcp CPRID (SmartUpdate) 18190 tcp SmartDashboard to SCS 18191 tcp SCS to FW-1 gateway for policy install 18192 tcp SCS monitoring of firewalls (SmartView Status) Check Point SIC Ports PORT TYPE SERVICE DESCRIPTION 18209 tcp NGX Gateways <> ICAs (status, issue, or revoke). 18210 tcp Pulls Certificates from an ICA. 18211 tcp Used by the cpd daemon (on the gateway) to receive Certificates. PORT TYPE SERVICE DESCRIPTION 94 TCP Encryption IP protocols fwz_encapsulation (FW1_Eencapsulation) 137 Both Netbios-ns NETBIOS Name Service 138 Both netbios-dgm NETBIOS Datagram 139 Both netbios-ssn NETBIOS Session 256 TCP FW1 (fwd) policy install port FWD_SVC_PORT 257 TCP FW1_log FW1_log FWD_LOG_PORT 258 TCP FW1_mgmt FWM_SSVVC_PORT 259 TCP FW1_clientauth_telnet 260 UDP FW1_snmp FWD_SNMP_PORT 261 TCP FW1_snauth Session Authentication Daemon 262 TCP MDQ – mail deque...

[Expert@fw01:0]# cphaprob -a if Required interfaces: 3 Required secured interfaces: 1 Mgmt       Disconnected          non sync(non secured), multicast bond0      UP                    non sync(non secured), broadcast, bond Load Sharing bond1      UP                    non sync(non secured), broadcast, bond Load Sharing bond2      UP                    sync(secured), multicast, bond Load Sharing [Expert@fw01:0]# cphaconf show_bond -a                                       |Slaves     |Slaves |Slaves Bond name  |Mode               |State |configured |in use |required -----------+--------------...

Ubuntu (*buntu, Mint linux) Apt-get install apt-get update apt-get remove apt-get dist-upgrade apt-get purge Fedora/RHEL/CentOS yum install yum update yum remove Opensuse yast2 --install yast2 --remove zypper update Freebsd  pkg_add pkg_delete Gentoo emerge package # Install emerge -C package # Remove a package emerge -s keyword # Search for packages (package names only) emerge -u package # update the package Arch pacman -U package.pkg.tar.xz # Local package install pacman -Syy # Refresh package databases pacman -Syu # Update installed packages pacman -S package # Install package pacman -R package # Remove package

Rule Processing Order The rule base is processed in order. However, other things happen in the security policy besides checking your defined rules. This is the order of operations: Anti-spoofing checks Rule base Network Address Translation When you take into account the FireWall-1 global properties, you end up with the following order: Anti-spoofing checks "First" Implicit Rules Explicit Rules (except for the final rule) "Before Last" Implicit Rules Last Explicit Rule (should be cleanup rule) "Last" Implicit Rules Network Address Translation