SnapGear 1.7.8 manual System, Time server, Password

Page 94

8. System

Time server

The SnapGear appliance can synchronize its system time with a remote time server using the Network Time Protocol (NTP). Configuring the NTP time server ensures that the SnapGear appliance's clock (in UTC) will be accurate soon after the Internet connection is established. If NTP is not used, the system clock will be set randomly when the SnapGear appliance starts up.

To set the system time using NTP, select the Set Time checkbox on the NTP Server Configuration page and enter the IP address of the time server in the Remote NTP Server field.

Password

The SnapGear appliance’s password is used to restrict access to the SnapGear appliance’s configuration web pages (WebAdmin) and the SnapGear appliance itself. The SnapGear appliance password is the ‘key’ to the security of your network and must be kept secret. SnapGear recommends choosing a password that is easy for you to remember but hard for unauthorized people to guess.

A potential security issue may be introduced by having a network-connected SnapGear appliance accessible, using the factory default password. To prevent this, the password for the SnapGear appliance should be changed when Setup Wizard is run or the Configuration web pages are accessed for the first time.

The SnapGear appliance password can be changed at any time using the configuration web pages by clicking Password in the System menu.

Warning

Enter root in the username field. The SnapGear appliance factory default password is default.

91

System

Image 94
Contents Rev May 2nd Table of contents Virtual Private Networking Introduction Terminology Term MeaningLAN Document conventions TCP/IPInstalling and configuring your SnapGear appliance Step ChapterLEDs Your SnapGear applianceLabel Activity Description SnapGear appliance back panels Network interconnections SnapGear appliance features Software featuresLAN link features Internet link featuresDial-in connection features Environmental features Static IP reset Getting startedNew Networks 10.0.0.0 10.255.255.255 10/8 prefix192.168.0.0 192.168.0.255 192.168.0/24 prefix Configuring the SnapGear appliance on your network Page Set up IP addresses Your SnapGear appliance was found on the network Multiple SnapGear appliances were found on the networkYour SnapGear appliance needs an IP address Administrative password SnapGear Management Console web administration pagesInitial setup using Linux Using linsetipUsing an existing local Dhcp or Bootp server Ping -b subnet broadcast address Arp -aConfiguring a new local Dhcp or Bootp server Edit the /etc/inetd.conf fileSnapGear Quick Setup LAN port quick setup LAN port quick setupISP connection quick setup ISP connection quick setupGetting started Configuring the PCs on your network TCP/IP properties Connecting to the Internet Physically connect modem deviceConnect to Internet cable modem Select Internet connectionConnect to Internet Adsl Connect to Internet direct Connect to Internet modemISP. The Password and Confirm Password fields must Field DescriptionAdvanced configuration option Internet failoverFollowing figure shows the failover configuration screen Failed connection Configure PCs to use SnapGear appliance Internet gateway Establishing the connectionDial-in server configuration Dial-in server configuration Dial-in setup Dial-in setupField Description Dial-in user accounts Dial-in user account creationFollowing figure shows the user maintenance screen Dial-in password error Account listRemote user configuration For Windows 95 and WindowsServer types Windows Connect to dialogue boxClick Next to continue 11 Connection availability 13 Remote access login screen Network configuration IP configurationNetwork configuration Advanced IP configuration Advanced IP configurationNetwork configuration Dhcp server configuration Dhcp serverNetwork configuration Traffic shaping Advanced networkingAdditional routes Incoming access FirewallIncoming access administration services Incoming access configurationExternal access to services Configure external access to servicesPort forwarding configuration Port forwardingOutgoing access Security group classes configurationOutgoing access settings Firewall rulesIntrusion detection and blocking configuration Intrusion detection and blockingPage Content filtering Content filtering Filtering levels and reporting Filtering Level Description1VPN tunneling using the Pptp server Virtual Private NetworkingPptp client setup Pptp client configuration Pptp server setup Enable and configure the Pptp VPN server Pptp server setupField Description Configuring user accounts for VPN server 4PPTP VPN server accounts screenVirtual Private Networking Configuring the remote VPN client VPN Pptp IP addressVirtual Private Networking VPN client setup Windows 95 and WindowsYour VPN client is now set up correctly Windows NT Network and dial-up connections This displays the Destination Address window Connecting the remote VPN client IPSec setup 12 IPSec setup13 Add new IPSec connection Virtual Private Networking 14 Automatic keying setup Aggressive mode phase 1 settings Technique DescriptionIPSec interoperability System PasswordTime server Diagnostics AdvancedFlash upgrade Reset buttonTechnical support Technical supportAppendix a LED status patterns LED Pattern Status ActionAccess Logging Appendix B System LogEth1 Default DenyEth0 PppCreating Custom Log Rules Forward Iptables -I Forward -j LOG -i eth+ -o eth+ -p tcp Administrative Access Logging Rate LimitingBoot Log Messages