command
Resolving domains into human-readable IP addresses requires DNS IP addresses from your ISP. The DNS nature of resolving domain names into its equivalent IP addresses provides a lot of things to you and your ISP provider. DNS Nature One major thing that this DNS nature setup provides you is browsing convenience. Since DNS resolves domains [...]
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BIND DNS are nameservers responsible basically for resolving domain names or hostnames into their equivalent IP addresses. Websites or domain names have their own equivalent IP addresses that are usually managed and provided by the same website firms. If somebody is browsing a website from his browser, this website is being resolved, looked up and [...]
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What is BIND? BIND (Berkeley Internet Name Domain) is an implementation of the DNS (Domain Name System) protocols. BIND includes a DNS server (named), which resolves host names to IP addresses; a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating properly. When [...]
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Maybe some of your mailboxes are quite large (eg, over 10,000 messages) and they are taking a while to load in your mail reader. Perhaps they are taking up too much space on your disk. Archiving old messages to a separate, compressed mailbox is possible. Here’s a quick post on managing your mbox/imap mailboxes directly. [...]
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Complete these steps to configure Secure Shell (SSH) to the PIX Firewall: 1.Before a connection to the PIX is made through SSH, these prerequisites must be met: *The PIX must run version 5.2 or later. *The PIX must have a VPN Data Encryption Standard (DES) license, as indicated in the output of the show version [...]
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Yes. To enable the antispoofing feature on the PIX Firewall, issue the ip verify reverse-path interface int_name command. Note: This feature requires that all internal networks have routes to them on the PIX, and that a default route is also set. An example is shown below. ip verify reverse-path interface outside
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Useful commands for the Linux command line This short guide shows some important commands for your daily work on the Linux command line. arch Outputs the processor architecture. $ arch i686 cat Outputs the contents of a file. $ cat lorem.txt Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut [...]
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You must have a mail client (such as Microsoft Outlook) installed on the computer that runs SQL Server. Use the Corporate or Workgroup option for Microsoft Outlook 2000 (Microsoft Outlook 2002 does not have the Corporate or Workgroup option). To select the option, on the Tools menu, click Options, and then double-click the Mail Services [...]
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In order to change the global timeout setting for all connection with the CLI, refer to this command: asa(config)#timeout conn 01:00:00 This command can also change default timeout for several other connections, for example: xlate | conn | udp | icmp | rpc | h225 | h323 | mgcp | mgcp-pat | sip | sip-disconnect [...]
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To gain access from one internal segment to the Demilitarized Zone (DMZ ), configure the Adaptive Security Appliance (ASA) for natting. To preserve the packet and assure that natting is bypassed, a no nat statement with an Access Control List (ACL) must be configured. This is performed when the administrator does not want natting to [...]
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The PIX/ASA can be configured in order to capture packet information like a sniffer that can be later viewed. There are two ways to do this. In order to capture the packets and later download them to view in ethereal (pcap format), complete these steps: Create an access-list in order to match the traffic. Apply [...]
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Configure static Port Address Translation (PAT) on the PIX. Starting with PIX Software version 6.0, the PIX can be configured to translate ports destined to a single global IP address to multiple internal servers. One place this would be useful is if you only have a single IP address available from your ISP, but your [...]
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In order to create a user in the ASA, use the username command in global configuration mode. For example: hostname(config)#username password privilege In order to include or exclude user authentication for traffic through the ASA, use the aaa authentication commands with the include or exclude keywords in global configuration mode.
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With PIX/ASA version 7.0 and later, a new feature is introduced that allows the PIX to support hairpinning in a VPN environment. When the PIX/ASA is the hub in a VPN environment, this feature supports spoke-to-spoke VPN communications as it provides the ability for encrypted traffic to enter and leave the same interface. If the [...]
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By default, the security appliance allows IPsec packets to bypass interface access control lists (ACLs). In order to allow specific traffic for a VPN tunnel, apply interface access lists. Complete these steps (apart from the basic VPN configuration) on the PIX/ASA: 1. Use the no form of these commands in order to disable sysopt connection [...]
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