port
To disable flow control, use the flowcontrol receive off interface configuration command. This example shows how to turn on flow control on a port: Switch# configure terminal Switch(config)# interface gigabitethernet1/0/1 Switch(config-if)# flowcontrol receive on Switch(config-if)# end
Cisco flow control, port,
A technical paper is available that compiles all the existing documentation for Remote Filtering for Websense Enterprise and Websense Web Security Suite v6.3.1. This paper contains all the information needed to install, configure, and use Remote Filtering. Additional information has been added about deployment, the processing flow, and about VPN support. A complete troubleshooting process [...]
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The installation of Websense Reporting Tools includes a Log Server component that logs filtering data to a Microsoft SQL Server database. When Log Server is installed, the Websense installer prompts you for SQL Server connection information. If the connection values are inaccurate, or if the SQL Server instance uses a port other than the default, the [...]
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Connection to the SQL Server machine cannot be established after an upgrade to Report Central v2.7 when the SQL Server instance name is appended to the hostname or IP addess of the SQL Server machine. This issue may occur when you are creating a new database, registering an existing database, or editing the specifics of [...]
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Use the port security feature to restrict input to an interface. This feature limits and identifies MAC addresses of the workstations that can access the port. When secure MAC addresses are assigned to a secure port, the port does not forward packets with source addresses outside the group of defined addresses. If a secure port [...]
Cisco cisco, Cisco Catalyst 2970, Cisco Catalyst switches, configure, port, port security, Security, Switch Cisco Catalyst 3550, Switch Cisco Catalyst 3560, Switch Cisco Catalyst 3750, Switch Cisco Catalyst 4500, switchport security,
Trac is an issue/bug tracking system for software development projects. It has a built in wiki for documentation and a broseable interface to Subversion or other version control systems. All interaction is done with a a web browser which makes it easy and fast. It is programmed in Python. We will be installing Trac on [...]
Tech Guru Bug tracking system, configuration, configure, install, port, repositories, Trac,
The Advanced TCP/IP dialog will allow you to configure settings relative to DNS, WINS and specify multiple IP Addresses and Gateways. To bring up the Advanced TCP/IP Settings dialog, simply right click the desired connection from the Network Connections folder, and choose properties to open the Properties dialog of the selected connection. Now select Internet [...]
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If you are unfamiliar with SSH this is ok. This is a simple explanation to get you to a command prompt on your new server or existing server. Simply download a program called “putty.exe” if you are using Windows. If you are using MAC you will need to jump in to the shell and follow [...]
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By default, ssh listens for incoming connections on port 22. For a hacker to determine ssh is running on your machine, he’ll most likely scan port 22 to determine this. An effective method is to run ssh on a non-standard port. Any unused port will do, although one above 1024 is preferable. Many people choose [...]
Linux CHANGE PORT, NON STANDARD PORT, port, ssh,
This article uses postfix as the mail transport agent (MTA), as opposed to sendmail, the default MTA for CentOS. Dovecot is used to allow users to access their email by either imap or pop protocols. We assume a domain name of example.com which should be changed by the reader and can be either a real [...]
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This allows full access through our firewall to certain trusted sources (host PCs). Now we’ll look at how we can filter against protocols and ports to further refine what incoming packets we allow and what we block. Before we can begin, we need to know what protocol and port number a given service uses. For [...]
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We will use an example based approach to examine the various iptables commands. In this first example, we will create a very simple set of rules to set up a Stateful Packet Inspection (SPI) firewall that will allow all outgoing connections but block all unwanted incoming connections:
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I can use tcpdump to verify that encryption is working. Here is what a plain unencrypted POP mail session looks like. This is an abbreviated example showing only the initial three-way TCP handshake. You can do this yourself by firing up tcpdump, then checking mail. Ctrl+C stops it: # tcpdump port 110 15:04:49.050227 windbag.34348 > [...]
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 xinetd, the eXtended InterNET Daemon, is an open-source daemon which runs on many Linux and Unix systems and manages Internet-based connectivity. It offers a more secure extension to or version of inetd, the Internet daemon. xinetd performs the same function as inetd: it starts programs that provide Internet services. Instead of having such servers started [...]
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Many network enabled Linux applications don’t rely on themselves to provide restricted access or bind to a particular TCP port; instead they often offload a lot of this work to a program suite made just for this purpose, xinetd. The xinetd RPM is installed by default in Fedora Linux and uses /etc/xinetd.conf as its main [...]
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