- Mar 09, 2012 A device that supports remote Syslog-ing. In this article we will use DD-WRT as an example. Syslog uses port 514 UDP, and as such it must be reachable from the device sending the information to the collector. Some basic networking know how is assumed. Setup the Syslog collector. In order to collect the events, one needs to have a Syslog server.
- This article explains how to use MacOS X Lion (possibly earlier versions) as a syslog server for RouterOS. First, prep the built in syslog daemon to add a listener on the network - by default it only listens on sockets.
- Download Syslog Server Mac Software. VShell Server for UNIX v.3.5 VShell SSH2 server is a secure alternative to Telnet and FTP on Windows and UNIX providing strong encryption, robust authentication and data integrity. Fine-tune your environment with precision control and a selection of authentication methods.
MAC address
A Media Access Control (MAC) address is a 48-bit (6 bytes) address that is used for communication between two hosts in an Ethernet environment. It is a hardware address, which means that it is stored in the firmware of the network card.
Setting up syslog to log remotely is simple. On the system for which you want to receive the log entries, configure syslog to start with the -r option, which enables it to receive remote log. Another free syslog server software, WhatsUp Gold Syslog Server is a straightforward way to manage your syslog needs. It monitors syslog messages and provides real-time views into message data as well as filters to help you sort through the approximately 6,000,000 messages it can process per hour.
Every network card manufacturer gets a universally unique 3-byte code called the Organizationally Unique Identifier (OUI). Manufacturers agree to give all NICs a MAC address that begins with the assigned OUI. The manufacturer then assigns a unique value for the last 3 bytes, which ensures that every MAC address is globaly unique.
MAC addresses are usually written in the form of 12 hexadecimal digits. For example, consider the following MAC address:
Every hexadecimal character represents 4 bits, so the first six hexadecimal characters represent the vendor (Hewlett Packard in this case).
How to find out your own MAC address?
If you are using Windows, start the Command Prompt (Start – Programs – Accessories – Command Prompt). Type the ipconfig/all command and you should see a field called Physical Address under the Ethernet adapter settings:
If you are using Linux, type the ifconfig command. You should see your MAC address referred to as HWaddress.
IP address
An IP address is a 32-bit number that identifies a host on a network. Each device that wants to communicate with other devices on a TCP/IP network needs to have an IP address configured. For example, in order to access the Internet, your computer will need to have an IP address assigned (usually obtained by your router from the ISP).
An IP address is usually written in the form of four decimal numbers seperated by periods (e.g. 10.0.50.1). The first part of the address represents the network the device is on (e.g. 10.0.0.0), while the second part of the address identifies the host device (e.g. 10.0.50.1).
In contrast to MAC address, an IP address is a logical address. It can be configured manually or it can be obtained from a DHCP server.
Syslog Tool
The term IP address is usually used for IPv4, which is the fourth version of the IP protocol. A newer version exists, IPv6, and uses 128-bit addressing.
Private IP addresses
There are three ranges of addresses that can be used in a private network (e.g. your home LAN). These addresses are not routable through the Internet.
Private addresses ranges are:
- 10.0.0.0 – 10.255.255.255
- 172.16.0.0 – 172.31.255.255
- 192.168.0.0 – 192.168.255.255
How to find out your IP address
If you are using Windows, start the Command Prompt (Start – Programs – Accessories – Command Prompt). Enter the ipconfig command. You should see a field called IP Address:
Linux users:
Enter ifconfig. You should see a field called inet addr:
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Network devices like firewalls, routers, and servers generate thousands of logs about events every single day. Auditing syslogs helps organizations monitor network activity in real time and get alerted about suspicious events. The built-in syslog server in EventLog Analyzer collects syslogs from network devices and provides in-depth insights into security events.
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