Adding New Virus Definitions to Symantec Endpoint Protection Manager

Source: From the link:
http://www.symantec.com/business/security_response/definitions/download/detail.jsp?gid=savce

To Download the .JDB Rapid Release definitions:



   1. In a browser, go to the following URL: http://www.symantec.com/business/security_response/definitions/download/detail.jsp?gid=rr
   2. Download the available .JDB file and save the file to the Windows desktop.


To use the .JDB file to update definitions for Symantec Endpoint Protection Manager:

   1. After downloading, rename the file extension from ".zip" to ".jdb". (Most browsers detect the file type and automatically change the extension. This must be changed back to .JDB for use in the SEPM.)
   2. Copy the .JDB file to the "C:\Program Files\Symantec\Symantec Endpoint Protection Manager\data\inbox\content\incoming" (The location listed in this line is the default installation location and is presented as an example only).
   3. In a period of time from 30 seconds to a minute, the .JDB file will be processed. As the .JDB file is processed, all files and subfolders are removed from the "Incoming" folder.




Comments: The file was having the extension jdb and there was no need to rename it.

Find out active IPs in a Linux LAN

If you are on a LAN and wish to find out which computers in it currently have access to that certain LAN, you can use the following command:
for ip in $(seq 1 254); do ping -c 1 192.168.1.$ip>/dev/null; [ $? -eq 0 ] && echo “192.168.1.$ip UP” || : ; done
This will ping each computer on the 192.168.1.x subnet one time, with a one second interval between pings. The output should be something like
192.168.1.1 UP
192.168.1.17 UP
192.168.1.24 UP
…
UPDATE:
Alternatively, you can use netdiscover:
sudo apt-get install netdiscover
netdiscover -r 192.168.1.0/24
This will scan all the computers in that particular address range and present the active ones in a table that also provides a MAC address and a MAC Vendor line.

Source: www.tips4linux.com