DNS server query graphic report


Dear my Friend, here I will show you how to organize online monitoring system for DNS queries.

Most time in Telecom Domain business is necessary to measuring the DNS traffic and to check the performance of the service: how many queries has been successfully, how many faulty, what kind of queries the customers sending over different time. Also its necessary to check the type of DNS queries for security purpose to restrict free traffic using over dns-tunneling schemes. I will show how to optimize and turn DNS system to be using only for DNS service and send all required query logs to remote SYSLOG server into Corporate network behind Firewall. By default the DNS query log output is not configured in most systems as it required extra storage space, cause the log file can be growing very fast and it depend from DNS service capacity value – the amount of customer which is using it for Internet address resolving.

Continue reading “DNS server query graphic report” »



Custom Roles Using RBAC in the Solaris OS


Role Based Access Control (RBAC) started shipping with the Solaris 8 release of Sun Microsystems’ UNIX operating system. It can now be found within the Solaris 8, 9, and 10 releases. Simply defined, RBAC is a security tool to allow any non-root users access to complete tasks, scripts, and so on, with superuser privileges. For example, you have a second-shift operator who has been tasked to reboot some servers. RBAC can be used to set up permissions for the operator to carry out this task, which normally requires superuser authority. This is done simply by first creating a user, or defining an existing user. Next, a role and profile are created, and the profile is assigned to the role. After the profile has been assigned to a valid role, the role is now assigned to the OS user. The profile will have associated with it the task or script that is required to be run.

Continue reading “Custom Roles Using RBAC in the Solaris OS” »



NISplus Installation & Administration


NISplus Installation & Administration NISplus is network which allows you to store client information at a

central place where all the clients have access. This enables system

administrators to manage a group of servers from a central place.

This article discusses the nisplus objects , installation of servers ,clients and administration commands.

1.0  Introduction to NIS+

1.1  Objects in NIS+

1.2  Standard tables in NIS+

1.3  Groups in NIS+

2.0  Preparing for Install

2.1  Installing Server

3.0  Installing Client

4.0  Administration commands 

___________________________________

Continue reading “NISplus Installation & Administration” »



Subscribe

Enter your email address: