Beginner’s guide: OSSIM Part 2

-
Image
Hope all of you are keeping well. Thank you all for the overwhelming support you people are giving me. So today we’ll deal with everything from basic OSSIM configuration to integrating different types of assets. Before we jump in to all of that I hope all of you are ready with installation. If not please visit my previous post, which is actually the first part. Beginner’s guide: OSSIM (Open Source Security Information Management) part 1 Make sure you have an active internet connection for your OSSIM. As you all know the Alienvault platform has five modules in it, which are the Asset discovery, vulnerability assessment, threat detection, behavioural monitoring and security intelligence. In simple words we add assets first, and then we’ll configure all those assets under each and every module of Alienvault respectively. If you're ready with everything mentioned in part 1, we can now move forward with the configurations. Here we’re just considering only OSSIM not USM....
13 comments

TCP/IP Suite

-


 
I hope all of you have already read my blog on OSI layers.

 http://pentesterblogs.blogspot.in/2016/07/networking-terminologies.html

Today we are going to discuss the TCP/IP suite. When compared with the OSI layer, we can see that few layers have been merged together in TCP/IP suite. Just like the OSI layers, TCP/IP suite is also made up of hierarchical protocols which are interactive and are not necessarily interdependent. OSI layer specifically defines functions of each layer in the model, whereas in TCP/IP suite, these independent protocols can be mixed and matched depending upon the need of the system. Just like the OSI model, upper level layers are supported by one or more lower level protocols in TCP/IP suite also.

Network Layer

Here none of other layer specifies any protocols. Instead it supports all standard and proproetay protocols. It simply can the physical connection between two end devices.

Internet Layer

It is an unreliable connection less protocol. It is used as a transmission mechanism by TCP/IP protocols. The transport layer support the internet layer, in turn the IP uses around four supporting protocols like ARP, RARP, ICMP, IGMP.

Transport Layer

The transport layer is always represented by two protocols ‘TCP/IP’. IP is host-host protocol, but since it is in internet layer the reliability is low. So the transport layer support the internet layer for reliable delivery of the data transmitted. UDP and TCP are the two protocols in the transport layer.

Application Layer

It is the combined form of application, presentation and session layer in OSI. It allows access to the network resources by translating, encrypting and compressing data if necessary.It also helps in session management.

Comments

Post a Comment

Popular posts from this blog

Beginner’s guide: OSSIM (Open Source Security Information Management) part 1

-
Image
As we always do, we’ll start from the scratch, the very basics. OSSIM is most widely used open source SIM tool. The appliance is developed by the Alienvault. Other than OSSIM there are lots of open source SIM like LOGalyze, Kustodian, Prelude etc. But out of these SIM tools, OSSIM is my favorite. It is much user friendly and very stable with respect to performance and resilience. They also have a very good documentation center which gives step-by-step instructions and very good community forum to get help Before we start, if you haven’t seen my blog post on SOC please go through it first. http://pentesterblogs.blogspot.in/2017/05/beginners-guide-how-to-setup-soc.html
Read more

Beginner’s guide: OSSIM Part 2

-
Image
Hope all of you are keeping well. Thank you all for the overwhelming support you people are giving me. So today we’ll deal with everything from basic OSSIM configuration to integrating different types of assets. Before we jump in to all of that I hope all of you are ready with installation. If not please visit my previous post, which is actually the first part. Beginner’s guide: OSSIM (Open Source Security Information Management) part 1 Make sure you have an active internet connection for your OSSIM. As you all know the Alienvault platform has five modules in it, which are the Asset discovery, vulnerability assessment, threat detection, behavioural monitoring and security intelligence. In simple words we add assets first, and then we’ll configure all those assets under each and every module of Alienvault respectively. If you're ready with everything mentioned in part 1, we can now move forward with the configurations. Here we’re just considering only OSSIM not USM....
Read more

Beginner’s guide: How to setup a SOC (Security Operations Center)

-
Image
Lot of people asks me to put something about setting up a SOC. So from today onwards, I’ll be posting articles about, how to set up a SOC. Unlike my other tutorials, SOC is not a specific tool/device, which you can simply ‘fit and forget’. So you need lots of patience and hard work to build one. As usual I’ll posting set-by-step instructions from planning to setting up the SOC.   But before that we need to learn some basics. We need all of you networking, system administration and security skills for this. As a minimum requirement to start, you need to have the following skills Networking basics (Preferred CCNA) Basic system administration (Linux and windows) Security administration (Firewall / UTM management) In other words if know how to configure networking devices, knows how to install package in windows and Linux, and knows at least how to open close ports in firewall, then we’re good to go. I’ve tried my best to write the article from the very basics stuff...
Read more