Software Guidance & Assistance Review

The Fundamentals of SNMP Monitoring

Posted on January 26, 2012

The need for monitoring

Every organization wants to achieve its long-term goals like continuous growth, increased customer satisfaction, more profit, better goodwill, etc. But given today's current market scenario, it is not easy to maintain a strong foothold in the fast-paced industry. Proper maintenance of devices which the companies use regularly is very essential for achievement of these goals. Hence, SNMP monitoring is quite justified in this regard.

What do you mean by SNMP?

SNMP, also known as Simple Network Management Protocol, is a commonly used protocol in the field of network management. SNMP collects information from various network devices like printers, servers, network hubs, routers, switches, etc. and configures these on an Internet Protocol (IP) network. The entire functioning of the IT companies depends on network monitoring and reporting, for which SNMP is among the most efficient protocols for network monitoring.

Fundamentals of SNMP Monitoring

There is a software component (more commonly known as agent) installed in the system which supplies uninterrupted information through the SNMP to the computer administrators who constantly keep a vigil on the complex set of devices within the computer network.

There is certain parameter through which the SNMP monitors the devices linked in the network. When these parameters are matched, a definite path for enabling data communication is obtained.

How the SNMP actually functions?

SNMP is an automatic system for server monitoring. Hence, it is designed in such a way that it generates alerting messages regarding important events related to network health. When the SNMP detects anything abnormal in the network system, the automatic alarms get activated and these are communicated to the users in the form of flashy messages on the screen of the computer, or through email and SMS.

Some of the added features of the SNMP monitoring are:

  • The system is fully automated, so a lot of labor work is saved behind monitoring the complex devices manually.
  • It helps to prevent the over-utilization of the network circuit even if you are not working actively on the network.
  • The colors and designs of the alert messages displayed on the computer screen can be changed and set by the user as per his choice.

Why should you go for SNMP?

Even now, you might wonder why you should try SNMP for monitoring the network systems in your organization. The following advantages of making use of the SNMP for network monitor will answer your question:

  1. Administrators can get information which is simple and easy to understand. This aspect is very important for any company as it helps to handle multiple IP-based network devices more efficiently.
  2. You can monitor the performance of the network and audit its usage, hence allowing for detection of network faults or failure to access.
  3. SNMP facilitates preparation of various reports for use by the administrator, and enables proper decisions to be made in this regard.

Its versatility and ability to fulfill most of your network monitoring needs makes SNMP a popular favorite among experts.

Reasons Why Windows 7 Performs Slow

Posted on September 24, 2011

The article intends to educate customers about reasons that cause Windows 7 to perform slowly. The information has been compiled from various sources and is only for informational purposes. Other than the causes described in this article, your computer may perform slow due to internal technical glitches or unintentionally designed flaws in the operating system.

Windows 7, the most sought operating system among Windows and even Non-Windows users, has changed the computing experience of users who were frustrated with Windows Vista or upgraded from Windows XP or earlier versions. Though Windows 7 comprises a host of new features, updates, and tools etc., it tends to show its darker side by frequently performing slow. We all know that no hardware or software in this world is free from technical errors. Windows 7 is therefore no exception.

Are you one of those users who are facing slow performance issue in your Windows 7? Do you want to know what can cause it to behave like that? If yes, then the article is for you. Below are the common reasons due to which Windows 7 performs sluggish:

Faulty hardware piece attached to the computer - It often happens that a piece of hardware starts malfunctioning suddenly due to a number of reasons. You might not come to know about the hardware problem as it may not be apparent. You may only find your PC performing slow or behaving eerily. You can identify the hardware issue by rebooting your computer in the Safe Mode. Since Windows loads without drivers and software etc. in Safe Mode, you will get to know if it's a hardware or software issue.

Corrupted/faulty driver(s) - Drivers are small applications (software) that establish interaction between a hardware and software. These drivers always need to be updated with latest updates whenever these are available. Often, drivers go missing or corrupted due to several reasons such as virus infections, upgrading or updating Windows or hardware etc. To get rid of this problem, replace the faulty or damaged driver with new one. It is recommended to install the latest and compatible drivers for Windows and update them regularly. You can your hardware vendor's website for drivers. You can also check Microsoft's website for the list the compatible drivers with your hardware.

Virus infections - Did you ever imagine that viruses, spyware, malware like infections can ever make your Windows 7 perform slowly? If you never, then you must know that infections do make your computer behave oddly, slow performance is one among these odd behavior symptoms. These infections when enter your computer, eat up the memory of your computer, corrupt the files, load it with more viruses, spyware infections etc., and thus cause it to perform sluggish or shutdown, reboot in a continuous loop. It is recommended to run the full system scan from your antivirus program. If it finds infections in the scan results, command it to remove the infections. You should also update your antivirus program on a regular basis.

Software slagheap - Though Windows 7 is designed to run lots of and heavy applications simultaneously, however if you run more than required applications, you may find it performing sluggish. For example, you may have two antivirus programs simultaneously installed and operating in your computer. To get rid of this problem, you will be required to operate only the programs that you really need on your computer.

Invisible Spy Software – How to Protect Yourself

Posted on August 20, 2011

To understand the meaning of invisible or hidden spy software for a computer, you must first understand what a keystroke logger is. Usually referred to simply as a keylogger, the program tracks each and every letter, number, or symbol typed and organizes them into a database. The information can then later be seen by the administrator running the keylogger spy program. Many keylogger programs also take snapshots of the computer screen, which are also archived into a database to be viewed at a later time.

There are dozens of ways in which keyloggers may operate. The most invisible software is used legitimately by people who have installed spy programs to keep an eye on the spouse and kids. However, a large portion of keyloggers are in essence, viruses or Trojans looking to keep a record of the targeted and hacked computer.

Software-based Keylogger Operations

  • Hypervisor-based: a malware program hidden under the operating system
  • Kernel-based: a program that runs secretly appearing to be a driver file
  • API-based: hooks into the keyboard API, notifies the hacker each time a key is pressed
  • Form-grabbing based: these viruses steal information typed into a web browser
  • Packet analyzers: capturing unencrypted information over a network

Remote Access Keylogger Operations

  • Data is stolen and uploaded to a website, database, or FTP server
  • Data is e-mailed to the hacker
  • Data is stolen through wireless security by bugging the victim computer
  • Unwanted remote access to a local machine from another network

Features of Keyloggers

  • Clipboard logging: anything copied and pasted
  • Screen logging: snapshots of the computer screen are taken, often happens when the mouse is clicked
  • Capturing passwords: posing as a legitimate program to access password values from the PC
  • Complete record: this includes all keys, files, folders, passwords, internet browser, snapshots, and even recording text messages and search engine queries

Thieves have been known to install hidden gadgets at ATMs to record the keystrokes of users. Hidden spy cameras are often used in conjunction with the keylogger. With a keylogger and video, a thief knows who you are, your account number, and your pin. With that information he can then buy online or transfer money to offshore PayPal or other merchant accounts. Such invisible software and hardware running at an ATM undetected is rather rare as a camera would have to be disabled in order to install a thief's spy system.