Today Technology

Determine the number of computers you want to connect. The number of computers you're connecting will determine the type of network hardware you'll need. If you are connecting four or less computers, you'll just need a single router, or one switch if you don't need internet. If you're connecting more than four computers, you'll want a router and a switch, or just a switch if you don't need internet. Determine your network layout. If your installing a permanent LAN solution, you'll want to keep cable length in mind. CAT5 Ethernet cables should not run longer than 250 feet. If you need to cover larger distances, you'll need switches at regular intervals, or you'll need to use CAT6 cables. You'll need one Ethernet cable for each computer you want to connect to the LAN, as well as an Ethernet cable to connect the router to the switch (if applicable). Obtain the network hardware. To create a LAN, you'll need a router and/or a n...

The Quick Definition: Spanning Tree Protocol (STP) is used to prevent Layer 2 loops, commonly known as broadcast storms, from disrupting local area networks. STP virtually disconnects redundant links to prevent loops from occurring. If you’re tasked with managing bridges and switches, you’ll probably encounter spanning tree protocol (STP) during your configurations. STP is used to configure backup connections when linking between two bridges or switches fails. It provides the most efficient way to forward information between LAN segments, reducing performance issues — without losing redundancy. Root Bridge Election After you connect switches or bridges together, the first thing your hardware does is select a root bridge. This can be any one of the switches, but Cisco normally chooses the switch with the lowest MAC address. It does this because it’s likely the longest switch in service, but it could also be the slowest. This is why some network administrators choose to configure s...

oday’s business is non-stop. Employees need access to corporate systems and data wherever they are, around the clock. Only mobile devices provide the flexibility to allow employees that kind of constant connectivity. However, mobile devices introduce new kinds of security risks. Businesses need to consider using mobile device management (MDM) and enterprise mobility management (EMM) software to protect against these mobile device threats: 1. Operating system attacks Much like computers, mobile devices run a range of operating systems and versions, each with its vulnerabilities to attacks. Vendors provide patches, but when employees use their own devices, it’s up to every employee to download and install the upgrade. Protect against these threats by using your MDM software to prohibit connections from devices that aren’t using the latest, safest operating systems. 2. Application attacks If an application isn’t securely coded, it can have vulnerabilities such as storing passwords ...

Local Area Networks (LANs) and Wide Area Networks (WANs) have much in common, but the differences are enough to make them two separate acronyms in speech and in practice. Each one has its benefits and downsides, and these advantages and disadvantages can affect an organization’s productivity significantly. LAN connections can only operate in a local area which is usually not any bigger then a house, or a floor in an office building. Typically a LAN will consist of only a handful of clients, but can have upwards of a hundred.  One of the major advantages with LANs are the speeds they can reach. With a LAN, it isn’t uncommon to see technology ready for 1Gbps (1 gigabit per second). Example: If you were to download all 3 816 000 English articles off of Wikipedia it would take just over 13 hours to do so, where as a WAN would take 16 days to do the same. A LAN can operate up to 30x faster then a WAN  Another advantage to having a LAN connection is the cost. It is relatively...

The area of ​​information technology, especially in regions with technology company hubs such as the South and Southeast, even with the crisis, are not affected as impactfully as other areas. This reflects the growing need for technology resource management, and is a motivation for future professionals who are still in doubt about which area to pursue. If you are interested in one of these job trends in information technology, one of the recommendations is the Network Technologist course. Once completed, the student acts as a network administrator. Let's look at some general duties of a professional in this area. Network Administrator Roles In addition to working autonomously, a recent graduate in the south and southeast begins earning a base salary working in the support area of ​​at least $ 2,000, but this amount depends on the state and the company. As experience is gained the salary goes up, either within the company itself or with proposals from other companies, climbing...

Virus free apps on the iPhone - is iOS safe? The operating system of your iDevice is always protected against viruses. The closed environment with its hidden file system makes it much harder for hackers to place a virus than a Windows PC or Android smartphone. In addition, you only need to load your apps from the App Store. Apple scrupulously checks every software. New programs are released for use only when everything is OK. Unlike Windows and Android, iOS does not require you to be afraid of viruses and other malware that can damage or disable your system. However, your data is not always necessarily in a safe place on iOS. Most recently, in 2019, a  major security vulnerability was  discovered in iOS that gave hackers access to a host of sensitive data, including contact data and WhatsApp chats. The hacker's favorite: The jailbreak Manipulate the system by  jailbreaking , open hackers the door to your smartphone. The file system is open here a...