Showing posts with label SERVER. Show all posts
Showing posts with label SERVER. Show all posts

Monday, August 15, 2022

Security Cameras in Medical Collage

 Security Cameras in Medical Collage

CCTV surveillance is now an integral part of the overall security apparatus across the world. The university has a significant responsibility to take appropriate steps to protect personal privacy and civil liberties when it operates security camera systems. When successfully deployed, security camera systems enhance overall campus safety and security, deter crime, and otherwise support the protection of people and property. A security camera is defined as video surveillance technology that records people’s activities in order to detect, deter, prevent, or investigate crime or other threats to public safety.

In a bid to improve the quality of medical education in the country, regulatory body NMC has issued an advisory recommending installation of cameras in the premises of all medical colleges and institutions. This is in continuation of the digital mission mode project being run by the National Medical Commission (NMC) and the erstwhile Medical Council of India to ensure and monitor availability of adequate number of patients teaching faculty and also to monitor regular teaching programs in the medical colleges. This is a step forward towards developing a robust monitoring mechanism and providing for transparency and accountability in functioning of medical colleges, official sources said.

If utilised properly, this would also be a way forward for digitisation of the assessment process for approvals being granted to medical colleges either for enhancement of under graduate courses or starting or enhancement of postgraduate courses, they said. "Use of such technology and artificial intelligence would make assessments and instructions transparent and an ongoing process instead of the current one time process," an official source said.

The most important things they can incorporate on all IP equipment are much more tangible—Trusted Platform Module (TPM) and National Defense Authorization Act (NDAA) complianceThe primary concern should be that the vendor is providing a system that is secure and in compliance with ISO 20243, particularly when it comes to assurances regarding the supply chain. Today more than ever, it is essential that video appliances are held to an IT standard, including TPM and NDAA compliance. The importance of making these properties a top priority has become a standard for end-customer expectations.
But installing a CCTV camera doesn’t mean you’re safe; here is a list of seven things you ought to consider before securing your territory with closed-circuit television cameras:

#1) Deciding how you’ll be monitoring the system

If you decide to monitor your system using the Internet, getting an IP Address for your Digital Video Recorder (DVR) or Network Video Recorder (NVR) will equip it to survey and record easily; an Ethernet cable carries all information via the Ethernet witch.

#2) Determining the number of Closed Circuit Television Cameras required

Depending upon the nature of your requirement and the expanse of the area you want to survey, decide on the number of cameras required to ensure complete security. As per the NMC guidelines, the medical colleges have been advised to install cameras at OPDs (depending upon number of OPDs in the college). The cameras should cover the medicine, surgical, gynaecological, paediatrics and orthopaedics OPDs, the highly-visited OPDs in a medical institution.

#3) Positioning the CCTV cameras

Cameras if visible could caution the trespasser. Thus most people prefer having clandestine cameras to having exposed and evident ones! Contemporary CCTV cameras can be easily hidden from view by being in the most exquisite of crevices and clefts in the wall; these places also offer the advantage of protecting the cameras from extreme weather conditions such as hailstorms, high-speed winds, and rains. One camera needs to be installed at the main entrance of the hospital and college and two cameras at the patient registration counter. All lecture theatres in the medical college should be equipped with cameras.

The pre-anaesthesia area, recovery area in the operation theatre complex, faculty lounge and attendance marking areas, anatomy dissection hall, physiology laboratory, biochemistry UG laboratories, pharmacology laboratory, patient attendant waiting area and emergency and casualty ward need to be equipped with cameras, the NMC stated.

#4) Placing the DVR/NVR

It is paramount to secure the digital video recorder (DVR) or the network video recorder (NVR). If you lose the DVR or the NVR to the trespasser, needless to say, you lose all the money you spent on your CCTV camera along with your stolen valuables! If you place your DVR or NVR centrally, you can minimize your cabling cost and reduce the complexity of your closed-circuit television system.

#5) Deciding on power backup of CCTV Camera

The constant power supply would ensure incessant surveillance. Thus make sure you have both constant power supply and a reliable power backup in case of power cuts to ensure security at all times.

#6) Deciding how you’ll be create Secure Network system

NDAA compliance assures that the video recording appliance does not include System on Chip (SoC) or other components capable of processing software from banned Chinese companies. All servers and workstations use NDAA-compliant chipsets as a standard. Having the NDAA seal of approval guarantees that the product is fully supported under those regulations as federal agencies have banned all non-compliant equipment from RFQ’s and projects. Those companies not adhering to NDAA standards are unable to work with any federal organization via a published blacklist. Business and commercial entities are also following suit, as they have privacy concerns consistent with the federal government as well.

Trusted Platform Module enhances computer privacy and security. Consider it a hardware-level security measurement to protect your video recording device from malicious attacks. Once the TPM module is enabledthat physical chip is now permanently tied to that specific server or workstation and cannot be moved to any other system. TPM-based microchips on system boards offer another layer of hardware and intrusion security.

This software agnostic TPM module is utilized for high-level security file encryption, network security, and password management. These modules are secured by cryptographic algorithms and ensure total system security for the most sensitive data on your video recording system. As a matter of fact, TPM modules are a standard requirement from every video management software manufacturer and independent software vendor in the security marketplace.

#7) Testing the CCTV Camera system

After you’re done with the installation process, it is very important to have a test run. Any problems that you might face with your closed-circuit television system, can be best fixed before it’s too late – a stitch in time, does save nine!

#8) Maintaining the CCTV-cameras

Best practices include cleaning the cameras on a monthly basis to rid them of any dirt, cobwebs. Timely replacement of the cables used is also advised to keep the systems from any potential failures in the most crucial of hours.

#9) "Cameras never lie". But how will one know, unless one 'sees' what the camera 'saw'?

Encourages all medical collage authority of CCTV to audit their own CCTV video footage as a standard operating procedure. Regular auditing of CCTV footage by the public means that the Police/LEA have more 'eyes' working for them through crowdsourced surveillance. This enables the Police/LEA in identifying potential threats and dangerous situations before they occur. Also, in the case of a crime, if a standardized incident report is delivered to the Police/LEA by the affected party in PowerPoint carrying the entire story (what, where, when, why, who, how, and the video clip), crime will get solved faster.

The aim is to bring the colleges under the National Medical Commission’s surveillance, protect doctors from any attack during duty hours. There are a lot of brands in the market selling closed-circuit television cameras. The best brands include Infinova, Hanwha Techwin, Avigillon, Pelco, Axis, NUUO, Milestone and GVD etc Solution for reliable CCTV cameras. To get free consultation contact us.



সুষ্ঠ প্রশাসন রোগীস্বার্থকে সামনে রেখে মেডিক্যাল কলেজগুলির দৈনন্দিন কাজে সরাসরি নজরদারি চালাতে উদ্যোগী ন্যাশনাল মেডিক্যাল কমিশন। আর এই জন্য দেশের সব মেডিক্যাল কলেজের মূল প্রবেশদ্বার-সহ ২৫টি স্থানে সিসিটিভি বসানোর ফরমান জারি করল কমিশন। কমিশনের এই সিদ্ধান্তকে বেনজির বলেই মনে করে শিক্ষক-চিকিৎসকদের বড় অংশ। দেশের সব সরকারি বেসরকারি মেডিক্যাল কলেজ হাসপাতালে সিসিটিভি (CCTV) বসানোর নির্দেশ জারি করা হল। আর এই নির্দেশকে ঘিরে চিকিৎসকদের মধ্যে শুরু হয়েছে বিতর্ক। ন্যাশনাল মেডিক্যাল কমিশনের (The National Medical Commission) তরফে একটি অ্যাডভাইজারি করে দেশের সব রাজ্য সরকারকে মেডিক্যাল কলেজ হাসপাতালের মূল প্রবেশদ্বার-সহ রোগীর নাম নথিভুক্ত করার কাউন্টার, আউটডোর এমনকী প্রতিটি ফ্যাকাল্টির শিক্ষক, চিকিৎসকগণ যে জায়গায় দৈনিক উপস্থিতি স্বাক্ষর করেন সেই জায়গাতেও সিসিটিভি বসাতে প্রস্তাব দেওয়া হয়েছে। জাতীয় মেডিক্যাল কমিশনের আদেশনামায় একটি মেডিক্যাল কলেজের অন্তত ২৫টি স্থানকে নির্ধারিত করা হয়েছে যেখানে সিসিটিভি বসাতে হবে। ক্যামেরা IP সম্বলিত ও 4K মাত্রার বিশ্লেষণ যোগ্য সংরক্ষক যন্ত্র সাথে 4K  মাত্রার বিশ্লেষণ যোগ্য প্রদর্শিত  মাধ্যম ব্যবহার করা। 

যেসব স্থানকে সিসিটিভি বসানোর জন্য চিহ্নিত করা হয়েছে তার মধ্যে উল্লেখযোগ্য হল : মেডিসিন, শল্য চিকিৎসা, স্ত্রী শিশুরোগ এবং অস্থিরোগের আউটডোর। ) রোগীর অ্যানাস্থেশিয়া জ্ঞান ফিরিয়ে আনার এলাকা। ) প্রতিটি বিভাগের ফ্যাকাল্টি লাউঞ্জ এবং উপস্থিতি এলাকা। ) লেকচার থিয়েটার। ) মেডিক্যাল পড়ুয়াদের অ্যানাটমি ডিসেকশন হল। ) ফিজিওলজি, বায়োকেমিস্ট্রি ল্যাবরেটরি। ) প্যাথলজি মাইক্রোবায়োলজি ল্যাবরেটরি। ) ফার্মাকোলজি ল্যাবরেটরি। ১০) রোগীর অপেক্ষার স্থান। ১১) জরুরি ক্যাজুয়ালটি ওয়ার্ড।

ন্যাশনাল মেডিক্যাল কমিশনের চেয়ারম্যান ডা, সুরেশচন্দ্র শর্মা তাঁর প্রস্তাবে নির্দিষ্ট করে জানিয়েছেন, সিসিটিভিগুলি যেন ডিভিআর উচ্চক্ষমতার নেটওয়ার্ক যুক্ত হয়। সাংসদ তথা চিকিৎসক সংগঠন আইএমএ তরফে শান্তনু সেন বলেন, ‘‘কিছু অসাধু রয়েছেন। তাঁদের নিয়ন্ত্রণ করতে কমিশনের এই পদক্ষেপ।’’ জাতীয় মেডিক্যাল কমিশনের এই প্রস্তাবে চিকিৎসক-অধ্যাপকদের একাংশ যেমন অসন্তোষ প্রকাশ করেছে তেমনই আরেকাংশ বলছে, এই নিয়ম আগেই ছিল। কলকাতা মেডিক্যাল কলেজের অধ্যক্ষ ডা. রঘুনাথ মিশ্র বিষয়টিকে গুরুত্ব দিতে নারাজ। তাঁর কথায়, কলেজ বা হাসপাতালের কোনও জায়গা সিসিটিভিতে দেখতে না পেলে মাঝে মধ্যে ফোন করে।

মেডিক্যাল কলেজগুলির দৈনন্দিন কাজে সরাসরি নজরদারি চালাতে উদ্যোগী ন্যাশনাল মেডিক্যাল কমিশন। দেশের সব মেডিক্যাল কলেজের মূল প্রবেশদ্বার-সহ ২৫টি স্থানে সিসিটিভি বসানোর ফরমান জারি করল কমিশন যেটা খুব ভালো প্রস্তাব, কিন্তু পাশাপাশি ক্যামেরা চলছে কিনা এবং তা ঠিকমতো সংরক্ষিত হচ্ছেকিনা তা দেখার জন্য প্রতিদিন ভিডিও চিত্র নিরিক্ষণ করা উচিত। IP ক্যামেরা বর্তনীতে যেন এই ভিডিও প্রতিলিপি সুরক্ষিত থাকে সেবিষয়ে নজর রাখতে সেই ধরণের IP ক্যামেরা DVR / NVR  বসানো উচিত। আপনাকে দেখতে হবে সেই IP দ্রব্যটি যেন NDAA অনুমোদিত হয়।  


Tuesday, February 1, 2022

Difference between Hub and Switch

Difference between Hub and Switch 

Network devices, or networking hardware, are physical devices that are required for communication and interaction between hardware on a TCP/IP network.

Here is the common network device list:

·        Hub

·        Switch

·        Router

·        Bridge

·        Gateway

·        Modem

·        Repeater

·        Access Point

In 2006 The Network Hub is invented at Vancouver, British Columbia, Canada. A hub is a device that connects multiple Ethernet devices on one network and makes them act together as a single network. A hub does not gather information and input in one port results as an output in all ports on the network. A switch is a networking device that performs the same job as the hub but are considered as a more intelligent hub as it gathers information about the data packets it receives and forwards it to only the network that it was intended for. A Hub is a layer-1 device and operates only in the physical network of the OSI Model.

Hubs and switches are devices that are used in data networking on the internet. These devices are used in order to connect two or more networking ports in order to transfer data along the connection. Though the primary job of hubs and switches are the same, to forward data to different networks, they work in different ways.

A hub, also known as Ethernet hub, active hub, network hub, repeater hub or multiport repeater, is a device that connects multiple Ethernet devices on one network and makes them act together as a single network. A hub has multiple input/output (I/O) ports, in which an input in one port results in it being an output in all the other ports, except the port where it was input. In layman’s terms, a hub connects many networks into one, where a data packet that is sent by one networks, is copied and pasted to all network ports, making it so that every port can see that data packet. A hub works on the physical layer or layer 1 of the Open Systems Interconnection (OSI) model. It also works as a data collision detector, sending a jamming signal to all ports if it detects collisions at one port.

It is a simple device that does not examine the data it receives or sends, while just duplicating the data and making it visible for all. The receiving port that has to decide if the data packet is actually intended for it by checking the address on the packet, before passing it on further. Since hubs only have one collision domain, constant collisions occur. Unnecessary traffic is sent to all devices on the network. Originally hubs were popular due to the high price of switches, but switches are not so expensive these days. Hubs are slowly becoming obsolete in many practices, but are still used in special circumstances.

A switch is a networking device that performs the same job as the hub; it connects network segments or devices making them act as a single network. Switches are commonly referred to as a multi-port network bridge that process and routes data on a data link layer or layer of the OSI model. Switches can also process data at the network layer (layer 3) or higher layers and are known as multilayer switches.

Switches are considered as a more intelligent hub as it gathers information about the data packets it receives and forwards it to only the network that it was intended for. When a switch receives a data packet, it examines the data address, the sender and the receiver and stores the memory, after which it then sends the data to the device that the data is meant for.

Most modern Ethernet Local Area Networks (LANs) operate on switches. Small offices and residential devices commonly use single layer switch, while bigger applications require multilayer switches. The switches use a bridge or a router in order to split a larger collision domain to smaller collision domains, resulting in lesser collisions.  Each port has an individual collision domain, allowing computers to maintain dedicated bandwidth.

Hub

Switch

Definition

A hub is a connection point for different segments of a LAN. It contains multiple ports and when it receives a packet of information at one port, it copies this packet to all segments of the LAN so that it can be viewed by all ports.

A switch is multi-port networking device that connects network devices together. A switch operates at the data link layer (layer 2) of the OSI model. A switch filters and then forwards data packets between networks.

Layer

Physical Layer (Layer 1)

Data Link Layer (Layer 2)

Spanning-Tree

No Spanning-Tree

It allows many Spanning-Trees to take place.

Type of Transmission

Broadcast

Broadcast, Uni-cast & Multicast.

Table

No MAC table. Hubs cannot learn MAC address.

Stores MAC address and maintains address.

Used in

LAN (Local Area Networks)

LAN (Local Area Networks)

No of Ports

4

24-48 depending on type of switch.

Collision

Occurs

No collision occurs

Collision Domain

One collision domain

Every port has its own collision domain.

Transmission Mode

Half duplex

Full duplex

Types of Hub

There are three types of the hub that are given below:

1.  Passive Hub

2.  Active Hub

3.  Intelligent Hub

Passive Hub: The passive hubs are the connection point for wires that helps to make the physical network. It is capable of determining the bugs and faulty hardware. Simply, it accepts the packet over a port and circulates it to all ports. It includes connectors (10base-2 port and RJ-45) that can be applied as a standard in your network. This connector is connected to all local area network (LAN) devices. Additionally, the advanced passive hubs have AUI ports, which are connected as the transceiver according to the network design.

Active Hub: As compared to a passive hub, it includes some additional features. It is able to monitor the data sent to the connected devices. It plays an important role between the connected devices with the help of store technology, where it checks the data to be sent and decides which packet to send first.

It has the ability to fix the damaged packets when packets are sending, and also able to hold the direction of the rest of the packets and distribute them. If a port receives a weak signal, but still it is readable, then the active hub reconstructs the weak signal into a stronger signal before its sending to other ports. It can boost the signal if any connecting device is not working in the network. Therefore, it helps to make the continuity of services in LAN.

Intelligent Hub: It is a little smarter than passive and active hubs. These hubs have some kinds of management software that help to analyze the problem in the network and resolve them. It is beneficial to expend the business in networking; the management can assign users that help to work more quickly and share a common pool efficiently by using intelligent hubs. However, it offers better performance for the local area network. Furthermore, with any physical device, if any problem is detected, it is able to detect this problem easily.

The important applications of a hub are given below:

·        Hub is used to create small home networks.

·        It is used for network monitoring.

·        They are also used in organizations to provide connectivity.

·        It can be used to create a device that is available thought out of the network.

Advantages of Hub

1. It provides support for different types of Network Media.

2.  It can be used by anyone as it is very cheap.

3.  It can easily connect many different media types.

4.  The use of a hub does not impact on the network performance.

5.  Additionally, it can expand the total distance of the network.

Disadvantages of Hub

1. It has no ability to choose the best path of the network.

2.  It does not include mechanisms such as collision detection.

3.  It does not operate in full-duplex mode and cannot be divided into the Segment.

4.  It cannot reduce the network traffic as it has no mechanism.

5.  It is not able to filter the information as it transmits packets to all the connected segments.

6.  Furthermore, it is not capable of connecting various network architectures like a ring, token, and ethernet, and more.