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Answer Upon - Security Checklist For Voip Service Providers
When special events and communications tactics rule the PR roost instead of a workable plan designed to manage external audience behaviors that impact your organization the most, that’s where public relations results can wind up.You know, bad results like key target audiences showing little confidence in your organization, or seldom taking actions that help you succeed and, in the end, failing to help you achieve your unit objectives.If that sounds all too familiar, you’ve got to change a few things. So let’s start with what your public relations should be about, perhaps something like this: People act on their own perception of the facts before them, which leads to predictable behaviors about which something can be done. When we create, change or reinforce that
The structure of a VoIP call with separate media and signalling streams has lead to some innovative ploys. For example, a rogue PC client which transports media in the RTCP quality monitoring stream, this is not policed in most networks. Another ploy is to transport media in the call signalling then failing the call before billing commences. Not only does this mean a free call but repeated call set can cause huge signalling rates which are a DoS attack in themselves.
The solution is to police all components of the call. SBCs police the signalling and the media to ensure that the call is executed as requested and that RTCP traffic is within expected bounds.
Conclusion
Security is a vast subject and needs to be ubiquitous in its implementation
There can be no doubt that the internet has changed the way citizens of the World do business. Both business and consumers are now confident in carrying out any number of transactions through the World Wide Web. The global turnover has risen to billions of dollars over the last decade and is rising faster than statisticians can add. If you want to run a successful and advanced internet business marketing products online you can expect massive returns.The secrets of success are simple and logical. The rewards are there for us all to be taken. You just have to understand a few facts, Facts that are not know by everyone who rushes head first into the internet gold rush. One primary fact is that statistics still show that people who go online do not specifically want to buy
Security to the customer means protecting their device and identity and the continuity of their service. Security to the service provider means protecting their network their revenue and their customers. In this feature we will look at service disruption and service theft.
Disruption
A service can be disrupted by breaking the user's device, flooding the IP network with traffic or breaking the service provider's infrastructure. Disruption is usually achieved through either Logic Attacks or Flood Attacks or Application Layer Attacks.
• Logic attacks exploit vulnerabilities in protocols or their implementations, e.g. Ping of death, Teardrop, Land etc.
• Flood attacks disable targets through traffic volume; a flood attack can originate from a single platform or from multiple platforms.
• Application Layer Attacks include: SIP-SPAM, and identity forging.
We can also divide the attacks into IP layer and SIP layer thus:
IP Logic Attack / IP Flood Attack
SIP Logic Attack / SIP Flood Attack
Application Layer attack
IP Logic Attacks
IP Logic attacks on SIP devices are no different to any other IP device; these include well known exploits such as: Ping of death, Teardrop, Land, Chargen and Out of sequence packets. All of these can disable a device which has not been fully tested to protect itself against these exploits.
IP Flood Attacks
IP Flood attacks include: SYN flood attack (TCP SYN Floods are one of the oldest DoS attacks in existence), Smurf Attack, Fraggle attack and the list goes on... These attacks are designed either to overcome the device by tying up resources or to simply overwhelm the network through shear weight of traffic.
SIP Logic Attacks
SIP logic attacks exploit weaknesses in SIP signalling implementations. Incomplete or incorrect fields, invalid message types can disable not only client devices but also core network devices. This type of attack can be countered by thorough testing of any devices against suites such at the IETF SIP Torture test developed through the SIPiT Events or the PROTOS Test-Suite, developed by the University of Oulu.
A more sophisticated attack can be to inject messages into a call to terminate it prematurely. This type of attack can be largely avoided by the use of strong authentication techniques, thus, the injected packet would not be authenticated and therefore would be rejected.
SIP Flood Attacks
SIP flood attacks exploit weaknesses higher up the communications stack that require more processing resources. As a consequence, it takes a much smaller flood to cause disruption. For example, one or more devices may send multiple registrations or call requests to a server.
Countering this type of disruption requires network based devices like Session Border Controllers (SBCs) to police the signalling stream and rate limit registrations and calls to Softswitches to predetermined limits. Acting as a proxy in the signalling stream the SBC can also filter inappropriate protocols, IP DoS attacks and invalid SIP messages. This helps compartmentalise the network and restricts any disruption to just one network segment.
Protect the User Device
These devices will typically be incapable of rate limiting and may be overrun by flood attacks. This means they are subject to both logic and flood attacks. Again the user device will benefit from the protection afforded by network based SBCs blocking DoS attacks and invalid SIP messages.
Service Theft
A simple example of service theft is to signal that a voice call it being made but exchange video data. This hits the service provider on two fronts: a) loss of revenue by billing for only a voice call and b) potential degradation in service quality for other users resulting in dissatisfaction.
The structure of a VoIP call with separate media and signalling streams has lead to some innovative ploys. For example, a rogue PC client which transports media in the RTCP quality monitoring stream, this is not policed in most networks. Another ploy is to transport media in the call signalling then failing the call before billing commences. Not only does this mean a free call but repeated call set can cause huge signalling rates which are a DoS attack in themselves.
The solution is to police all components of the call. SBCs police the signalling and the media to ensure that the call is executed as requested and that RTCP traffic is within expected bounds.
Conclusion
Security is a vast subject and needs to be ubiquitous in its implementation.
Millions of people worldwide are enticed by the opportunity to work at home. A job from home allows individuals considerably more flexibility, extra time with family and generally alleviates the immense stress which may result from an active career. At home jobs are also desirable for individuals who wish to make an extra income in addition to their day job, college students, disabled persons, at home mothers and senior citizens.Thousands of people search the internet everyday in hopes of finding financial freedom from the comfort of their own home. Unfortunately, the internet is plagued with work at home scams. There are hundreds of companies which promote 'get rich quick schemes' or 'guaranteed' opportunities to make a living from home. Scams include, but are not limi
• Flood attacks disable targets through traffic volume; a flood attack can originate from a single platform or from multiple platforms.
• Application Layer Attacks include: SIP-SPAM, and identity forging.
We can also divide the attacks into IP layer and SIP layer thus:
IP Logic Attack / IP Flood Attack
SIP Logic Attack / SIP Flood Attack
Application Layer attack
IP Logic Attacks
IP Logic attacks on SIP devices are no different to any other IP device; these include well known exploits such as: Ping of death, Teardrop, Land, Chargen and Out of sequence packets. All of these can disable a device which has not been fully tested to protect itself against these exploits.
IP Flood Attacks
IP Flood attacks include: SYN flood attack (TCP SYN Floods are one of the oldest DoS attacks in existence), Smurf Attack, Fraggle attack and the list goes on... These attacks are designed either to overcome the device by tying up resources or to simply overwhelm the network through shear weight of traffic.
SIP Logic Attacks
SIP logic attacks exploit weaknesses in SIP signalling implementations. Incomplete or incorrect fields, invalid message types can disable not only client devices but also core network devices. This type of attack can be countered by thorough testing of any devices against suites such at the IETF SIP Torture test developed through the SIPiT Events or the PROTOS Test-Suite, developed by the University of Oulu.
A more sophisticated attack can be to inject messages into a call to terminate it prematurely. This type of attack can be largely avoided by the use of strong authentication techniques, thus, the injected packet would not be authenticated and therefore would be rejected.
SIP Flood Attacks
SIP flood attacks exploit weaknesses higher up the communications stack that require more processing resources. As a consequence, it takes a much smaller flood to cause disruption. For example, one or more devices may send multiple registrations or call requests to a server.
Countering this type of disruption requires network based devices like Session Border Controllers (SBCs) to police the signalling stream and rate limit registrations and calls to Softswitches to predetermined limits. Acting as a proxy in the signalling stream the SBC can also filter inappropriate protocols, IP DoS attacks and invalid SIP messages. This helps compartmentalise the network and restricts any disruption to just one network segment.
Protect the User Device
These devices will typically be incapable of rate limiting and may be overrun by flood attacks. This means they are subject to both logic and flood attacks. Again the user device will benefit from the protection afforded by network based SBCs blocking DoS attacks and invalid SIP messages.
Service Theft
A simple example of service theft is to signal that a voice call it being made but exchange video data. This hits the service provider on two fronts: a) loss of revenue by billing for only a voice call and b) potential degradation in service quality for other users resulting in dissatisfaction.
The structure of a VoIP call with separate media and signalling streams has lead to some innovative ploys. For example, a rogue PC client which transports media in the RTCP quality monitoring stream, this is not policed in most networks. Another ploy is to transport media in the call signalling then failing the call before billing commences. Not only does this mean a free call but repeated call set can cause huge signalling rates which are a DoS attack in themselves.
The solution is to police all components of the call. SBCs police the signalling and the media to ensure that the call is executed as requested and that RTCP traffic is within expected bounds.
Conclusion
Security is a vast subject and needs to be ubiquitous in its implementation
Writing a business plan is not an easy endeavor, nor is predicting the future. You will need to spent adequate time in preparing your long-term goals and objectives. This will help you understand what you are doing and where you wish to be. Martin Luther King in is most famous speech said; “I have a dream” which is noble indeed, but had he had a “Strategic Plan” with quarterly objectives he may have seen that dream come true in his lifetime.In preparing your Long Term Goals and Objectives for your business plan you will need to communicate this to the investor, banker or your partners. It also helps you stay on course and keep your plan strategic rather than merely a dream. Below I have provided you with a sample “long term goal” section for a business plan so you can s
SIP Logic Attacks
SIP logic attacks exploit weaknesses in SIP signalling implementations. Incomplete or incorrect fields, invalid message types can disable not only client devices but also core network devices. This type of attack can be countered by thorough testing of any devices against suites such at the IETF SIP Torture test developed through the SIPiT Events or the PROTOS Test-Suite, developed by the University of Oulu.
A more sophisticated attack can be to inject messages into a call to terminate it prematurely. This type of attack can be largely avoided by the use of strong authentication techniques, thus, the injected packet would not be authenticated and therefore would be rejected.
SIP Flood Attacks
SIP flood attacks exploit weaknesses higher up the communications stack that require more processing resources. As a consequence, it takes a much smaller flood to cause disruption. For example, one or more devices may send multiple registrations or call requests to a server.
Countering this type of disruption requires network based devices like Session Border Controllers (SBCs) to police the signalling stream and rate limit registrations and calls to Softswitches to predetermined limits. Acting as a proxy in the signalling stream the SBC can also filter inappropriate protocols, IP DoS attacks and invalid SIP messages. This helps compartmentalise the network and restricts any disruption to just one network segment.
Protect the User Device
These devices will typically be incapable of rate limiting and may be overrun by flood attacks. This means they are subject to both logic and flood attacks. Again the user device will benefit from the protection afforded by network based SBCs blocking DoS attacks and invalid SIP messages.
Service Theft
A simple example of service theft is to signal that a voice call it being made but exchange video data. This hits the service provider on two fronts: a) loss of revenue by billing for only a voice call and b) potential degradation in service quality for other users resulting in dissatisfaction.
The structure of a VoIP call with separate media and signalling streams has lead to some innovative ploys. For example, a rogue PC client which transports media in the RTCP quality monitoring stream, this is not policed in most networks. Another ploy is to transport media in the call signalling then failing the call before billing commences. Not only does this mean a free call but repeated call set can cause huge signalling rates which are a DoS attack in themselves.
The solution is to police all components of the call. SBCs police the signalling and the media to ensure that the call is executed as requested and that RTCP traffic is within expected bounds.
Conclusion
Security is a vast subject and needs to be ubiquitous in its implementation
Secured loans always carry low rate of interest because the borrower needs to place an asset of his as security against the loan amount. But what if you want a loan at low interest rate and don’t have any property to place as collateral? The answer is low cost unsecured loans. Low cost unsecured loans provide you the benefits of a secured loan without the need of any collateral.LOW COST UNSECURED LOANS: FEATURESLow cost unsecured loans don’t need any collateral to be placed against the loan amount. You can avail low cost unsecured loans even if you don’t have any personal property. It can also be availed by homeowners who don’t want to risk their property to avail loan. Low cost unsecured loans can be availed by both good and bad credit holders. But bad credit ho
Countering this type of disruption requires network based devices like Session Border Controllers (SBCs) to police the signalling stream and rate limit registrations and calls to Softswitches to predetermined limits. Acting as a proxy in the signalling stream the SBC can also filter inappropriate protocols, IP DoS attacks and invalid SIP messages. This helps compartmentalise the network and restricts any disruption to just one network segment.
Protect the User Device
These devices will typically be incapable of rate limiting and may be overrun by flood attacks. This means they are subject to both logic and flood attacks. Again the user device will benefit from the protection afforded by network based SBCs blocking DoS attacks and invalid SIP messages.
Service Theft
A simple example of service theft is to signal that a voice call it being made but exchange video data. This hits the service provider on two fronts: a) loss of revenue by billing for only a voice call and b) potential degradation in service quality for other users resulting in dissatisfaction.
The structure of a VoIP call with separate media and signalling streams has lead to some innovative ploys. For example, a rogue PC client which transports media in the RTCP quality monitoring stream, this is not policed in most networks. Another ploy is to transport media in the call signalling then failing the call before billing commences. Not only does this mean a free call but repeated call set can cause huge signalling rates which are a DoS attack in themselves.
The solution is to police all components of the call. SBCs police the signalling and the media to ensure that the call is executed as requested and that RTCP traffic is within expected bounds.
Conclusion
Security is a vast subject and needs to be ubiquitous in its implementation
“What is my calling?” Do any of us really have complete clarity about our life calling? Even those of us with the knowingness we must teach, write or sing may often ask, “What direction am I to go, now?” How do we answer these soulful questions?Richard Bolles, author of “What Color is My Parachute?” and the granddaddy of the employment industry says, when people are asked what they would like to do they often respond with “I don’t know.” Bolles maintains this is because people interpret the question to be “What am I going to do with the rest of my life?”This question is too big, too daunting, immobilizing people. Instead, remind yourself that the career journey is much like driving a car in the fog. Sign posts arrive at the crossroads and we can reach our destina
The structure of a VoIP call with separate media and signalling streams has lead to some innovative ploys. For example, a rogue PC client which transports media in the RTCP quality monitoring stream, this is not policed in most networks. Another ploy is to transport media in the call signalling then failing the call before billing commences. Not only does this mean a free call but repeated call set can cause huge signalling rates which are a DoS attack in themselves.
The solution is to police all components of the call. SBCs police the signalling and the media to ensure that the call is executed as requested and that RTCP traffic is within expected bounds.
Conclusion
Security is a vast subject and needs to be ubiquitous in its implementation. Take care of the fundamentals first:
Test, authenticate, protect, block, limit and police.
• Test network elements against standard IP and SIP test suites to ensure they can survive IP and SIP logic attacks
• Implement strong authentication, identifying your users protects their identity, protect their service and combats disruption.
• Protect the Network by compartmentalizing it to restrict the range of any disruption.
• Block malicious or inappropriate traffic – do not propagate the problem.
• Limit the rate of traffic to core elements to ensure the survivability of the service.
• Police all aspects of the traffic flowing across the network to prevent fraudulent or inappropriate use.
A secure and dependable service brings with it benefits to users and provider alike. It will build user confidence which in turn creates dependable revenue for the service provider and by addressing the basics from day one, need not be complex or expensive.
For more information on a range of VoIP topics: multimedia networks, security and IMS there is a number of free White Papers available from Newport Networks.
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