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Network Security

Network security consists of the policies adopted to prevent and monitor authorized access, misuse, modification, or denial of a computer network a...

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Expert Spotlight
Rodney Barnhardt
Server Administrator

I have over 30 years in the IT industry. During this time I have worked with a variety of products in a variety of industries.

Article

Improve Network Security – Separate DNS from Active Directory

byRodney Barnhardt
While deploying Active Directory with integrated DNS makes managing a domain easier, it does come with security risks. Separating out DNS can actually improve security and make things harder for a threat actor.
Article
Think Like An Attacker

Think Like An Attacker to Learn Uncovered Crucial Network Security Points

byUgra Narayan Pandey
It is important to think like an attacker for an individual who is responsible for cloud data security in his or her business. Therefore, here we came with this post to aware users with main points that hackers consider while attempting an attack.
Article
Scenario 10

IPsec VPN Configuration On Cisco IOS XE - Part 10 - Dual Hub Dual Cloud Phase 3 Dynamic Multipoint VPN (DMVPN)

bySantosh Salunke
This article is about building Dynamic Multipoint VPN tunnels in Cisco CSR1000V router with IOS XE. There are two CSR1000V hub routers configured with dual hub dual cloud Phase 3 DMVPN.
Article
Scenario 9

IPsec VPN Configuration On Cisco IOS XE - Part 9 - Dual Hub Phase 3 Dynamic Multipoint VPN (DMVPN) Cloud

bySantosh Salunke
This article is about building Dynamic Multipoint VPN tunnels in Cisco CSR1000V router with IOS XE. There are two CSR1000V hub routers configured with single tier Phase 3 DMVPN Cloud.
Article
Scenario 8

IPsec VPN Configuration On Cisco IOS XE - Part 8 - Single Tier Phase 3 Dynamic Multipoint VPN (DMVPN) Cloud

bySantosh Salunke
This article is about building Dynamic Multipoint VPN tunnels in Cisco CSR1000V router with IOS XE. There are two spoke routers connected to single tier Phase 3 DMVPN Cloud hosted on CSR1000V router.
Article
Spam Passing through Cisco Cloud Email Security -

Having Problems with Lots of Spam Passing through Cisco Cloud Email Security Since Last Week?

bymasnrock

If you're having problems where a lot of messages that Cisco Cloud Email Security would normally

…
Article
Scenario 7

IPsec VPN Configuration On Cisco IOS XE - Part 7 - Single Tier Dynamic Multipoint VPN (DMVPN) Cloud

bySantosh Salunke
This article is about building Dynamic Multipoint VPN tunnels in Cisco CSR1000V router with IOS XE. There are two spoke routers connected to single tier Phase 1 DMVPN Cloud hosted on CSR1000V router.
Article

Network Security Checklist

byLee W, MVP
4
Coming up with a good network security checklist can be challenging. The list below was created with input from not less than a dozen technology consultants and security experts.
Article

What Gives SIEM a Good Name?

bymadunix
4
SIEM must examine concepts of normality and abnormality traffic/data flow patterns. SIEM need to constitute use of adaptive intelligence. Companies need to evaluate SIEM products based on their own objectives to determine the product that best meet their needs.
Article
Scenario 5

IPsec VPN Configuration On Cisco IOS XE - Part 5 - Route Based VPN With VRF And Dynamic Routing (OSPF)

bySantosh Salunke
This article is about building a Route Based site to site VPN tunnels with VRF and dynamic routing protocol (OSPF) in Cisco CSR1000V router with IOS XE. There are two Route Based IPsec VPN tunnels configured on CSR1000V router, traffic from app server is with NAT and rest is without NAT.
Article
Scenario 4

IPsec VPN Configuration On Cisco IOS XE - Part 4 - Route Based VPN With Dynamic Routing (OSPF)

bySantosh Salunke
This article is about building a Route Based site to site VPN tunnels with dynamic routing protocol (OSPF) in Cisco CSR1000V router with IOS XE. There are two Route Based IPsec VPN tunnels configured on CSR1000V router, traffic from app server is with NAT and rest is without NAT.
Article

How to isolate a guest network or Wi-Fi network on an Edge Router

byAbraham Deutsch
When you have a Wi-Fi, you might want to isolate the untrusted network from your network, since Wi-Fi is more vulnerable to attacks, as is a guest network. You will still be able to manage guest/Wi-Fi from your network. This is possible to do with an Edge router
Article

Vulnerability Assessments versus Penetration Tests

bymadunix
In computing, Vulnerability assessment and penetration testing are used to assess systems in light of the organization's security posture, but they have different purposes.
Article

How Penetration Testing benefiting the IT Firms

byPoonam Yadav
1
A discussion about Penetration Testing and the Tools used to help achieve this important task.
Article
Password-Managers

Password Managers - 5 of the best reviewed

byAndrew Leniart
19
Each password manager has its own problems in dealing with certain websites and their login methods. In Part 1, I review the Top 5 Password Managers that I've found to be the best. In Part 2 we'll look at which ones co-exist together and why it's often useful to use more than one.
Article

What Threats Will You Face in 2018?

byAlexandra Lating
2017 was a scary year for cyber security. Hear what our security experts say that hackers have in store for us in 2018.
Article

Surveying Anti-Phishing Standards – Part 2

byAlexandra Lating
Last month Marc Laliberte, WatchGuard’s Senior Threat Analyst, contributed reviewed the three major email authentication anti-phishing technology standards: SPF, DKIM, and DMARC. Learn more in part 2 of the series originally posted in Cyber Defense Magazine.
Article

SonicWall Blocking Update Downloads

byAlex Wilson
How to fix a SonicWall Gateway Anti-Virus firewall blocking automatic updates to apps like Windows, Adobe, Symantec, etc.
Article

What You Need To Know About Anti-Phishing Standards – Part 1

byAlexandra Lating
Phishing emails are a popular malware delivery vehicle for attack. While there are many ways for an attacker to increase the chances of success for their phishing emails, one of the most effective methods involves spoofing the message to appear to come from a trusted source. Ready to learn more?
Article

Tech Horror Story - Monsters in the Nursery

byNichole LaRue
What monsters are hiding in your child's room? In this article I will share with you a tech horror story that could happen to anyone, along with some tips on how you can prevent it from happening to you.

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