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IPsecInternet Protocol Security

Internet Protocol Security (IPsec) is a protocol suite for secure Internet Protocol (IP) communications by authenticating and encrypting each IP pa...

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Troubleshooting Solution

Secure ways to share data over the internet

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What are some secure methods of sharing banking information over the internet?
Article
threat model

Threat Modeling: Secure System In Five Simple Steps

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Envision that you are chipping away at another e-business site with a team of pundit developers and designers. Everything seems, by all accounts, to be going easily.
Article
Scenario 1

IPsec VPN Configuration On Cisco IOS XE - Part 1 - Policy Based VPN

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This article is about building a site to site VPN tunnels in Cisco CSR1000V router with IOS XE. There are two Policy Based IPsec VPN tunnels configured on CSR1000V router one with NAT and another without NAT.
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Post

Today's ransomware attack is spreading by SMB through the …

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Today's ransomware attack is spreading by SMB through the local network and is known as WannaCry.
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Gain the added security of knowing you are prepared and …

Gain the added security of knowing you are prepared and properly protected against future ransomware…
Troubleshooting Solution

trouble with pfsense ipsec tunnel

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putting in a new pfsense firewall to replace an old sonicwall.  have a distributor that I need to …
Troubleshooting Solution

Cisco ASA site to site VPN dynamic

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Hi, I have 3 sites in different geographical locations and we use Cisco ASA firewalls.

The main site …
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This video gave me a new found respect for lava lamps:  …

This video gave me a new found respect for lava lamps:

Troubleshooting Solution

Need to confirm suspicious IP reported by Network Management software

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I need to look up a suspicious IP which was detected as communicating with one our devices on the …
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Troubleshooting Solution

ipsec tunnel between two small offices, best lowcost equipment

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I am setting up a connection between two small offices and think that an IPSEC tunnel is the best …
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Recently, we attended Black Hat USA 2017 and found the top …

Recently, we attended Black Hat USA 2017 and found the top four security finds you should know …
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In response to your need for cybersecurity and privacy, we …

In response to your need for cybersecurity and privacy, we developed the ability to ask questions …
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Afraid your identity has been stolen in the Equifax Breach? …

Afraid your identity has been stolen in the Equifax Breach? Here's a thorough FTC guide
Article
Scenario 2

IPsec VPN Configuration On Cisco IOS XE - Part 2 - VRF-Aware Policy Based VPN

This article is about building a VRF-Aware site to site VPN tunnels in Cisco CSR1000V router with IOS XE. There are two VRF-Aware Policy Based IPsec VPN tunnels configured on CSR1000V router one with NAT and another without NAT.
Article
Scenario 3

IPsec VPN Configuration On Cisco IOS XE - Part 3 - Route Based VPN

This article is about building a Route Based site to site VPN tunnels 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)

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
Scenario 5

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

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 6

IPsec VPN Configuration On Cisco IOS XE - Part 6 - Route Based VPN With Redundant Routers in DC (HUB)

This article is about building a Route Based site to site VPN tunnels with Redundant Routers in DC (HUB) in Cisco CSR1000V router with IOS XE. There are four Route Based IPsec VPN tunnels configured on two CSR1000V routers as redundant routers pair.

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