WhatsApp discloses critical vulnerability in older app versionsWhatsApp discloses critical vulnerability in older app versionsWhatsApp discloses critical vulnerability in older app versions

The bug, which has been patched in newer versions of the app, would let an attacker execute malicious code after sending a specially crafted video call WhatsApp has published details of a “critical” vulnerability that has been patched in a newer version of the app but could still affect older installations that have not been updated. Details were disclosed in

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The Open System Interconnection (OSI) Model

Layer Example Application Layer Telnet, SSH, FTP, SMTP, HTTP, NFS, SNMP Presentation Layer JPG, PNG, GIF, MPEG, ASCII, CSS, HTML Session Layer RPC, SCP, TLS Transport Layer TCP, UDP Network Layer IP V4, IP V6, ICMP, IPsec Data Link Layer MAC, PPP, ATM, HDLC, Frame Relay Physical Layer Ethernet, ISDN, USB, DSL What is Telnet? a network protocol that allows

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Cisco SD-WAN

Cisco SD-WAN is a platform solution for resolving performance, scalability and management ofnetworks facing the transition into a cloud-based, mobile world. Cisco helps users remain visible acrossWAN while experiencing fast and secure connectivity. The Cisco SD-WAN vManage console connects the overlay fabric to data center, branch, campus, cloudand other networks with improved performance and security using templates and custom policies.Optimal

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BGP LAB

Configuring Interfaces IP address for IGP and BGP ISP interface FastEthernet0/0  ip address 121.121.121.1 255.255.255.252   interface FastEthernet0/1  ip address 122.122.122.1 255.255.255.252 A1 interface Loopback1  ip address 100.100.100.1 255.255.255.255   interface FastEthernet0/0  ip address 192.168.100.1 255.255.255.0   interface FastEthernet0/1  ip address 121.121.121.2 255.255.255.252   A2 interface Loopback1  ip address 100.100.100.2 255.255.255.255   interface FastEthernet0/0  ip address 192.168.100.2 255.255.255.0   B1

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