Navigating with Wireshark
Tony Fortunato takes you on a quick Wireshark navigational exercise. In the video, he provides examples and discusses filters and other topics to get you started.
Response: Google’s CEO thinks Android users know how much their phones are tracking them – TechCrunch
I think thats a bare faced lie. And google knows it.
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Configuring Cisco Flexible NetFlow and Juniper j-Flow v8
The post Configuring Cisco Flexible NetFlow and Juniper j-Flow v8 appeared first on Noction.
Can I Replace a Commercial Load Balancer with HAProxy?
A networking engineer attending the Building Next-Generation Data Centers online course sent me this question:
My client will migrate their data center, so they’re not interested in upgrading existing $vendor load balancers. Would HAProxy be a good alternative?
As you might be facing a similar challenge, here’s what I told him:
Read more ...The Case of the Missing LDP Neighbor
R1 and R2 are cabled up twice to each other via their gig0/0/1 interfaces and their gig0/0/7 interfaces. Each connection is in its own subnet, and each interface configured for OSPF and MPLS. But while we have 2 OSPF neighbors between them… we only have 1 LDP neighbor.
R1#show mpls int
Interface IP Tunnel BGP Static Operational
Gi0/0/1 Yes (ldp) No No No Yes
Gi0/0/7 Yes (ldp) No No No Yes
R1#
So as you can see from the output of show mpls interface, gig0/0/1 and gig0/0/7 are both configured for MPLS LDP. Why then if we look below do we see only 1 MPLS LDP neighbor between them?
What is the problem? Actually… in this situation there isn’t a problem. This is actually expected behavior.
R1#sh mpls ldp neighbor
Peer LDP Ident: 10.100.100.2:0; Local LDP Ident 10.100.100.1:0
TCP connection: 10.100.100.2.22592 - 10.100.100.1.646
State: Oper; Msgs sent/rcvd: 184/184; Downstream
Up time: 02:32:11
LDP discovery sources:
GigabitEthernet0/0/1, Src IP addr: 10.1.1.2
GigabitEthernet0/0/7, Src IP addr: 10.1.7.2
Addresses bound to peer LDP Ident:
Continue reading
OAuth Auth Server through Workers
Let’s pretend I own a service and I want to grant other services access to my service on behalf of my users. The familiar OAuth 2.0 is the industry standard used by the likes of Google sign in, Facebook, etc. to communicate safely without inconveniencing users.
Implementing an OAuth Authentication server is conceptually simple but a pain in practice. We can leverage the power of Cloudflare Worker to simplify the implementation, reduce latency, and segregate our service logic from the authentication layer.
For those unfamiliar with OAuth, I highly recommend reading a more in depth article.
The steps of the OAuth 2.0 workflow are as follows:
- The consumer service redirects the user to a callback URL that was setup by the auth server. At this callback URL, the auth server asks the user to sign in and accept the consumer permissions requests.
- The auth server redirects the user to the consumer service with a code.
- The consumer service asks to exchange this code for an access token. The consumer service validates their identity by including their client secret in the callback URL.
- The auth server gives the consumer the access token.
- The consumer service can now use Continue reading
Pivot3 Adds Encryption, Key Management to HCI Stack
Adding these policy-based security capabilities to the Pivot3 Intelligence Engine enables customers to integrate data encryption and key management into the same workflow for managing applications and storage.
Etcd Joins CNCF’s Growing Cache of Open Source Projects
Etcd is the primary storage location for Kubernetes and needs to be established before Kubernetes can be run on a system.
How SDN and Blockchain can help with IoT Privacy and Security?
The main reason that blockchain can be considered for IoT security and privacy is that blockchain has built-in data protection and security mechanisms.
Ciena, Juniper Lead Data Center Interconnect Market, Dell’Oro Says
Data center interconnect equipment revenue will increase 85 percent over the next five years, from $2.7 billion in 2017 to $5.1 billion in 2022, according to Dell’Oro Group.
Huawei Flags 5G Network Slicing Landmark, Signs New 5G Deal
Amid all the political noise, Huawei ploughs on regardless with a further advance in 5G network slicing and a new 5G network deal with Altice Portugal.
Arista Works With Red Hat and Tigera on Container Environments for Enterprises
The collaboration focuses on the three biggest container pain areas for enterprises: 1) networking; 2) visibility; and 3) security.
Tusheti Community Network One Year Later: Creating Impact, Sustainability, and Scalability
Connecting the most remote and challenging territories of any country to the Internet can be tough. Typically, Internet access spreads gradually from urban conglomerations towards smaller hubs, and finally, to the most remote and sparsely populated areas. This is just common business sense.
Many of these remote areas are unique in terms of their people, culture, and livelihood, and Internet access can make a world of difference. This was the case when the Internet Society, together with its local partners, launched the first community network in Georgia, in the mountainous region of Tusheti, in September 2017.
Creating Impact
One year on, the Internet has made a significant difference to the lives of the Tushetians. This week, the Internet Society published an impact assessment on the Tusheti community network highlighting the transformation in tourism, e-commerce, and people’s livelihoods.
The Internet has had a positive impact on tourism through more effective online advertising and sales, and through efficiencies in businesses operations. With these encouraging developments, local residents are investing in the construction and opening of new guesthouses. The Internet has also increased the levels of safety and mobility in this remote part of the world by providing a communications channel to Continue reading
Headcount: The Latest in Firings, Hirings, and Retirings — December 11, 2018
Joe Cozzolino departs Cisco to join private equity firm; CenturyLink CTO joins the MEF board of directors.
Tech Bytes: HPE’s Composable Fabric For Data Center Automation (Sponsored)
On today's Tech Bytes, sponsored by HPE and Intel, we explore HPE's Composable Fabric. It combines top-of-rack switches and automation software to pool networking resources and help your data center scale. We also discuss how Composable Fabric integrates with Simplivity, HPE's hyperconverged platform.
The post Tech Bytes: HPE’s Composable Fabric For Data Center Automation (Sponsored) appeared first on Packet Pushers.
Are Huawei Products Unsafe or Insecure ? A Review
I’ve done quite a bit of research in the Huawei issue. There are two key areas that I will cover in this review of the available information. The network has to work before it can secured. Software Quality and poor process. Insider Threats by Chinese Nationals. TL:DR Huawei has substantial problems with product quality and […]
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