Should You Build or Buy a Router?
Patrik Schindler sent me an interesting comment to my Open-Source DMVPN Alternatives blog post:
I’ve done searches myself some time ago about the readymade Linux distros supporting DMVPN and got exactly what I asked for.
Glancing over that page appalled me: Different stuff with different configuration languages, probably the need to restart things, thus generating service outages for configuration changes…
Your blog is heavily biased towards big deployments with good opportunities for automation, and the diversity of different components can be easily hidden behind automation scripts of choice. Smaller deployments are almost never being able to compensate the initial overhead of creating all the automation fuzz, and from that perspective, I must admit that configuring a Cisco router feels way more smooth to me.
Welcome to the build-or-buy dilemma, router edition.
Update on recent VoIP attacks: What should I do if I’m attacked?
Attackers continue targeting VoIP infrastructure around the world. In our blog from last week, May I ask who’s calling, please? A recent rise in VoIP DDoS attacks, we reviewed how the SIP protocol works, ways it can be abused, and how Cloudflare can help protect against attacks on VoIP infrastructure without impacting performance.
Cloudflare’s network stands in front of some of the largest, most performance-sensitive voice and video providers in the world, and is uniquely well suited to mitigating attacks on VoIP providers.
Because of the sustained attacks we are observing, we are sharing details on recent attack patterns, what steps they should take before an attack, and what to do after an attack has taken place.
Below are three of the most common questions we’ve received from companies concerned about attacks on their VoIP systems, and Cloudflare’s answers.
Question #1: How is VoIP infrastructure being attacked?
The attackers primarily use off-the-shelf booter services to launch attacks against VoIP infrastructure. The attack methods being used are not novel, but the persistence of the attacker and their attempts to understand the target’s infrastructure are.
Attackers have used various attack vectors to probe the existing defenses of targets and try to Continue reading
Learning from Facebook’s Mistakes
On October 4th Facebook managed to achieve one of the more impactful of outages of the entire history of the Internet, assuming that the metric of "impact" is how many users one can annoy with a single outage. What can we as an industry learn from this outage to ensure that we can avoid a recurrence of such a widespread outage in other important and popular service platforms?Hedge 103: BGP Security with Geoff Huston
Our community has been talking about BGP security for over 20 years. While MANRS and the RPKI have made some headway in securing BGP, the process of deciding on a method to provide at least the information providers need to make more rational decisions about the validity of individual routes is still ongoing. Geoff Huston joins Alvaro, Russ, and Tom to discuss how we got here and whether we will learn from our mistakes.
Day Two Cloud 118: Growing Your Open-Source Community
How does a company building a product from an open-source project get off the ground? How does it communicate its value, attract contributors, and develop a user base? And how does it spread the word without turning off engineers with typical tech marketing? Guest Emily Omier is a positioning consultant who helps companies and projects get it right.
The post Day Two Cloud 118: Growing Your Open-Source Community appeared first on Packet Pushers.
Day Two Cloud 118: Growing Your Open-Source Community
How does a company building a product from an open-source project get off the ground? How does it communicate its value, attract contributors, and develop a user base? And how does it spread the word without turning off engineers with typical tech marketing? Guest Emily Omier is a positioning consultant who helps companies and projects get it right.ARP problems in EVPN
In any L2 overlay network, ARP handling will always remain a big pain for network operators.
This post explains why you should always set ARP timeout to less than 5 minutes in L3 EVPN, and always be cautious of potential …
BGP Config Change, Not Cyber Attack, Brought Down Facebook
Enterprise IT takes-aways from the Facebook outage: Tread carefully when making BGP config changes and avoid putting everything (DNS, apps, and more) on one network.Wireless LANS in the 21st Century
The power and potential of the next generation cognitive campus are transformative as the industry undergoes a massive transition to hybrid work in the post-pandemic era. A key underpinning to successful campus networking deployments has been our very first acquisition of Mojo Networks for cognitive Wi-Fi. Arista’s entry into wireless is only in its third year, yet the advances in this space will be profound over the next decade.
Staging TLS Certificate: Make every deployment a safe deployment
We are excited to announce that Enterprise customers now have the ability to test custom uploaded certificates in a staging environment before pushing them to production.
With great power comes great responsibility
If you’re running a website or the API that’s behind a popular app, you know your users have high expectations: it can't just be up and running; it also has to be fast and secure. One of the easiest and most standardized ways to secure connections is with the TLS protocol. To do that, you need to acquire a TLS certificate for your domain.
One way to get a certificate is by using a CDN provider, like Cloudflare. We make the process really easy by issuing certificates on your behalf. Not just that, but when your certificate is getting closer to its expiration date, we are responsible for re-issuing it. But, if you don’t want Cloudflare to issue the certificate on your behalf and want to obtain the certificate yourself, you can do so. You can either keep control of your private key, or generate a Certificate Signing Request (CSR) through Cloudflare, so we maintain the private key, but you can still use the certificate authority (CA) of Continue reading
Worth Reading: Do We Need Segment Routing?
Etienne-Victor Depasquale sent me a pointer to an interesting NANOG discussion: why would we need Segment Routing. It’s well worth reading the whole thread (until it devolves into “that is not how MPLS works” arguments), which happens to be somewhat aligned with my thinking:
- SR-MPLS makes perfect sense (excluding the migration-from-LDP fun)
- SRv6 (in whatever incantation) is mostly a vendor ploy to sell new chipsets.
Enjoy!
Worth Reading: Do We Need Segment Routing?
Etienne-Victor Depasquale sent me a pointer to an interesting NANOG discussion: why would we need Segment Routing. It’s well worth reading the whole thread (until it devolves into “that is not how MPLS works” arguments), which happens to be somewhat aligned with my thinking:
- SR-MPLS makes perfect sense (excluding the migration-from-LDP fun)
- SRv6 (in whatever incantation) is mostly a vendor ploy to sell new chipsets.
Enjoy!
Tips for Job Seekers In 2021
The year 2020 has been a rough ride. A lot of companies went out of business and a lot of people lost their jobs. However the job market is continuously evolving and it is still very competitive even after taking a hit during the pandemic. Technology is changing the way that employers find employees and employees find employers.
Employers are always looking for creative, efficient, innovative and empathetic individuals who are productive and can help in creating a better workplace for everyone. Employees will be looking for organizations who have a clear mission statement and are able to provide them with structure, clarity and meaning in their work.
Let’s take a look at some of the tips for job seekers in 2021.
You Need To Have a Portfolio
The first thing that a job seeker needs to do is have a portfolio of work that they can show off to potential employers. It’s no longer good enough just to have a CV, they need an online presence that reflects their personality and creativity.
Keep Your Online Profile Updated
Job seekers also need to make sure that they are on top of new developments in the industry and keep their LinkedIn Continue reading