Docker Networking takes a step in the right direction
It’s been just over one month since the SocketPlane team joined Docker and we’ve been working hard to deliver on our promise of helping to grow a healthy ecosystem around Networking. This week, with the help of our partners, we’ve … ContinuedFeatured Webinar: Metaswitch GM Paul Drew Gives a Sneak Peek at “Virtualizing Voice Infrastructure”
Mark your calendar for an upcoming webinar to learn how network operators can save on CapEx and OpEx, and better compete with OTT providers.
Featured White Paper: How to Configure NFV Servers to Slash System Downtime
This intuitive white paper discusses how configuring your NFV servercapable of cutting downtime by up to 97 percent.
Kill An SSH Connection
Check what’s connected to the switch first:
#show ssh
%No SSHv1 server connections running.
Connection Version Mode Encryption Hmac State Username
0 2.0 IN aes128-cbc hmac-md5 Session started user1
0 2.0 OUT aes128-cbc hmac-md5 Session started user1
1 2.0 IN aes128-cbc hmac-md5 Session started user1
1 2.0 OUT aes128-cbc hmac-md5 Session started user1
Kill session using “disconnect” command:
#disconnect ssh ?
The number of the active SSH connection
vty Virtual terminal
#disconnect ssh 0
IT/IT: Observations on Ownership
We are clearly moving to a software focused world — this conclusion is almost as inevitable and natural as taking your next breath (or eating that next Little Bits burger — but don’t get the big one unless you’re really hungry).
But, as with all things, there is a flip side to the world going to software. It could actually turn out that the IT world is on the path to becoming our own worst enemies. This, by the way, is what caught my eye this week, and what causes me to rant a little.
The cost and hassle of repairing modern tractors has soured a lot of farmers on computerized systems altogether. In a September issue of Farm Journal, farm auction expert Greg Peterson noted that demand for newer tractors was falling. Tellingly, the price of and demand for older tractors (without all the digital bells and whistles) has picked up. “As for the simplicity, you’ve all heard the chatter,” Machinery Pete wrote. “There’s an increasing number of farmers placing greater value on acquiring older simpler machines that don’t require a computer to fix.”
The issue at stake, at least in the United States, is the Digital Continue reading
An introduction to JavaScript-based DDoS
CloudFlare protects millions of websites from online threats. One of the oldest and most pervasive attacks launched against websites is the Distributed Denial of Service (DDoS) attack. In a typical DDoS attack, an attacker causes a large number of computers to send data to a server, overwhelming its capacity and preventing legitimate users from accessing it.
In recent years, DDoS techniques have become more diversified: attackers are tricking unsuspecting computers into participating in attacks in new and interesting ways. Last year, we saw what was likely the largest attack in history (>400Gbps) performed using NTP reflection. In this attack, the unsuspecting participants were misconfigured NTP servers worldwide. This year, we’re seeing a disturbing new trend: attackers are using malicious JavaScript to trick unsuspecting web users into participating in DDoS attacks.
The total damage that can be caused by a NTP or DNS reflection attack is limited by the number of vulnerable servers. Over time, this number decreases as networks patch their servers, and the maximum size of the attack is capped at the outbound capacity of all the vulnerable servers. For JavaScript-based DDoS, any computer with a browser can be enrolled in the attack, making the potential attack volume nearly Continue reading