Network Archives - Page 7 of 17

Jun 27

Extreme Networks (EXTR) Moves 6.1% Higher: Will This Strength Last?

Extreme Networks (EXTR) shares ended the last trading session 6.1% higher at $9.58. The jump came on an impressive volume with a higher-than-average number of shares changing hands in the session. This compares to the stock’s 6% loss over the past four weeks.

Extreme Networks has launched a suite of new solutions and extended its ExtremeCloud portfolio to include new SD-WAN and AIOps with digital twin capabilities. This, in turn, will deliver secure connectivity at the edge of the network, accelerate cloud deployments and help customers with actionable insights – all from within a single platform. This will simplify network management, augment security and improve application performance with a simple, cost-effective subscription licensing model.

This maker of network infrastructure equipment is expected to post quarterly earnings of $0.15 per share in its upcoming report, which represents a year-over-year change of -21.1%. Revenues are expected to be $270.5 million, down 2.7% from the year-ago quarter.

Earnings and revenue growth expectations certainly give a good sense of the potential strength in a stock, but empirical research shows that trends in earnings estimate revisions are strongly correlated with near-term stock price movements.

For Extreme Networks, the consensus EPS estimate for the quarter has remained unchanged over the last 30 days. And a stock’s price usually doesn’t keep moving higher in the absence of any trend in earnings estimate revisions. So, make sure to keep an eye on EXTR going forward to see if this recent jump can turn into more strength down the road.

The stock currently carries a Zacks Rank #3 (Hold). You can see the complete list of today’s Zacks Rank #1 (Strong Buy) stocks here

Extreme Networks is part of the Zacks Computer – Networking industry. Digi International (DGII), another stock in the same industry, closed the last trading session 4.5% higher at $24.12. DGII has returned 5.1% in the past month.

For Digi International , the consensus EPS estimate for the upcoming report has remained unchanged over the past month at $0.38. This represents a change of +322.2% from what the company reported a year ago. Digi International currently has a Zacks Rank of #4 (Sell).

Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report

To read this article on Zacks.com click here.

Zacks Investment Research

Jun 26

Over a Dozen Flaws Found in Siemens’ Industrial Network Management System

Cybersecurity researchers have disclosed details about 15 security flaws in Siemens SINEC network management system (NMS), some of which could be chained by an attacker to achieve remote code execution on affected systems.

“The vulnerabilities, if exploited, pose a number of risks to Siemens devices on the network including denial-of-service attacks, credential leaks, and remote code execution in certain circumstances,” industrial security company Claroty said in a new report.

The drawbacks in question — tracked from CVE-2021-33722 through CVE-2021-33736 — were addressed by Siemens in version V1.0 SP2 Update 1 as part of patches shipped on October 12, 2021.

“The most severe could allow an authenticated remote attacker to execute arbitrary code on the system, with system privileges, under certain conditions,” Siemens noted in an advisory at the time.

Chief among the weaknesses is CVE-2021-33723 (CVSS score: 8.8), which allows for privilege escalation to an administrator account and could be combined with CVE-2021-33722 (CVSS score: 7.2), a path traversal flaw, to execute arbitrary code remotely.

Another notable flaw relates to a case of SQL injection (CVE-2021-33729, CVSS score: 8.8) that could be exploited by an authenticated attacker to execute arbitrary commands in the local database.

“SINEC is in a powerful central position within the network topology because it requires access to the credentials, cryptographic keys, and other secrets granting it administrator access in order to manage devices in the network,” Claroty’s Noam Moshe said.

“From an attacker’s perspective carrying out a living-off-the-land type of attack where legitimate credentials and network tools are abused to carry out malicious activity, access to, and control of, SINEC puts an attacker in prime position for: reconnaissance, lateral movement, and privilege escalation.”

Jun 25

Bitcoin Lightning Network Community Diamond Hands Partners With Open House Group

The largest Lightning community in Japan, Diamond Hands, is partnering with one of the largest real estate firms, Open House Group, in Tokyo for a joint-research project.
Open House will research leveraging the Bitcoin Lightning Network for real estate transactions in the region.
The real estate company will also look to build out infrastructure practices for businesses in the area looking to adopt the Lightning Network.

Open House Group Company Limited, a top real estate firm in the Tokyo Metropolitan Area, is sponsoring Japan’s largest Lightning Network community known as Diamond Hands in a joint-research project, per a press release sent to Bitcoin Magazine.

Open House will sponsor the support and outreach efforts of Diamond Hands as it seeks to further Lightning Network adoption in the region. The Lightning community will join Open House in research and development of both internal projects and community development as it relates to the adoption of Lightning for both individual users and businesses.

Furthermore, Open House seeks to strengthen its understanding of the ecosystem by exploring full-node business operations for firms. This research will include securely storing data on personal devices and cloud databases on full nodes at real estate properties, the leveraging of layer two Bitcoin technology for real estate transactions, and how to route payments on the Lightning Network.

Previously, Diamond Hands made headlines for its partnership with bitcoin-only gaming company ZEBEDEE in which the two organizations, along with Mimesis Capital, joined forces to strengthen Lightning adoption in Asia.

Consequently, Mimesis Capital, being a bitcoin-focused family office, planned to leverage the connections of Diamond Hands to offer business consultation to firms looking to integrate the Lightning Network into their professions. In addition, ZEBEDEE sets its sights on building out infrastructure to allow heightened levels of bitcoin gaming in the region.

“The Diamond Hands community has played an integral role for Lightning adoption for both individuals and enterprises in Japan since last year, but we are looking to push this even further by collaborating with international companies and communities,” Koji Higashi, co-organizer of Diamond Hands had previously stated.

Jun 25

Thonny is an Ideal IDE for Teaching Python Programming in Schools

Running a Python program in Linux is as simple as executing the Python file in the terminal.

But that’s not very convenient for everyone and it doesn’t help you debug your programs. too raw.

There are several IDEs and text editors that can be used for Python development. The PyCharm community edition is available for Linux users.

I recently came across another IDE specifically crafted for Python beginners. I liked the idea of this application and hence I am sharing it with you here.

Thonny is a cross-platform, open source Python IDE for beginners

Thonny feels like the Python version of Eclipse in terms of UI and UX. And that’s not entirely a bad thing considering most C++ and Java beginners start with Eclipse and many stay with it afterward.

It’s not a new tool. It has been on the horizon for some years now. I don’t code in Python so I never discovered it until recently.

Dedicated to Python, Thonny has features that help Python beginners understand how their program behaves. Let’s take a look at those features.

Plug and play

Thonny comes with Python so you don’t need to do additional effort for installing Python. That’s not a big deal for Linux users as most distributions have Python installed by default.

The interface is simple. It gives you an editor where you can write your Python program and hit the Run button or use F5 key to play the program. The output is displayed at the bottom.

See variables

From the View-Variables, you can see the values of all the variables. No need to print them all.

Built-in debugger

Run your program step by step by using the debugger. You can access it from the top menu or use the Ctrl+F5 keys. You don’t even need the breakpoints here. You can go into big steps with F6 or in small steps with F7.

In small steps, you can see how Python sees your expressions. This is very helpful for new programmers to understand why their program is behaving in a certain manner.

That’s not it. For function calls, it opens a new window with separate local variables table and code pointer. Super cool!

Syntax error highlighter

Beginners often make simple syntax errors like missing paranthesis, quotes etc. Thonny is points it out immediately in the editor itself.

Local variables are also visually distinguished from globals.

Auto completion

You don’t have to type everything. Thonny supports auto code completion which helps in coding faster.

Access to system shell

From the Tools, you can access the system shell. From here you can install the new Python package or learn to handle Python from the command line.

Please note that if you use Flatpak or Snap, Thonny may not be able to access the system shell.

Manage Pip from GUI

Go to Tools and Manage packages. It opens a window and you can install Pip packages from this GUI.

Good enough features for learning Python, right? Let’s see how to

Jun 24

Chicago expands and activates quantum network, taking steps toward a secure quantum internet

“The Chicago quantum network presents researchers with unprecedented opportunities to transmit quantum information in a real-world environment and push the boundaries of what is currently possible with quantum security protocols,” said David Awschalom, the Liew Family Professor in Molecular Engineering and Physics at the University of Chicago, director of the Chicago Quantum Exchange, and director of Q-NEXT, a Department of Energy National Quantum Information Science Research Center at Argonne. “This extension enables scientists from academia, industry, and government labs to collaborate on advancing our fundamental understanding of quantum communication and develop a secure quantum internet.”

“While this network is impressive in its scope, it is even more important as a testbed of experimentation into how quantum networks can be used. We look forward to working with CQE to explore the development of quantum network architectures that connect quantum sensors and computers together in new, exciting and useful ways,” said Jay Lowell, chief scientist for Boeing’s Disruptive Computing and Networks team

The rise of quantum computers represents both an enormous opportunity and a fundamental threat. Once operational, they are expected to be able to solve the kinds of problems that are nearly impossible for ordinary computers and thus easily break current encryption. In April, lawmakers in Congress introduced the Quantum Cybersecurity Preparedness Act, which prioritizes timely quantum-proof encrypting of sensitive information so that bad actors cannot steal the data now and decrypt it when stronger quantum computers become reality.

Scientists believe that quantum networks can draw upon the laws of quantum mechanics to be made virtually “unhackable.” Experts around the world have agreed that the implementation of quantum-secure communication networks is one of the most important technological frontiers of the 21st century.

Hack-proof encrypting can be done using quantum key distribution, which is the quantum security technology that was activated on the Chicago area quantum network on June 6, 2022, in a collaboration with Toshiba. Key distribution is a routine part of most internet security, but quantum technology can make it virtually impervious to hacking. In quantum key distribution, secret digital keys are distributed using quantum security protocols among parties communicating sensitive data. The quantum keys are sent through a network of optical fiber via particles of light, called photons, using the photons’ quantum properties to encode the bits that make up the keys. Any attempt to intercept the photons destroys the information they hold.

This kind of unhackable communication has applications anywhere secure communication is particularly vital, including industries such as finance, defense, voting and others.

“We’re thrilled to continue our partnership with the Chicago Quantum Exchange as trials begin on the network,” said Yasushi Kawakura, vice president of digital solutions at Toshiba. “It’s paramount that we develop quantum-proof technology to proactively defend against threats from the quantum future.”

—This story was first published by the Chicago Quantum Exchange.