HyperFlex Certified Infrastructure for SAP HANA

HyperFlex Certified Infrastructure for SAP HANAWe continue to acquaint you with the Cisco HyperFlex hyper-convergent system and in this article we will talk about HyperFlex-certified infrastructure for SAP HANA. 3r361  
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In October 201? SAP certified HyperFlex to launch SAP HANA. 3r361  
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The SAP HANA (High-Performance Analytic Appliance) is a high-performance data storage and processing platform based on in-memory computing. The main task of HANA is to provide analytical data with minimal response time, as well as support for SAP transactional applications. 3r361  
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The SAP landscape consists of application servers and ...
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Examples of calculating the "availability ratio" for sets of network equipment

Examples of calculating the "availability ratio" for sets of network equipment
 
 
The theory and the main points on the methodology for calculating the "readiness factor" were described by me earlier in this article .
 
 
In this publication, we calculate the "availability ratio" of two sets of carrier-class network equipment installed in each telecommunications cabinet and compare it with the calculation of the "availability factor" for a set of equipment without duplicated elements.
 
 
Why do you need to do calculations of the "availability ratio" for different cases of equipment layout?
 
 
We have data on calculating the "availability ratio" in the final results may be ...
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Password reset on Cisco ASA without downtime for active /standby failover scheme

Recently I encountered a problem: the client has two Cisco ASA 5512-x, which work in the active /standby mode. The client forgot to update the passwords and all users have expired password. ASA when trying to log in just reports the expiry date and does not give the chance to change the password. Since the expiration date has expired for all users, it was not possible to connect and change the password in any way. It has always been an iron variant to reset the password by changing the register, but there's no getting around without downtime. This option was not suitable. It was decided to use ...
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The practice of implementing Cisco ISE. The view of the engineer

Cisco ISE is a tool for creating an access control system for the corporate network. That is, we control who is connected, where and how. We can determine the client device, how much it corresponds to our security policies, and so on. Cisco ISE is a powerful mechanism that allows you to clearly control who is online and what resources it uses. We decided to talk about our most interesting projects based on Cisco ISE and at the same time to recall a couple of unusual solutions from our practice.
 
 
The practice of implementing Cisco ISE. The view of the engineer  
 

What is Cisco ISE


 
The Cisco Identity Services Engine (ISE) is a solution for controlling access ...[/h]
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Massive attack on Cisco

Today (Friday) in the evening twice received a notification of an attack on Cisco routers. As a result of a successful attack, the configuration is deleted.
 
Massive attack on Cisco
 
 
 
 
I hope this information from the IX newsletter will be useful:
 
We are forced to draw your attention to the fact that the botnet, ? is currently active on the network.  
which infects Cisco devices.
 
 
According to the data available to us, as a result of this virus, the configuration
is completely removed.  
network device and you need to reconfigure via a remote console.
 
 
Operational vulnerability CVE-2018-0171
 
(https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-smi2)
 
 
Note that the virus scans the network for the open port TCP 4786.
 
 
The ...
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Load testing script for checking the compliance of the current communication channel parameters with the claimed

Problems


 
In organizations using leased from the communication operators data transmission channels VPN /Internet to build a corporate branch network, sooner or later there can be a situation where it suddenly becomes clear that the channels to some remote units do not meet the stated requirements for bandwidth, or with a small load of channels there are losses that affect the quality of network services.
 
 
At the same time, the monitoring system regularly monitors the availability of channels, the losses on them, and the delay, but due to the fact that the communication channels are not ...[/h]
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Home wireless network on the Cisco Mobility Express hands

Home wireless network on the Cisco Mobility Express handsteapot. How it all started  As usual, such thoughts come when there is nothing to do. So, being on the sea, I thought: why not do home seamless fast wi-fi As luck would have it, my father-in-law bought Netgear Orbi, which worked surprisingly well.   What I had at that time was  Residential house for two owners with a reinforced concrete wall in the middle; 5 different routers (accumulated) connected through a Cisco gigabit switch, one of which - the Asus RT-N66U - also served as a router.  Honestly, I would not say that everything worked badly: it was strained by the fact that customers ...
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Conference DEFCON 16. "Criminal development of iOS Cisco". Felix Lindner, head of Recurity Labs

The next point of my presentation is devoted to the frequently asked question about the work of Cisco centers. Why Cisco? Because they occupy 92% of the market for the sale of routers costing between $ 1500 and 72% of the switch market. We will also discuss the Juniper software, which, from the point of view of hacking, and from the point of view of protecting their security, is open source software based on FreeBSD. Therefore, for us it is not interesting. If we consider cheap home routers from the same points of view, we will see that they have built in classic Linux.
 
 
Today we will consider ...
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Training FastTrack. "Networking basics." "Understanding of Cisco Architecture Games (overview)". Eddie Martin. December, 2012

About a year ago, I noticed an interesting and fascinating series of lectures by Eddie Martin, which is incredibly intelligible, thanks to his history and examples from real life, as well as his tremendous experience in teaching, allows him to gain an understanding of quite complex technologies.
 
 
Training FastTrack. "Networking basics." "Understanding of Cisco Architecture Games (overview)". Eddie Martin. December, 2012  
 
We continue the cycle of 27 articles based on his lectures:
 
 
01/02: "Understanding the OSI model" Part 1 / Part 2
 
03: "Understanding the Cisco Architecture"
 
04/05: "...
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Training FastTrack. "Networking basics." "The Value of Cisco Security Products." Eddie Martin. December, 2012

About a year ago, I noticed an interesting and fascinating series of lectures by Eddie Martin, which is incredibly intelligible, thanks to his history and examples from real life, as well as his tremendous experience in teaching, allows him to gain an understanding of quite complex technologies.
 
 
Training FastTrack. "Networking basics." "The Value of Cisco Security Products." Eddie Martin. December, 2012  
 
We continue the cycle of 27 articles on the basis of his lectures:
 
 
01/02: "Understanding the OSI model" Part 1 / Part 2
 
03: "Understanding the Cisco Architecture" ...
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