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19%
SPDY HTTP Protocol
08.06.2012
Home »  Articles  » 
 
, real-time updates, and the appearance of 10Gb networks (or even some 100Gbps backbones) have changed the shape of the web. The IETF Working Group “Hypertext Transfer Protocol Bis (httpbis)” is looking
19%
DDoS protection in the cloud
15.08.2016
Home »  Archive  »  2016  »  Issue 34: Softw...  » 
Lead Image © Amy Walters, 123RF.com
, such attacks can reach bandwidths of 300GBps or more. Admins usually defend themselves by securing the external borders of their own networks and listening for unusual traffic signatures on the gateways
19%
Hunt down vulnerabilities with the Metasploit pen-testing tool
28.11.2021
Home »  Archive  »  2021  »  Issue 66: Inci...  » 
Lead Image © bluebay, 123rf.com
without entering a password. That said, it does makes sense to share your own experiences with the Metasploit community – for example, on GitHub [6]. Armitage and Meterpreter To get a quick taste
19%
The best performance yet
26.01.2025
Home »  Archive  »  2025  »  Issue 85: Monit...  » 
Lead Image © Lucy Baldwin, 123RF.com
Recently, I analyzed the performance of new storage options on Raspberry Pi 5 boards [1], focusing on the Pi 5's USB bus improvements (the USB 3 ports are now independently capable of 5Gbps each
18%
Environment Modules
23.02.2012
Home »  HPC  »  Articles  » 
in the situation where you want to run multiple jobs each with a different compiler/MPI combination. For example, say I have a job using the GCC 4.6.2 compilers using Open MPI 1.5.2, then I have a job using GCC 4
18%
Getting Started with HPC Clusters
05.06.2013
Home »  HPC  »  Articles  » 
+ (OC)/1866 (OC)/1600 (OC)/1333/1066/800 memory; 32GB maximum memory, dual-channel; 2 PCIe 2.0x16 slots (x16, x4), 2 PCI slots; 5x SATA 6Gbps connectors, RAID-0/1/10; Realtek 8111E GigE NIC 1
18%
Protecting Samba file servers in heterogeneous environments
09.06.2018
Home »  Archive  »  2018  »  Issue 45: Autom...  » 
Photo by rawpixel on Unsplash
[::]:* LISTEN As you can see, only port 22 for SSH is open for incoming connections for both IPv4 and IPv6. If you are not (yet) using IPv6 on your network, you should disable it, because what good
18%
Pen Testing with netcat
14.05.2013
Home »  Articles  » 
 
will work if the netcat listener is running as root (Figure 6). Figure 6: Adding user david with UID 0. Next, I need to give the user a password
18%
Enlarging the TCP initial window
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Photo by Jani Brumat on Unsplash
private homes in large cities use fiber optics with transmission rates of 1GBps. However, the basic concept of TCP has not changed in all these years. TCP does not know the maximum transfer rate
18%
Endlessh and tc tarpits slow down attackers
02.02.2021
Home »  Archive  »  2021  »  Issue 61: Secur...  » 
Lead Image © Yewkeo, 123RF.com
those exact packages to keep your system trim. The commands in Listing 7 start up the SSH daemon (sshd) and tell you that it is listening on port 22. IPv6 and IPv4 connections are open on the default port

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