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Throw Down the Gauntlet
14.08.2018
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© bluebay, 123RF.com
 state="open" reason="syn-ack" reason_ttl="52"/> 0"/>0 ... 0
93%
DNSSEC-aware DNS caching with Unbound
01.08.2019
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Lead Image © Antonella Grandoni , Fotolia.com
, it is better to omit the -d so you can discover errors that could cause Unbound to stop directly. Unbound should be working now. You can test the Unbound DNS resolver from another computer with dig: dig @192.168.0 ... 52
92%
Samba pitfalls in daily operation
01.08.2019
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Lead Image © lightwise, 123RF.com
.SEC_FLAG_MAXIMUM_ALLOWED) Listing 3 ACL Error Message root@addc-01:~# samba-tool gpo aclcheck -U administrator Password for [EXAMPLE\administrator]: ERROR: Invalid GPO ACL O:DAG:DAD:PAI(A;OICI;0x001f01ff;;;DA)(A;OICI;0x001 ... 52
92%
Fedora Server 30 (x86_64)
01.08.2019
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packages: GCC 9, Bash 5.0, and PHP 7 ... 52
92%
Docker image security analysis
01.08.2019
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Photo by Rodolfo Sanches Carvalho on Unsplash
$ update-alternatives --config python3 With these commands, you can build a simple menu of sorts to populate your options (Figure 4). When you select 0 in Figure 4, for example, you force the use ... 52
92%
Get started with OpenShift
01.08.2019
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Lead Image © andegro4ka, 123RF.com
Docker driver for KVM: $ curl -L https://github.com/dhiltgen/docker-machine-kvm/releases/download/v0.10.0/docker-machine-driver-kvm-ubuntu16.04 -o /usr/local/bin/docker-machine-driver-kvm The eagle ... 52
92%
High-performance Python – compiled code and C interface
01.08.2019
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Lead Image © Konrad Bak, 123RF.com
]. It was run in a Jupyter notebook to get the timings. Listing 1 Python First Run Without Numba import numpy def sum(x): total = 0 for i in range(x.shape[0]): total +=x[i] return ... 52
92%
Registry for Docker images
01.08.2019
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Lead Image © Viktoriya Malova, 123RF.com
/docker-registry $ htpasswd -Bbn oliver T0Ps3crEt | sudo tee /etc/docker-registry/htpasswd oliver:$2y$05$lAmkjHRcR0.TK52/rHR/Pe86AGZqpRleXenHVT/eabFe8He5UZiPu $ docker run -p 5000:5000 --name registry -v /etc ... 52
92%
Build a honeypot with real-world alerts
01.08.2019
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Lead Image © Bruce Rolff, 123RF.com
. The takeaway is the -j LOG option (line 12), which logs port scanning behavior to a logfile with the iptables: prefix. Listing 1 iptable Rules 01 *filter 02 *filter 03 :INPUT ACCEPT [0:0] 04 ... 52
92%
Turbocharge your network with Zeroshell
01.08.2019
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Lead Image © Przemyslaw Koch, 123RF.com
) for the admin user. Next up, make sure Zeroshell is on the same subnet as the rest of the network. By default, Zeroshell assigns itself to the 192.168.0.x subnet. If your existing router is on the same subnet ... 52

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