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17%
Obtain certificates with acme.sh
27.09.2021
Home »  Archive  »  2021  »  Issue 65: 7 Em...  » 
Lead Image © Stuart Miles, 123RF.com
/.acme.sh/www.example.com/www.example.com.cer -noout -issuer -subject -dates -serial issuer= /C=US/O=Let's Encrypt/CN=R3 subject= /CN=www.example.com notBefore=Feb 21 13:00:28 2021 GMT notAfter=May 22 13:00:28 2021 GMT serial=03B46ADF0F26B94C19443669
17%
Secure and seamless server access
25.09.2023
Home »  Archive  »  2023  »  Issue 77: Secur...  » 
Photo by Michael D on Unsplash
– assuming you have a Cloudflare account and zone: 1. Create a tunnel and collect its secret token. 2. Add a tunnel configuration specifying the tunnel behavior. 3. Add a DNS entry for Tunnel – it has
17%
High-availability workshop: GFS with DRBD and Pacemaker
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Maxim Borovkov, 123RF.com
were delivered as part of the RHCS scope. Thus, up to RHCS 3.0, everything was fine if you wanted Pacemaker and GFS to cooperate. But Red Hat changed its policy in Red Hat Cluster Suite 3.1, deciding
17%
Exploring dhcpy6d, a DHCP server for IPv6 networks
03.12.2015
Home »  Archive  »  2015  »  Issue 30: OpenD...  » 
Lead Image © Paul Herbert, 123RF.com
with the client; 547 with the server). Several options are available for DHCP in IPv6, including Dibbler [2], Internet Systems Consortium (ISC) DHCPv6 [3], and WIDE-DHCPv6 [4], and each has a slightly different
17%
Discover system vulnerabilities and exploits
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Photo by Charles on Unsplash
tools are available for testing your own systems. Of course, I assume you will only target your infrastructure and not that of others. Many Options With an image size of about 3.5GB, Kali Linux
17%
Portable home directory with state-of-the-art security
03.02.2022
Home »  Archive  »  2022  »  Issue 67: syst...  » 
Lead Image © SOMYOT TECHAPUWAPAT , 123RF.com
" costs a good $4,000 (about EUR3,600). However, if the blueprint for an innovative machine or the company's current tax return is stored on the device and it falls into the wrong hands, somebody
17%
Docker and Podman environments on Windows and Mac machines
28.11.2021
Home »  Archive  »  2021  »  Issue 66: Inci...  » 
Lead Image © bowie15 , 123RF.com
.14, although you can still resort to Docker Machine [3] in this case, which creates a virtual Linux system on the local host that you can then use to access the Docker engine. The example in Figure 1 uses
17%
Kea, the ISC's successor to the DHCP daemon
03.08.2023
Home »  Archive  »  2023  »  Issue 76: Energ...  » 
Photo by Markus Winkler on Unsplash
in 2014. At the time of writing, the available Kea versions were 2.2.0 (July 2022, Current-Stable) and 2.3.6 (March 2023, Experimental-Development). Most distributions have prebuilt Kea packages
17%
Netcat – The Admin’s Best Friend
20.08.2012
Home »  Articles  » 
 
examplehost.tld 22 If firewalling is in place and you need to originate your connection from a specific IP address to open a port, entering # nc -s 1.2.3.4 examplehost.tld 8181 will connect to examplhost
17%
Netcat – The admin's best friend
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© Dmitry Rukhlenko, 123RF.com
seconds, for example: # nc -p 16000 -w 30 examplehost.tld 22 If firewalling is in place and you need to originate your connection from a specific IP address to open a port, then you can enter: # nc -s 1.2.3

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