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10%
Migrating CentOS to Rocky Linux with migrate2rocky
06.10.2022
Home »  Archive  »  2022  »  Issue 71: Kuber...  » 
Photo by Ray Hennessy on Unsplash
distributions based on RHEL 8, the migration process is fairly simple. The first step is to make sure you have enough space on your partitions: 250MB on /usr , 1.5GB on /var , and 50MB on /boot . Failure
10%
Automated OpenStack instance configuration with cloud-init and metadata service
05.02.2019
Home »  Archive  »  2019  »  Issue 49: Anato...  » 
Lead Image © jeka81, 123RF.com
', 'makecache'] with allowed return codes [0] (shell=False, capture=False) ... 2018-10-17 22:00:06,125 - util.py[DEBUG]: Running command ['yum', '-t', '-y', 'upgrade'] with allowed return codes [0] (shell
10%
High-performance Python – compiled code and C interface
01.08.2019
Home »  Archive  »  2019  »  Issue 52: Stop...  » 
Lead Image © Konrad Bak, 123RF.com
total x = numpy.arange(10_000_000); %time sum(x) CPU times: user 1.63 s, sys: 0 ns, total: 1.63 s Wall time: 1.63 s Next, add Numba into the code (Listing 2) so the @jit decorator can be used. (Don
10%
Darshan I/O analysis for Deep Learning frameworks
27.09.2021
Home »  Archive  »  2021  »  Issue 65: 7 Em...  » 
Photo by Michaela Murphy on Unsplash
Bps. The STDIO interface (STDIO I/O functions) transferred 0.0MiB at 33.46MiBps. The amount of data transferred through the STDIO interface is so small that the output shows 0.0MiB, which would indicate less than
10%
NetworkManager at the command line
17.06.2017
Home »  Archive  »  2017  »  Issue 39: Conta...  » 
Lead Image © godrick, 123RF.com
on your system: # nmcli device status DEVICE TYPE STATE CONNECTION wls1 wifi connected -- enp0s25 ethernet connected -- lo loopback unmanaged -- To configure the Ethernet card with a static IPv4 address
10%
A self-healing VM system
07.06.2019
Home »  Archive  »  2019  »  Issue 51: Self-...  » 
Lead Image © THISSATAN KOTIRAT , 123RF.com
with timeout 15 seconds 03 if status != 0 for 3 cycles then exec "/usr/bin/ansible-playbook rebuild_node.yml" 04 if status != 0 for 3 cycles then exec "/usr/bin/mail -s 'Node 5 ping failed
10%
Port Knocking
07.10.2014
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
Lead Image © rasslava, 123RF.com
seq_timeout = 10 08 tcpflags = syn 09 command = /usr/sbin/iptables -A INPUT -s \ %IP% -p tcp --dport 22 -j ACCEPT 10 11 [closeSSH] 12 sequence = 9000
10%
Manage OpenVPN keys with Easy-RSA
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Lead Image © Orlando Rosu, 123rf.com
the Debian-based, distributions install it along with openvpn – one exception being Ubuntu, which only offers easy-rsa starting with Cosmic Cuttlefish (Ubuntu version 18.10) [3]. The successor, Easy-RSA 3.0
10%
Security in the AWS cloud with GuardDuty
09.04.2019
Home »  Archive  »  2019  »  Issue 50: Bpfilter  » 
Lead Image © xcfoto, 123RF.com
backend "s3" { 07 region = "eu-west-1" 08 bucket = "chrisbinnie-terraformstate" 09 key = "guardduty.tfstate" 10 encrypt = true 11 } 12 } 13 14 resource "aws
10%
Static code analysis finds avoidable errors
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Lead Image © Andrey KOTKO, 123RF.com
* argv []) 06 /*@requires maxRead(argv) >= 1 @*/ 07 /*@-modfilesys@*/ 08 { 09 /*@-initallelements@*/ 10 char buffer [BUFSIZE] = {'\0'}; 11 /*@+initallelements@*/ 12 if ( ( argc

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