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17%
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
17%
Shared Storage with NFS and SSHFS
12.09.2018
Home »  HPC  »  Articles  » 
to the nodes. Given that I have already installed software to /usr/local/ , I tend to export that directory in addition to /home . A bonus of sharing /home is that the user’s home directories include SSH keys
17%
Minifying container images with DockerSlim
04.08.2020
Home »  Archive  »  2020  »  Issue 58: Graph...  » 
Lead Image © Maggie Molloy, 123RF.com
='GET /' docker-slim[build]: info=http.probe.call status=200 method=GET target=http://172.17.0.3:80/ attempt=1 time=2020-11-11T12:52:01Z docker-slim[build]: info=http.probe.summary total=1 failures=0 successful=1
17%
Secure and seamless server access
25.09.2023
Home »  Archive  »  2023  »  Issue 77: Secur...  » 
Photo by Michael D on Unsplash
of Cloudflare Tunnel is that it supports multiple protocols, including HTTP, HTTPS, SSH, TCP, and UDP, so you can securely access a wide range of applications and services. Also, in the case of HTTP(S), you do
17%
Versioned backups of local drives with Git
28.11.2022
Home »  Archive  »  2022  »  Issue 72: OpenS...  » 
development environment, the JGit tool, written in Java, is included. Unlike the conventional Git client, JGit also handles the Amazon Simple Storage Service (S3) protocol. If you want to store your repository
17%
Shared Storage with NFS and SSHFS
04.10.2018
Home »  Archive  »  2018  »  Issue 47: Findi...  » 
Lead Image © Oleksiy Mark, 123RF.com
an alternative that has more security. SSHFS Filesystem in Userspace (FUSE) [3] offer several attractive features. Such filesystems are easy to code because they are in user space (have you tried getting
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
17%
A Distributed SQL Database
03.08.2023
Home »  Archive  »  2023  »  Issue 76: Energ...  » 
Photo by Sonika Agarwal on Unsplash
store the backup in cloud storage services like Amazon S3, Google Cloud Storage, or Azure Blob Storage. For example, to store the backup in an S3 bucket, you would use a command like BACKUP DATABASE mydb
17%
Remote maintenance and automation with RPort
07.04.2022
Home »  Archive  »  2022  »  Issue 68: Autom...  » 
Photo by Claudia Soraya on Unsplash
is also possible. A VM with Debian 10 (Buster) or 11 (Bullseye) and 1GB of RAM is all you need for the RPort server. The costs amount to $3-$7 per month, depending on the cloud provider. For an RPort
17%
GlusterFS Storage Pools
17.11.2016
Home »  HPC  »  Articles  » 
. Figure 1: Client systems access the desired GlusterFS volume via a single namespace. (Red Hat CC BY-SA 3.0 [1]) When you look under the hood of GlusterFS, it is striking that the filesystem

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