daniloaz.com https://www.daniloaz.com/en/ GNU/Linux, Open Source, Cloud Computing, DevOps and more Fri, 23 Sep 2022 18:12:24 +0000 en-US hourly 1 https://wordpress.org/?v=6.0.2 https://www.daniloaz.com/wp-content/uploads/2016/10/cropped-logo-daniloaz-imagotipo-1-100x100.png daniloaz.com https://www.daniloaz.com/en/ 32 32 How to quickly import all records from a Route53 DNS zone into Terraform https://www.daniloaz.com/en/how-to-quickly-import-all-records-from-a-route53-dns-zone-into-terraform/ https://www.daniloaz.com/en/how-to-quickly-import-all-records-from-a-route53-dns-zone-into-terraform/#respond Tue, 08 Feb 2022 20:15:51 +0000 https://www.daniloaz.com/?p=4558/ The terraform import command allows you to import into HashiCorp Terraform resources that already existed previously in the provider we are working with, in this case AWS. However, it only allows you to import those records one by one, with one run of terraform import at a time. This, apart from being extremely tedious, in

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]]> https://www.daniloaz.com/en/how-to-quickly-import-all-records-from-a-route53-dns-zone-into-terraform/feed/ 0 Script to automatically change all gp2 volumes to gp3 with aws-cli https://www.daniloaz.com/en/script-to-automatically-change-all-gp2-volumes-to-gp3-with-aws-cli/ https://www.daniloaz.com/en/script-to-automatically-change-all-gp2-volumes-to-gp3-with-aws-cli/#comments Tue, 16 Feb 2021 12:34:23 +0000 https://www.daniloaz.com/?p=4377/ Last December Amazon announced its new EBS gp3 volumes, which offer better performance and a cost saving of 20% compared to those that have been used until now (gp2). Well, after successfully testing these new volumes with multiple clients, I can do nothing but recommend their use, because they are all advantages and in these

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]]> https://www.daniloaz.com/en/script-to-automatically-change-all-gp2-volumes-to-gp3-with-aws-cli/feed/ 18 How to automatically update all your AWS EC2 security groups when your dynamic IP changes https://www.daniloaz.com/en/how-to-automatically-update-all-your-aws-ec2-security-groups-when-your-dynamic-ip-changes/ https://www.daniloaz.com/en/how-to-automatically-update-all-your-aws-ec2-security-groups-when-your-dynamic-ip-changes/#comments Tue, 12 Jan 2021 20:17:07 +0000 https://www.daniloaz.com/?p=4390/ One of the biggest annoyances when working with AWS and your Internet connection has a dynamic IP is that when it changes, you immediately stop accessing to all servers and services protected by an EC2 security group whose rules only allow traffic to certain specific IP’s instead of allowing open connections to everyone (0.0.0.0.0/0). Certainly the

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]]> https://www.daniloaz.com/en/how-to-automatically-update-all-your-aws-ec2-security-groups-when-your-dynamic-ip-changes/feed/ 3 15 Tips and Tools for Successful Remote Working after Covid-19 https://www.daniloaz.com/en/15-tips-and-tools-for-successful-remote-working-after-covid-19/ https://www.daniloaz.com/en/15-tips-and-tools-for-successful-remote-working-after-covid-19/#respond Sun, 15 Mar 2020 20:32:16 +0000 http://www.daniloaz.com/?p=4335/ There are many people and companies that due to the coronavirus crisis (Covid-19) are being forced to adopt different forms of remote working these days. As an architect of cloud solutions (Cloud Computing) and freelance system administrator I have been working this way successfully for many years, so some of them are asking me during

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]]> https://www.daniloaz.com/en/15-tips-and-tools-for-successful-remote-working-after-covid-19/feed/ 0 How to use 2 network interfaces on the same AWS subnet in Linux https://www.daniloaz.com/en/how-to-use-2-network-interfaces-on-the-same-aws-subnet-in-linux/ https://www.daniloaz.com/en/how-to-use-2-network-interfaces-on-the-same-aws-subnet-in-linux/#respond Fri, 06 Oct 2017 19:52:28 +0000 http://www.daniloaz.com/?p=4269/ The following Linux procedure describes how to use at the same time 2 network interfaces connected to the same AWS subnet and, which is more important, how to make both communication works well internally (between hosts on the same subnet) and also externally (both interfaces visible from the Internet). This can be useful for example

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]]> https://www.daniloaz.com/en/how-to-use-2-network-interfaces-on-the-same-aws-subnet-in-linux/feed/ 0 How to perform MySQL/MariaDB backups: mysqldump command examples https://www.daniloaz.com/en/how-to-perform-mysql-mariadb-backups-mysqldump-command-examples/ https://www.daniloaz.com/en/how-to-perform-mysql-mariadb-backups-mysqldump-command-examples/#respond Thu, 14 Sep 2017 18:18:34 +0000 http://www.daniloaz.com/?p=4166/ Although there are different methods for backing up MySQL and MariaDB databases, the most common and effective one is to use a native tool that both MySQL and MariaDB make available for this purpose: the mysqldump command. As its name suggests, this is a command-line executable program that allows you to perform a complete export

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]]> https://www.daniloaz.com/en/how-to-perform-mysql-mariadb-backups-mysqldump-command-examples/feed/ 0 Linux remote control from your smartphone via SSH button widgets https://www.daniloaz.com/en/linux-remote-control-from-your-smartphone-via-ssh-button-widgets/ https://www.daniloaz.com/en/linux-remote-control-from-your-smartphone-via-ssh-button-widgets/#respond Sat, 15 Jul 2017 16:45:47 +0000 http://www.daniloaz.com/?p=3961/ In this post I will tell you about an Android app that is extremely useful to run commands remotely on a Linux computer: Hot Button SSH Command Widget. This application allows you to launch conveniently any command you want on a remote computer through SSH only with the push of a button on the screen of

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]]> https://www.daniloaz.com/en/linux-remote-control-from-your-smartphone-via-ssh-button-widgets/feed/ 0 Partitioning and resizing the EBS Root Volume of an AWS EC2 Instance https://www.daniloaz.com/en/partitioning-and-resizing-the-ebs-root-volume-of-an-aws-ec2-instance/ https://www.daniloaz.com/en/partitioning-and-resizing-the-ebs-root-volume-of-an-aws-ec2-instance/#comments Sat, 08 Jul 2017 12:28:43 +0000 http://www.daniloaz.com/?p=4066/ One of the few things I do not like about the AWS EC2 service is that all available images (AMIs) used to to launch new instances require a root volume of at least 8 or 10 GB in size and all of them also have a single partition where the root filesystem is mounted on.

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]]> https://www.daniloaz.com/en/partitioning-and-resizing-the-ebs-root-volume-of-an-aws-ec2-instance/feed/ 27 Differences between ASLR, KASLR and KARL https://www.daniloaz.com/en/differences-between-aslr-kaslr-and-karl/ https://www.daniloaz.com/en/differences-between-aslr-kaslr-and-karl/#comments Fri, 07 Jul 2017 13:22:42 +0000 http://www.daniloaz.com/?p=4046/ Following the release of the Linux Kernel 4.12, which for the first time brings the KASLR feature enabled by default, and almost simultaneously the announcement of a feature called KARL in OpenBSD, I found it interesting to clarify the differences between these security techniques, since I think that the combination of both will be very

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]]> https://www.daniloaz.com/en/differences-between-aslr-kaslr-and-karl/feed/ 1 How to create a Sentilo AWS EC2 instance from an OVA file https://www.daniloaz.com/en/how-to-create-a-sentilo-aws-ec2-instance-from-an-ova-file/ https://www.daniloaz.com/en/how-to-create-a-sentilo-aws-ec2-instance-from-an-ova-file/#comments Wed, 28 Jun 2017 11:50:59 +0000 http://www.daniloaz.com/?p=4033/ Sentilo is an open source software designed by openTrends for the exchange and processing of information from thousands of sensors and actuators, acting as an interface between them and the various applications that want to collect and make use of the information they provide. Thus, it fits well within the Smart City architecture and has the

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