AGIX Linux

AGIX Linux

Category: Content
Type: Blog Article

Generated 1 day ago

New blog articles detected

  • Find and Fix MySQL Performance Problems with Indexes

    So you have a MySQL database and it’s running like a dog. A slow dog, not one of those fast ones. This article is for you. Actually, this article is more of a story about a recent problem a client had with a large Magento database that had become too The post Find and Fix MySQL Performance Problems with Indexes appeared first on AGIX.

AGIX Linux

Category: Content
Type: Blog Article

Generated 1 week ago

New blog articles detected

  • Install ClamAV on CentOS 7 with Ansible

    This HowTo shows how to install ClamAV and schedule scans using Ansible. There are Ansible modules for this but it’s so simple that you might as well just do it yourself. Create your playbook. Put the following into a file called “ansible-play-install-clamav.yml”. --- - hosts: all sudo: yes tasks: - The post Install ClamAV on CentOS 7 with Ansible appeared first on AGIX.

AGIX Linux

Category: Content
Type: Blog Article

Generated 2 weeks ago

New blog articles detected

  • How to Expire (disable) a User Account using Ansible

    This is a mini-HowTo demonstrating how to disable or expire a user using Ansible. Put the following into a file called “playbook-expire-user.yml”. --- - hosts: all sudo: yes tasks: - name: Expire an existing user user: name: myusername expires : 1486509032 The above would be executed using the following command. The post How to Expire (disable) a User Account using Ansible appeared first on AGIX.

AGIX Linux

Category: Content
Type: Blog Article

Generated 3 weeks ago

New blog articles detected

  • Restrict access to Multiple files in Apache

    Apache has plenty of access control features that can help prevent unauthorised access to key parts of your site. This article is about giving a 404 (access denied) response when someone tries to access specific files on your site. In the examples below, we’ll be restricting access to two PHP The post Restrict access to Multiple files in Apache appeared first on AGIX.

  • Export and List your EC2 IP Addresses and other details The Easy Way

    Amazon doesn’t allow you to list or export your EC2 details using their web interface, at least not yet. Until then you have to use the “aws” command. Otherwise known as the “aws cli”. But it’s easier than you think. Get the “aws” cli tool from here: Windows: http://docs.aws.amazon.com/cli/latest/userguide/installing.html#install-msi-on-windows Mac The post Export and List your EC2 IP Addresses an...

  • Setup a web server, git and directory permissions like a pro

    Developers love by Git (or any repo, really) but we sysadmins generally don’t care. If the web-server is running and the modules are available, we’re happy! But there are times when a developer asks that a web-server be provisioned with the necessary php modules and also a place for them The post Setup a web server, git and directory permissions like a pro appeared first on AGIX.

  • Secure WordPress the Hardcore Way

    I’ve written about wordpress plenty of times and this time is on how to secure a wordpress installation. Specifically, i have been responsible for a few sites that’ve recently been hacked. Essentially the “bad guys” found a way to upload some files onto the sites and then execute php scripts The post Secure WordPress the Hardcore Way appeared first on AGIX.

  • Tripwire on CentOS 7

    Tripwire is a great tool to monitor your server for changes. Skip past my rant to get into the guts of it. Otherwise, enjoy! We all use wordpress because it’s easy to install, there’s plenty of people out there to create themes and it’s so easy to work with. The The post Tripwire on CentOS 7 appeared first on AGIX.

  • Add & Remove CloudWatch Alarms with AWS CLI

    All sysadmins need to know the state of the servers they look after. CloudWatch lets sysadmins monitor their Amazon AWS resources and be alerted when things go wrong. And by wrong, i mean “out of the norm”. For example, if the CPU goes above a percentage, we should be notified The post Add & Remove CloudWatch Alarms with AWS CLI appeared first on AGIX.

  • Remotely access MySQL on an OpenShift server

    OpenShift doesn’t allow remote access to MySQL gear. You have to use IPTables to work around this limitation. The good news is that it’s a simple process. This article is a walk-through showing how i’ve done it. First we need to get the application ID of the OpenShift application we’re The post Remotely access MySQL on an OpenShift server appeared first on AGIX.

  • Tired of waiting, have the results emailed to you

    Some commands take longer to complete than your willing to wait. In times like this you can have the results emailed to you with this very simple trick. Here’s a basic example: echo "apples" | mail -s "test" me@example.com - The above would send the email right away with the The post Tired of waiting, have the results emailed to you appeared first on AGIX.

  • Ansible Variables – a 5 minute Intro

    Ansible supports “variables” just like any scripting language. Actually, Ansible uses the YAML format and YAML supports variables. Confused, don’t be. It’s simple. You don’t need to know YAML to use Ansible and i bet you’ve already got things working with Ansible enough that you’re ready to start expanding your The post Ansible Variables – a 5 minute Intro appeared first on AGIX.

  • Hacking Redhat in times of Panic

    We recently had a client who couldn’t sudo to become root. They received an error indicating that the “/etc/sudoers” file was corrupt. Being security minded people, they’d prevented the root user from logging in via SSH – which is a good idea by the way. Their only options were to restore The post Hacking Redhat in times of Panic appeared first on AGIX.

AGIX Linux

Category: Content
Type: Blog Article

Generated 5 months ago

New blog articles detected

  • Auditors who ask IT people stupid questions

    Honestly, the next time i am on the receiving end of an IT audit and am asked if the workstations have antivirus installed, i’ll go crazy! It’s like all auditors... The post Auditors who ask IT people stupid questions appeared first on AGIX Linux.

  • Do this every time you log into a Linux server

    This is a list of things i do every time i log into a Linux server. It’s habit now and something you might consider doing too. Essentially we want to... The post Do this every time you log into a Linux server appeared first on AGIX Linux.

  • Rsync and the “Argument list too long” problem

    If you try to rsync a subset of many files from a single directory, you might get the error “Argument list too long”. Actually, you can get this error with... The post Rsync and the “Argument list too long” problem appeared first on AGIX Linux.

AGIX Linux

Category: Content
Type: Blog Article

Generated 5 months ago

New blog articles detected

  • Inbound and Outbound SMTP Design for No Spam

    Spam starts and ends with us technicians. It’s our servers that get compromised and it’s our servers that receive it at the other end. With this in mind, we need... The post Inbound and Outbound SMTP Design for No Spam appeared first on AGIX Linux.

  • Varnish, Apache and NginX – Side by Side

    This article explains how Varnish, Apache and NginX fit together and/or differ. Varnish is an excellent cache and speeds up web-sites significantly. Terminate the HTTP connection at Varnish on port... The post Varnish, Apache and NginX – Side by Side appeared first on AGIX Linux.

  • New Moodle Hosting with High Availability – Free for now

    AGIX is proud to be part of a very exciting project to build the Rolls-Royce or Moodle hosting services. The business is called Enterprise LMS (www.enterpriselms.com) and AGIX has been... The post New Moodle Hosting with High Availability – Free for now appeared first on AGIX Linux.

  • Create a Samba3 simple printer server

    In this article we’re adding a Samba 3 server to a Workgroup and configuring the Samba server to serve a printer. This article includes CUPS but not Printer Drivers. I’ve... The post Create a Samba3 simple printer server appeared first on AGIX Linux.

AGIX Linux

Category: Content
Type: Blog Article

Generated 5 months ago

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