Category Archives: Bash

Can’t connect to MySQL server on ‘127.0.0.1’ (61)

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I downloaded the MySQL server and installed it on my Mac, but every time I tried to connect to it, I got the following error:

Can’t connect to MySQL server on ‘127.0.0.1’ (61)

There can be many reasons for this error, most of which are generously covered online, but in my case it was because MySQL was running on port 3307. I think the port was updated in a recent MySQL server update, because I’ve never had this issue with a previous MySQL server version. Here’s how to check if you have the same problem, and how to change it to port 3306 (unless you want to keep it running on port 3307).

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Recovering your VPS from the OpenSSL Heartbleed vulnerability

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There are a lot of great resources out there with regard to the Heartbleed (CVE-2014-0160) vulnerability, but let’s look at what this means specifically for anyone who operates their own VPS.

We’ll determine whether this bug directly applies to you, if you are affected, how to recover from the vulnerability, and what to do after the vulnerability has been patched.

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How to update and deploy WordPress as a Git submodule

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WordPress 3.8.2, a security release, came out yesterday. Now, if you’re already on WordPress 3.8, your WordPress installation will most likely automatically update, but if you are using Git to manage WordPress as a submodule, and have auto-update disabled, you have to do that manually.

That said, it’s still super easy to do. It definitely outweighs not having a version control system.

Let’s look at the Git commands required to update WordPress from 3.8.1 to 3.8.2. Note that this will work for updating any version.

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Git error when switching branch after replacing directory with submodule

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I’m working on updating several WordPress sites. Part of each site’s update includes converting the WordPress core and all frequently used plugins to Git submodules. While many recommend staying away from submodules all together, I’ve been using them for a while now and never had any issues, that is, until today. Luckily, it’s nothing severe, and in my case, pretty straight forward to fix (once you know the solution), but because the error didn’t make any sense, I’ve decided to document it here.

The main problem is that I’m unable to checkout the master branch after adding the submodules on the develop branch. Git complains with the following error:

error: The following untracked working tree files would be overwritten by checkout

That said, let’s look at the problem in detail and how we can solve it.

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Increase space on fixed VirtualBox VDI disk containing Windows 7 on Mac

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I use VirtualBox on my Mac to have other operating systems at my disposal. One of my appliances contains a copy of Windows 7 with a fixed, 25GB disk. I’ve run out space and was looking for an easy way to increase it.

I came across the modifyhd command, which in theory let’s you increase the disk space, but it only works on dynamic disks. I opted for performance (fixed disk) when I set up the appliance, and this minor inconvenience is the price.

There are several tutorials out there, but many of them require third-party applications, either on the Mac or in Windows side. The thing is, even without those utilities, it’s fairly easy to increase your disk space.

What we’ll do is create a bigger disk, clone the contents from the small disk to the big disk, and then increase our Windows partition.

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