So I keep forgetting how to setup SSH keys. Here’s how to create an SSH key:

Step 1. Generate an SSH Key
$ ssh-keygen -t rsa -C "my_email@cachomenguito.com"

Press Enter.

It should show something like this:
Generating public/private rsa key pair.
Enter file in which to save the key (/home/cachomenguito/.ssh/id_rsa):

Just press Enter to have it create the key in /home/cachomenguito/.ssh/id_rsa

After that it will show something like this:

Enter passphrase (empty for no passphrase):
Enter same passphrase again:

I just pressed enter for both to have no passphrase.

It should then show something like this:

Your identification has been saved in /home/cachomenguito/.ssh/id_rsa.
Your public key has been saved in /home/cachomenguito/.ssh/id_rsa.pub.
The key fingerprint is:
1b:c1:1e:a1:13:d1:17:11:12:16:d1:f1:15:15:15:18 my_email@cachomenguito.com
The key's randomart image is:
+--[ RSA 2048]----+
| E. . =|
| . o o |
| . + o . |
| . = o * * o |
| * + S + + |
| . + o + * |
| . . . |
| |
| |
+-----------------+

Step 2. Just go to /home/cachomenguito/.ssh and copy all the contents of id_rsa.pub

Voila! You now have an SSH Key!

So have you been wondering how to start your Apache server without having to enter the passphrase all the time? I have found two ways to do it. Here they are:

The first method is to create a script that contains the passphrase and configure your Apache to execute that script.

Just add this to your configuration file, if the variable is existing already please change it like so:
SSLPassPhraseDialog exec:/path/to/ssl_passphrase_file.sh

That file should have this as the contents:

#!/bin/sh
echo "mypassphrase"


The second method is to create a no password version of the key. Just run this command:
$ openssl rsa -in cachomenguito.com.key -out cachomenguito.com.key.nopass

Restart your apache server and voila! No need to enter the passphrase.

I would like to believe the second method is better especially if you have several virtual hosts in one server.

So what I wanted to happen was to duplicate a table in MySQL as a backup with the same attributes and constraints (collation, increment_id, etc.). So here are the commands:

First, this query will create a copy of the original table with all the constraints and attributes:
CREATE TABLE my_backup_table LIKE my_original_table;

my_backup_table is the new/duplicate table while my_original_table is the table you want to copy. If you notice, there are norecords in this table. So how do you insert the data from the original table to the new one?

Run this query:
INSERT INTO my_backup_table SELECT * FROM my_original_table;

And you’re about done. To restore it, just drop the original table and recreate it using the same process above.

Here’s how to extract a TAR file to a different location:

$ tar -C /usr/local/apache2/htdocs/ -xvf /home/mytarfile.tar

Explanation:

-C is the option to specify where to extract your TAR file.

/usr/local/apache2/htdocs/ is the specified path where to extract your TAR file.

-xvf are the options used to extract the TAR file

/home/mytarfile.tar is the tar file itself.

Disclaimer: The options i use are based on how the file was TAR-ed. In this case, it was:

$ tar -cvf mytarfile.tar *

I keep on forgetting on how to run an SQL file from the command line. So here’s how you run an SQL file from the command line.

shell> mysql db_name < script.sql > output.tab

In case you’re wondering what SDE means, it stands for Same Day Edit. Last January 8 2011, in Bacolod City, Philippines, I tried my hand at making an SDE for Ronnel and Leslie for their wedding day. It was quite a challenge considering that it was my first time and I didn’t know what to expect. Slow laptops, large files, card getting full, working as fast as I can so that this can be showed at the reception. Successfully pulled it off and I was quite satisfied with the result. Needs more improvement! So here’s the video.

Gear: Canon 7D, 50mm f1.8 II, 70-200mm f4L IS USM, 17-40mm f4L USM
Special thanks to: Wedding Passport, Ronnel and Leslie and Jade Saducas for helping me out.

Practiced taking and editing a video. I used a Canon 7D and used iMovie for editing the video. Was quite disappointed with the fact that in iMovie there was a glitch. The glitch was that when you slow down a clip to speeds other than what they have preset, the sound on some of the clips “leak” out. Here it is.

Ian + Giselle E-Session

Featuring:
Johan Sisno of Wedding Passport
Noli Perez of Mother Superior Land
Jade Saducas of Creole Cakes

1st Post!

Finally started to post stuff. This blog is gonna be about reminders, memories and information. Enjoy!