Posts Tagged ‘Server’

(mt) MediaTemple migrated my Server and broke my LEMP stack. (Part 2)

If you’re joining me from part 1thank you. If you are just joining you may want to check out part 1.

    When I last left you I had just installed MySql and setup a root user with a strong password. Now I need to get all the domain web files and MySql Databases to my new server,  perserving permissions and ownership, hopefully. Before I accomplish any of this I need to create users and all their directories that hold the public web files for each domain. I am then going to create all the same databases and import all the database dumps. Lastly, I want to start Nginx and test all my old configuration files before activating them all.

I created new users first using useradd.

$useradd jabo

I then rsync’d each users files one at a time to try and preserve permissions. Notice I said “try” I later had to chmod each users web directory so they could have the correct ownership. The more advanced Linux users will know why, the UID # of each user didn’t match the UID on the old server but that is another post. So Rsync is awesome. I mirrored all my web files and sent them via ssh to my new server. In verbose mode of course.

$ rsync -r -a -v -e "ssh -l root" --delete /old/Server/path/ newserver.net:/webroot/path/

MySql is not my favorite from the command line but since this is a new server and I was in a rush I didn’t have time to install and setup PHPAdmin. Now this did not work for me as root. I had to make a dump using each database users username and password. That also meant I had to go rooting around in some of my users WordPress installs. not to tough.

$ /usr/bin/mysqldump -u root -p --opt >/web/root/alldatabases.sql

After a quick rsync of all the database files. I logged into MySQL from the command prompt then created new databases with the same passwords and usernames. Lastly, I restored each database with their respective user.

$ mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 162
Server version: 5.1.41-3ubuntu12.6 (Ubuntu)
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> create database testdb;
Query OK, 1 row affected (0.00 sec)
mysql> grant all on testdb.* to 'dbuser1' identified by 'db_user_pw';
Query OK, 0 rows affected (0.00 sec)
mysql> quit
Bye

Restore each database with the appropriate username and password.

$/bin/mysql -u username -ppassword databasename < /tmp/databasename.sql

With all that said and done I was finally ready to test if this all worked. I checked my Ngnix configuration files visually to make sure they made sense. I almost rubber ducked them but it was 3 am at the time, so the prospect of my girlfriend waking up to me talking to myself in front of a dim lit monitor was not appealing. I ran Nginx with the -t option and everything worked out. I then started Nginx and BEHOLD I have CONQUERED!

Now it didn’t work all gravy right out of the box. I was spawning like 100 PHP processes and my VPS Memory was zooming! With some help from Google and the Nginx Wiki I was able to trim Nginx to pre-migration levels. I still have lots of tweaking to do to make it run leaner and allowing MySQL to run for a few weeks before I tune. After all that I still stayed with MediaTemple. I really didn’t want to go through all that again with another hosts control panel I am not familiar with or worse C-panel.

UPDATE

Funny thing but two weeks later Media Temple decided to migrate the “new” VPS they gave me. Luckily, I got some attention from support, the next migration went well, and had no issues this time around. I know now what went wrong and I know how to prevent it in the future.

(mt) MediaTemple migrated my Server and broke my LEMP stack. (Part 1)

 Disclaimer:

First I have to  start by saying this is mostly my fault. (mt) MediaTemple has been good to me. They even emailed me to tell me that they where going to migrate my server to newer hardware. I should have taken the time to do it myself, but I am lazy. They also sent me an email telling me I had to do nothing. Luckily, support is very understanding and they lent me a free (VE) for 30 days to configure and migrate my configuration myself.

 

The Nitty Gritty

 After (mt) MediaTemple migrated my server I found all the web roots for the domains I managed changed. Blogs and php files would not load able to load properly. I also discovered that Apache was installed and Nginx was not started, although installed. I did try stopping Apache but there were still so many things going wrong I decided to start fresh. Plus it would give me a chance to upgrade my LEMP Stack to a more current version. I had two failed tries, the caveat being you had to load the stack in order. Installing Mysql before Nginx causes apt-get to install Apache. Before starting I had to secure my server by changing the /tmp directory and updating my root password. You should consider securing your server further.

I choose to break this up into two post because it would have been very long. Not to mention I took a nap in between.

Here were my steps:

    1. Install an OS. I chose Ubuntu 11.04 Natty Narwhal.
      1. I ran into an issue were I received an error updating
        1. perl: warning: Please check that your locale settings ubuntu
          1. perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = “en_US.UTF-8″, LC_ALL = “en_US.UTF-8″, LANG = “en_US.UTF-8″ are supported and installed on your system. perl: warning: Falling back to the standard locale (“C”). locale: Cannot set LC_CTYPE to default locale: No such file or directory locale: Cannot set LC_MESSAGES to default locale: No such file or directory locale: Cannot set LC_ALL to default locale: No such file or directory
      2. I had to install the English base language pack
        1. apt-get install language-pack-en-base
        2. export LANGUAGE=en_US.UTF-8
      3. Then I had to change to the version of English I was using.
        1. export LANGUAGE=en_US.UTF-8
          export LANG=en_US.UTF-8
          export LC_ALL=en_US.UTF-8
          locale-gen en_US.UTF-8
          dpkg-reconfigure locales
    2. Install Nginx
      1.  apt-get install nginx
    3. Install PHP
      1. You can just install the php5-fpm package, but I am going to do some other stuff later, so I installed more packages.
        1. apt-get install php5-fpm php5-cli php5-common php5-curl php5-gd \
            php5-mcrypt php5-mysql php5-pgsql php5-sqlite php5-tidy php5-xmlrpc \
            php5-xsl php5-intl php5-imagick php5-xdebug php-apc php-pear
        2. Default is fine for now, but my default config caused my server to spawn 50 processes and consume 80% of my memory. I had to tweak it but that will be a different Blog post.
    4. Install MYSQL
      1. apt-get install mysql-server mysql-client
      2. You are required to setup a root password. Choose something Strong.
    5. I then created all my users for managing the multiple domains I have hosted.
      1. adduser myuser
        1. I gave them all the same passwords
        2. Then set sudo privileges
          1. visudo
            1. # User privilege specification
              root      ALL=(ALL) ALL
              users     ALL=(ALL) ALL

I then took a nap because I still had to rsync all the Data from my old/newly migrated server. Like I said I failed the first couple times, Nginx wouldn’t bind one time and PHP wouldn’t load another. The server has to be reset to default, that takes time. Then the OS takes time to reinstall. Factor in having to accomplish this after I got off work that evening, I was pretty exhausted. I also have to mention that it took almost all day for the new (VE) Server to be provisioned when support said it would only take 15 minutes. Please check in for Part 2.

Launch Day is here!

I launched my website today. Took a week to edit all the files, establish the portal structure, secure my server, and create a blog. I’m still missing my contact page and Gallery, but those pages can wait. I got the essentials. Plus I ran into an issue with the contact form script and I think I’m going to start over. The Gallery just needs pictures. So, at the moment I’m amassing as many web friendly photographs I can find, edit them, and FTP them to my server. Once done I can create the Gallery with SimpleViewer.

I’m using (mt) Media Temple (dv) Dedicated-Virtual Server to power both my site and Blog. My (dv) Dedicated-Virtual Servers is powered by a Hewlett-Packard Proliant DL-Series machines featuring multi-core Intel Xeon processors and high-performance SCSI/SAS disk drives in a RAID-5 configuration. Currently WordPress CMS software runs my Blog. If your interested in a website, hosting, a blog, drop me a line at jabo@jabokevin.net.

Making ground beef Burritos tonight for dinner. Yum! Seasoned with my special “taco” seasoning.

Please, take a look around. Leave a comment. “Kick the tires and Light the Fires” if you will.

jabo

Hello world!

Welcome to My Blog. This is my first post. I uploaded a bunch of Plugins to test the optimization of my Server. I work in the I.T. industry as a Customer Service Agent. I feel like I should tell you more about myself, but then you wouldn’t come back….

Stay tuned for Updates to myHome Page

Jabo

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