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Archive for June 3rd, 2007

Simple things to improve mail delivery

Sunday, June 3rd, 2007

To avoid getting flagged as spam:

  • Avoid all X-Priority headers
  • Avoid all X-Mailer headers
  • Use an SPF record like youdomain.com. 3600 IN TXT “v=spf1 ip4:123.123.123.123 -all”
  • Use DKIM signing
  • Ensure mail server’s DNS resolved to the same name for both forward / reverse
  • Ensure MX record matches mail server’s resolved DNS name
  • Apply for AOL whitelist status http://postmaster.aol.com/
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MogileFS HOWTO

Sunday, June 3rd, 2007

Check out the latest copy of the MogileFS source code (recommended)

svn checkout http://code.sixapart.com/svn/mogilefs

Install common prereqs

[download:prereqs.sh]

perl -MCPAN -e ‘install Danga::Socket’ perl -MCPAN -e ‘install Gearman::Client’ perl -MCPAN -e ‘install Gearman::Server’ perl -MCPAN -e ‘install Gearman::Client::Async’ perl -MCPAN -e ‘install Net::Netmask’ perl -MCPAN -e ‘install IO::WrapTie’ perl -MCPAN -e ‘install IO::AIO’ perl -MCPAN -e ‘install List::MoreUtils’ perl -MCPAN -e ‘install Path::Class’ perl -MCPAN -e ‘install Perlbal’

[/download]

Go ahead and install the servers

cd mogilefs/trunk/server perl Makefile.PL chmod 755 /usr/bin/mogilefsd adduser mogile mkdir /home/mogilefs

Install the client module

cd api/perl/MogileFS-Client perl Makefile.PL make install

Install the admin utility scripts

cd utils perl Makefile.PL make install

Create the MySQL database

mysqladmin create mogilefs

Setup the SQL Permissions

grant all on mogilefs.* TO ‘mogile’@'%’ identified by ’some-password’; flush privileges;

Load the schema

./mogdbsetup --dbhost=localhost --dbname=mogilefs --dbuser=mogile --dbpass=some-password

Create configurations

mkdir /etc/mogilefs

Add the following to /etc/mogilefs/mogilefsd.conf

db_dsn DBI:mysql:mogilefs:tracker.yourdomain.com db_user mogile db_pass some-password conf_port 7001 listener_jobs 5 old_repl_compat 0 lib /usr/lib/perl5/site_perl/5.8.8/

* you may need to change the lib path relative to your system

Create the storage server config in /etc/mogilefs/mogstored.conf

httplisten=0.0.0.0:7500 mgmtlisten=0.0.0.0:7501 docroot=/home/mogilefs/

Start the tracker

su mogile -c “mogilefsd -c /etc/mogilefs/mogilefsd.conf --daemon”

Start the storage server on all the servers that will be providing the role

su mogile -c “mogstored --daemon”

Configure your domains and replication patterns

mogadm domain add [domain] mogadm class add [domain] [className]

Tell the tracker about all the hosts and devices acting as a storage server (mogstored)

mogadm host add [hostname] mogadm device add [hostname] [devX]

Make the device directory (device names need to be GLOBALLY unique; thus dev1 can never exist anywhere else on any other mogstored server. The prefix must be dev, followed by an integer greater than 0)

mkdir /home/mogilefs/dev1

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