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John Whitlock's questions

Martin Hope
John Whitlock
Asked: 2011-07-30 11:24:29 +0800 CST
  • 19

On Ubuntu 10.04.3 LTS, after installing Tomcat 6, the way to add a manager / admin account is to add a record like this to /etc/tomcat6/tomcat-users.xml:

<role rolename="manager"/>
<role rolename="admin"/>
<user username="user" password="password" roles="manager,admin"/>

That password is in plaintext, and I'm not comfortable with that. Is there a way to use something like a hash instead? If you have a non-Ubuntu solution, I can probably translate it.

tomcat tomcat6
Martin Hope
John Whitlock
Asked: 2010-07-29 06:25:26 +0800 CST
  • 3

I'm starting to configure systems using Puppet, and I'm having trouble with setting up my user account.

On our CentOS 5.3 server, the sudoers group is 'wheel', gid 10. On our Ubuntu 9.10 server, the group is 'sudo', gid 27. How do I setup the group account so that both boxes get the right group and my user is added to the right group?

I've tried splitting this config into os_vars.pp, virt_groups.pp, and virt_users.pp.

os_vars.pp:

class os_vars {
  case $operatingsystem {
    centos: {
      $os_admin_group = "wheel"
      $os_admin_group_gid = "10"
    }
    ubuntu: {
      $os_admin_group = "sudo"
      $os_admin_group_gid = "27"
    }
  }
  notice("in os_vars, admin group is: ${os_admin_group}, ${os_admin_group_gid}")
}

virt_groups.pp:

class virt_groups {
  include os_vars
  notice("in virt_groups, admin group is: ${os_admin_group}, ${os_admin_group_gid}")
  @group { $os_admin_group:
    gid => $os_admin_group_gid,
    ensure => present,
  }
}

virt_users.pp:

class virt_users {
  include os_vars
  notice("in virt_users, admin group is: ${os_admin_group}, ${os_admin_group_gid}")
  @user { 'my_user':
    home => '/home/my_user',
    uid => '500',
    groups => [$os_admin_group],
    password => $1BigLongEncrypedStuff
    gid => '500',
    ensure => 'present',
    shell => '/bin/bash'
  }
}

In os_vars.pp, the variables are set correctly, but they are empty in virt_users.pp and virt_groups.pp.

puppet
Martin Hope
John Whitlock
Asked: 2010-06-04 09:10:29 +0800 CST
  • 57

I'm trying to get email reports from our AWS EC2 instances. We're using Exchange Online (part of Microsoft Online Services). I've setup a user account specifically for SMTP relaying, and I've setup Postfix to meet all the requirements to relay messages through this server. However, Exchange Online's SMTP server will reject messages unless the From address exactly matches the authentication address (the error message is 550 5.7.1 Client does not have permissions to send as this sender).

With careful configuration, I can setup my services to send as this user. But I'm not a huge fan of being careful - I'd rather have postfix force the issue. Is there a way to do this?

postfix hosted-exchange
Martin Hope
John Whitlock
Asked: 2009-12-03 15:38:21 +0800 CST
  • 1

We have some servers (Centos 5.3) that are behind a firewall without access to the Internet. We'd like all the logs to be synchronized, but NTP appears to want the authoritative server to be synchronized to a public NTP server. We've tried the -g option for ntpd, but this returns an error like "no appropriate server found". Does anyone have a working configuration?

centos