The use of authorized_keys2 for protocol 2 has been deprecated and is no longer supported by some distros

[rizumu]

Rackspace recently upgraded Arch Linux to a newer image which no longer supports the deprecated, since 2001, authorized_keys2. openstack.compute was uploading my public key to ~/.ssh/authorized_keys2 instead of ~/.ssh/authorized_keys. I discovered this because I began receiving a password prompt each and every login and took a look at Arch's default /etc/ssh/sshd_config.

See the discussion here:
http://serverfault.com/questions/116177/whats-the-difference-between-authorized-keys-and-authorized-keys2

[rizumu]

I just checked the current Rackspace images, 100-120 listed below, and built one of each with this change. SSH logins continue to work on all, including the RHEL's.

[localhost] local: openstack-compute image-list
+----------+------------------------------------------+--------+
| ID | Name | Status |
+----------+------------------------------------------+--------+
| 24 | Windows Server 2008 SP2 x64 | ACTIVE |
| 28 | Windows Server 2008 R2 x64 | ACTIVE |
| 31 | Windows Server 2008 SP2 x86 | ACTIVE |
| 56 | Windows Server 2008 SP2 x86 - MSSQL2K8R2 | ACTIVE |
| 57 | Windows Server 2008 SP2 x64 - MSSQL2K8R2 | ACTIVE |
| 58 | Windows Server 2008 R2 x64 - MSSQL2K8R2 | ACTIVE |
| 81 | Windows Server 2008 R2 x64 - SQL Web | ACTIVE |
| 100 | Arch 2011.10 | ACTIVE |
| 103 | Debian 5 (Lenny) | ACTIVE |
| 104 | Debian 6 (Squeeze) | ACTIVE |
| 106 | Fedora 14 | ACTIVE |
| 108 | Gentoo 11.0 | ACTIVE |
| 109 | openSUSE 12 | ACTIVE |
| 110 | Red Hat Enterprise Linux 5.5 | ACTIVE |
| 111 | Red Hat Enterprise Linux 6 | ACTIVE |
| 112 | Ubuntu 10.04 LTS | ACTIVE |
| 114 | CentOS 5.6 | ACTIVE |
| 115 | Ubuntu 11.04 | ACTIVE |
| 116 | Fedora 15 | ACTIVE |
| 118 | CentOS 6.0 | ACTIVE |
| 119 | Ubuntu 11.10 | ACTIVE |
| 120 | Fedora 16 | ACTIVE |
| 6504807 | daily | ACTIVE |
| 12868326 | daily | ACTIVE |
+----------+------------------------------------------+--------+

[rizumu]

Today I found the prettytable's printt() method wasn't working the 0.6 version. Simplest fix was to freeze at 0.5.
https://code.google.com/p/prettytable/source/browse/branches/0.6/README#90

[rizumu]

sorry for the extra comments, github went berzerk