Instalando Webmin en Debian 7

Editamos el source list para agregar un nuevo repositorio:

root@Server:~# vi /etc/apt/sources.list
deb http://download.webmin.com/download/repository sarge contrib
deb http://webmin.mirror.somersettechsolutions.co.uk/repository sarge contrib

Actualizamos para que tome el cambio el nuevo repositorio, pero nos indica que no está disponible la key pública:

root@Server:~# apt-get update
....
Reading package lists... Done
W: GPG error: http://webmin.mirror.somersettechsolutions.co.uk sarge Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY D97A3AE911F63C51
W: GPG error: http://download.webmin.com sarge Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY D97A3AE911F63C51
....

Vamos a la ruta donde queremos descargar la key:

root@Server:~# cd /root

root@Server:~# wget http://www.webmin.com/jcameron-key.asc
--2014-10-20 12:01:48--  http://www.webmin.com/jcameron-key.asc
Resolving www.webmin.com (www.webmin.com)... 216.34.181.97
Connecting to www.webmin.com (www.webmin.com)|216.34.181.97|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 1320 (1.3K) [text/plain]
Saving to: `jcameron-key.asc'
100%[=======================================================================================================================================>] 1,320       --.-K/s   in 0s
2014-10-20 12:01:48 (71.9 MB/s) - `jcameron-key.asc' saved [1320/1320]

Agregamos la key:

root@Server:~# apt-key add jcameron-key.asc
OK

Esta vez si nos dejará actualizar:

root@Server:~# apt-get update
Get:1 http://ftp.ccc.uba.ar wheezy Release.gpg [1,655 B]
Get:2 http://ftp.ccc.uba.ar wheezy-updates Release.gpg [836 B]
Get:3 http://ftp.ccc.uba.ar wheezy Release [168 kB]
Get:4 http://ftp.ccc.uba.ar wheezy-updates Release [124 kB]
Get:5 http://ftp.ccc.uba.ar wheezy/main Sources [5,955 kB]
Get:6 http://download.webmin.com sarge Release.gpg [189 B]
Hit http://security.debian.org wheezy/updates Release.gpg
Get:7 http://webmin.mirror.somersettechsolutions.co.uk sarge Release.gpg [189 B]
Hit http://security.debian.org wheezy/updates Release
Hit http://webmin.mirror.somersettechsolutions.co.uk sarge Release
Hit http://download.webmin.com sarge Release
Hit http://webmin.mirror.somersettechsolutions.co.uk sarge/contrib amd64 Packages
Hit http://download.webmin.com sarge/contrib amd64 Packages
Hit http://security.debian.org wheezy/updates/main Sources
Hit http://security.debian.org wheezy/updates/main amd64 Packages
Hit http://security.debian.org wheezy/updates/main Translation-en
Ign http://webmin.mirror.somersettechsolutions.co.uk sarge/contrib Translation-en_US
Ign http://webmin.mirror.somersettechsolutions.co.uk sarge/contrib Translation-en
Ign http://download.webmin.com sarge/contrib Translation-en_US
Ign http://download.webmin.com sarge/contrib Translation-en
Get:8 http://ftp.ccc.uba.ar wheezy/main amd64 Packages [5,841 kB]
Get:9 http://ftp.ccc.uba.ar wheezy/main Translation-en [3,846 kB]
Get:10 http://ftp.ccc.uba.ar wheezy-updates/main Sources [14 B]
Get:11 http://ftp.ccc.uba.ar wheezy-updates/main amd64 Packages/DiffIndex [1,609 B]
Get:12 http://ftp.ccc.uba.ar wheezy-updates/main Translation-en/DiffIndex [1,057 B]
Fetched 15.9 MB in 25s (620 kB/s)
Reading package lists... Done
root@Server:~#

Instalamos el webmin, le damos a 'Y' para confirmar:

root@Server:~# apt-get install webmin
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
  libdbi-perl libodbc1
Use 'apt-get autoremove' to remove them.
The following extra packages will be installed:
  apt-show-versions libapt-pkg-perl libauthen-pam-perl libio-pty-perl
The following NEW packages will be installed:
  apt-show-versions libapt-pkg-perl libauthen-pam-perl libio-pty-perl webmin
0 upgraded, 5 newly installed, 0 to remove and 22 not upgraded.
Need to get 22.1 MB of archives.
After this operation, 141 MB of additional disk space will be used.
Do you want to continue [Y/n]? Y

Get:1 http://ftp.ccc.uba.ar/pub/linux/debian/debian/ wheezy/main libauthen-pam-perl amd64 0.16-2+b2 [31.3 kB]
Get:2 http://ftp.ccc.uba.ar/pub/linux/debian/debian/ wheezy/main libio-pty-perl amd64 1:1.08-1+b2 [40.0 kB]
Get:3 http://ftp.ccc.uba.ar/pub/linux/debian/debian/ wheezy/main libapt-pkg-perl amd64 0.1.26+b1 [84.7 kB]
1% [Connecting to download.webmin.com]
Get:4 http://ftp.ccc.uba.ar/pub/linux/debian/debian/ wheezy/main apt-show-versions all 0.20 [34.9 kB]
Get:5 http://download.webmin.com/download/repository/ sarge/contrib webmin all 1.710 [21.9 MB]
Fetched 22.1 MB in 1min 16s (288 kB/s)
Selecting previously unselected package libauthen-pam-perl.
(Reading database ... 45191 files and directories currently installed.)
Unpacking libauthen-pam-perl (from .../libauthen-pam-perl_0.16-2+b2_amd64.deb) ...
Selecting previously unselected package libio-pty-perl.
Unpacking libio-pty-perl (from .../libio-pty-perl_1%3a1.08-1+b2_amd64.deb) ...
Selecting previously unselected package libapt-pkg-perl.
Unpacking libapt-pkg-perl (from .../libapt-pkg-perl_0.1.26+b1_amd64.deb) ...
Selecting previously unselected package apt-show-versions.
Unpacking apt-show-versions (from .../apt-show-versions_0.20_all.deb) ...
Selecting previously unselected package webmin.
Unpacking webmin (from .../archives/webmin_1.710_all.deb) ...
Processing triggers for man-db ...
Setting up libauthen-pam-perl (0.16-2+b2) ...
Setting up libio-pty-perl (1:1.08-1+b2) ...
Setting up libapt-pkg-perl (0.1.26+b1) ...
Setting up apt-show-versions (0.20) ...
** initializing cache. This may take a while **
Setting up webmin (1.710) ...
Webmin install complete. You can now login to https://Server:10000/
as root with your root password, or as any user who can use sudo
to run commands as root.