Asa 5520 Configuration

Hello experts,
I am new to Firewall configuration and I am having some issue trying to configure my 5520.
Basically it says that the outside interface is down and I don't understand why.
I run the no shutdown command on both internal and external interfaces but no changes.
The router ip address is 10.0.0.254 and it is a dsl broadband with static public ip

Here is my configuration

Result of the command: "show running-conf"

: Saved
: 
: Serial Number: JMX1339L0WQ
: Hardware:   ASA5520, 3072 MB RAM, CPU Pentium 4 Celeron 2000 MHz
:
ASA Version 9.1(7)4 
!
hostname FIREWALL-01
domain-name exceteragroup.com
enable password n9CBFepzIuUJLxm4 encrypted
names
!
interface GigabitEthernet0/0
 nameif Outside
 security-level 0
 ip address 10.0.0.1 255.255.255.0 
!
interface GigabitEthernet0/1
 nameif Inside
 security-level 100
 ip address 192.168.1.254 255.255.255.0 
!
interface GigabitEthernet0/2
 shutdown
 no nameif
 no security-level
 no ip address
!
interface GigabitEthernet0/3
 shutdown
 no nameif
 no security-level
 no ip address
!
interface Management0/0
 management-only
 nameif management
 security-level 100
 ip address 192.168.8.1 255.255.255.0 
!
ftp mode passive
dns domain-lookup Outside
dns server-group DefaultDNS
 name-server 213.120.234.22
 name-server 213.120.234.34
 domain-name exceteragroup.com
same-security-traffic permit inter-interface
same-security-traffic permit intra-interface
object network internal-lan
 subnet 192.168.1.0 255.255.255.0
access-list global_access extended permit ip 192.168.1.0 255.255.255.0 10.0.0.0 255.255.255.0 
pager lines 24
logging asdm informational
mtu management 1500
mtu Inside 1500
mtu Outside 1500
no failover
icmp unreachable rate-limit 1 burst-size 1
no asdm history enable
arp timeout 14400
no arp permit-nonconnected
!
object network internal-lan
 nat (any,Outside) dynamic interface
access-group global_access global
route Outside 0.0.0.0 0.0.0.0 10.0.0.254 1 
timeout xlate 3:00:00
timeout pat-xlate 0:00:30
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat 0:05:00
timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00
timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute
timeout tcp-proxy-reassembly 0:01:00
timeout floating-conn 0:00:00
dynamic-access-policy-record DfltAccessPolicy
user-identity default-domain LOCAL
http server enable
http 192.168.8.0 255.255.255.0 management
no snmp-server location
no snmp-server contact
crypto ipsec security-association pmtu-aging infinite
crypto ca trustpool policy
telnet timeout 5
ssh stricthostkeycheck
ssh timeout 5
ssh key-exchange group dh-group1-sha1
console timeout 0
management-access management
threat-detection basic-threat
threat-detection statistics port
threat-detection statistics protocol
threat-detection statistics access-list
threat-detection statistics tcp-intercept rate-interval 30 burst-rate 400 average-rate 200
webvpn
 anyconnect-essentials
 cache
  disable
!
class-map inspection_default
 match default-inspection-traffic
!
!
policy-map type inspect dns preset_dns_map
 parameters
  message-length maximum client auto
  message-length maximum 512
policy-map global_policy
 class inspection_default
  inspect dns preset_dns_map 
  inspect ftp 
  inspect h323 h225 
  inspect h323 ras 
  inspect rsh 
  inspect rtsp 
  inspect esmtp 
  inspect sqlnet 
  inspect skinny  
  inspect sunrpc 
  inspect xdmcp 
  inspect sip  
  inspect netbios 
  inspect tftp 
  inspect ip-options 
!
service-policy global_policy global
prompt hostname context 
no call-home reporting anonymous
hpm topN enable
Cryptochecksum:927c1847dcaf79925c0d5d198104aec5
: end

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Can anyone understand where is the problem?

Thanks in advance