mostafa@mostafa-CX600:~$ sudo apt-get update
[sudo] password for mostafa:
Ign cdrom://Ubuntu 14.10 _Utopic Unicorn_ - Release amd64 (20141022.1) utopic InRelease
Ign cdrom://Ubuntu 14.10 _Utopic Unicorn_ - Release amd64 (20141022.1) utopic Release.gpg
Ign cdrom://Ubuntu 14.10 _Utopic Unicorn_ - Release amd64 (20141022.1) utopic Release
Err cdrom://Ubuntu 14.10 _Utopic Unicorn_ - Release amd64 (20141022.1) utopic/main amd64 Packages
Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs
Err cdrom://Ubuntu 14.10 _Utopic Unicorn_ - Release amd64 (20141022.1) utopic/restricted amd64 Packages
Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs
Err cdrom://Ubuntu 14.10 _Utopic Unicorn_ - Release amd64 (20141022.1) utopic/main i386 Packages
Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs
Err cdrom://Ubuntu 14.10 _Utopic Unicorn_ - Release amd64 (20141022.1) utopic/restricted i386 Packages
Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs
Ign cdrom://Ubuntu 14.10 _Utopic Unicorn_ - Release amd64 (20141022.1) utopic/main Translation-en_US
Ign cdrom://Ubuntu 14.10 _Utopic Unicorn_ - Release amd64 (20141022.1) utopic/main Translation-en
Ign cdrom://Ubuntu 14.10 _Utopic Unicorn_ - Release amd64 (20141022.1) utopic/restricted Translation-en_US
Ign cdrom://Ubuntu 14.10 _Utopic Unicorn_ - Release amd64 (20141022.1) utopic/restricted Translation-en
Ign http://extras.ubuntu.com utopic InRelease
Get:1 http://extras.ubuntu.com utopic Release.gpg [72 B]
Hit http://extras.ubuntu.com utopic Release
Ign http://mirror.iranserver.com utopic InRelease
Ign http://mirror.iranserver.com utopic-updates InRelease
Ign http://extras.ubuntu.com utopic Release
Ign http://mirror.iranserver.com utopic-backports InRelease
Get:2 http://dl.google.com stable InRelease [1,540 B]
99% [2 InRelease gpgv 1,540 B] [Waiting for headers] [Waiting for headers]Splitting up /var/lib/apt/lists/partial/dl.google.com_linux_chrome_deb_dists_stable_InIgn http://dl.google.com stable InRelease
W: GPG error: http://extras.ubuntu.com utopic Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 16126D3A3E5C1192
E: GPG error: http://dl.google.com stable InRelease: Clearsigned file isn't valid, got 'NODATA' (does the network require authentication?)
mostafa@mostafa-CX600:~$
================================
mostafa@mostafa-CX600:~$ ping www.google.com -c7
PING www.google.com (74.125.195.105) 56(84) bytes of data.
64 bytes from wj-in-f105.1e100.net (74.125.195.105): icmp_seq=1 ttl=46 time=237 ms
64 bytes from wj-in-f105.1e100.net (74.125.195.105): icmp_seq=2 ttl=46 time=238 ms
64 bytes from wj-in-f105.1e100.net (74.125.195.105): icmp_seq=3 ttl=46 time=245 ms
64 bytes from wj-in-f105.1e100.net (74.125.195.105): icmp_seq=4 ttl=46 time=239 ms
64 bytes from wj-in-f105.1e100.net (74.125.195.105): icmp_seq=5 ttl=46 time=239 ms
64 bytes from wj-in-f105.1e100.net (74.125.195.105): icmp_seq=6 ttl=46 time=246 ms
64 bytes from wj-in-f105.1e100.net (74.125.195.105): icmp_seq=7 ttl=46 time=239 ms
--- www.google.com ping statistics ---
7 packets transmitted, 7 received, 0% packet loss, time 9412ms
rtt min/avg/max/mdev = 237.711/241.020/246.219/3.157 ms
======================================================================================
mostafa@mostafa-CX600:~$ cat /etc/apt/sources.list
deb cdrom:[Ubuntu 14.10 _Utopic Unicorn_ - Release amd64 (20141022.1)]/ utopic main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://mirror.iranserver.com/ubuntu/ utopic main restricted
deb-src http://mirror.iranserver.com/ubuntu/ utopic universe multiverse main restricted #Added by software-properties
## Major bug fix updates produced after the final release of the
## distribution.
deb http://mirror.iranserver.com/ubuntu/ utopic-updates main restricted
deb-src http://mirror.iranserver.com/ubuntu/ utopic-updates universe multiverse main restricted #Added by software-properties
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://mirror.iranserver.com/ubuntu/ utopic universe
deb http://mirror.iranserver.com/ubuntu/ utopic-updates universe
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://mirror.iranserver.com/ubuntu/ utopic multiverse
deb http://mirror.iranserver.com/ubuntu/ utopic-updates multiverse
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://mirror.iranserver.com/ubuntu/ utopic-backports main restricted universe multiverse
deb-src http://mirror.iranserver.com/ubuntu/ utopic-backports main restricted universe multiverse #Added by software-properties
deb http://mirror.iranserver.com/ubuntu/ utopic-security main restricted
deb-src http://mirror.iranserver.com/ubuntu/ utopic-security universe multiverse main restricted #Added by software-properties
deb http://mirror.iranserver.com/ubuntu/ utopic-security universe
deb http://mirror.iranserver.com/ubuntu/ utopic-security multiverse
## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
# deb http://archive.canonical.com/ubuntu utopic partner
# deb-src http://archive.canonical.com/ubuntu utopic partner
## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.
deb http://extras.ubuntu.com/ubuntu utopic main
deb-src http://extras.ubuntu.com/ubuntu utopic main