Ubuntu 16.04 Terminal/ Server problems and more

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I've been having this really frustrating problem with Ubuntu lately. I am not at all an experienced Linux user.



I've been trying to use Ubuntu Terminal to install some packages and applications but nothing has been working so far. Nothing at all and it's really frustrating!



I for example try to use "sudo apt-get update". It keeps getting stuck at 0%.
I try changing the server in Software and Updates but then it says "Querying software sources" and after that a window appears saying "Failed to download repository information", "Check your Internet connection".
When I click on the "details" tab on that last window, I get this long message that I do not understand:



W:The repository 'cdrom://Ubuntu 16.04.3 LTS _Xenial Xerus_ - Release amd64 (20170801) xenial Release' does not have a Release file.,
Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
W:See apt-secure(8) manpage for repository creation and user configuration details.
W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial/InRelease Could not connect to 47.88.32.46:3128 (47.88.32.46), connection timed out
W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial-updates/InRelease Unable to connect to 47.88.32.46:3128:
W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial-backports/InRelease Unable to connect to 47.88.32.46:3128:
W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial-security/InRelease Unable to connect to 47.88.32.46:3128:
W:Failed to fetch https://dl.winehq.org/wine-builds/ubuntu/dists/xenial/InRelease Connection timed out after 120001 milliseconds
W:Failed to fetch http://ppa.launchpad.net/webupd8team/java/ubuntu/dists/xenial/InRelease Could not connect to 47.88.32.46:3128 (47.88.32.46), connection timed out
E:Failed to fetch cdrom://Ubuntu 16.04.3 LTS _Xenial Xerus_ - Release amd64 (20170801)/dists/xenial/main/binary-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,

W:Some index files failed to download. They have been ignored, or old ones used instead."


Every time I try to install a package it fails because it is unable to locate it. It's like my whole Ubuntu system can't connect to any server at all and can't exchange any data with it.



Please help me!
Thank you.







share|improve this question





















  • 47.88.32.46 is a server in the alibaba.com domain. Moreover, apt isn't supposed to retrieve packages by IP address, only by the fully qualified URL. Your /etc/hosts file may be compromised. What is the output of ping archive.ubuntu.com?
    – Jos
    2 days ago
















up vote
0
down vote

favorite












I've been having this really frustrating problem with Ubuntu lately. I am not at all an experienced Linux user.



I've been trying to use Ubuntu Terminal to install some packages and applications but nothing has been working so far. Nothing at all and it's really frustrating!



I for example try to use "sudo apt-get update". It keeps getting stuck at 0%.
I try changing the server in Software and Updates but then it says "Querying software sources" and after that a window appears saying "Failed to download repository information", "Check your Internet connection".
When I click on the "details" tab on that last window, I get this long message that I do not understand:



W:The repository 'cdrom://Ubuntu 16.04.3 LTS _Xenial Xerus_ - Release amd64 (20170801) xenial Release' does not have a Release file.,
Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
W:See apt-secure(8) manpage for repository creation and user configuration details.
W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial/InRelease Could not connect to 47.88.32.46:3128 (47.88.32.46), connection timed out
W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial-updates/InRelease Unable to connect to 47.88.32.46:3128:
W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial-backports/InRelease Unable to connect to 47.88.32.46:3128:
W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial-security/InRelease Unable to connect to 47.88.32.46:3128:
W:Failed to fetch https://dl.winehq.org/wine-builds/ubuntu/dists/xenial/InRelease Connection timed out after 120001 milliseconds
W:Failed to fetch http://ppa.launchpad.net/webupd8team/java/ubuntu/dists/xenial/InRelease Could not connect to 47.88.32.46:3128 (47.88.32.46), connection timed out
E:Failed to fetch cdrom://Ubuntu 16.04.3 LTS _Xenial Xerus_ - Release amd64 (20170801)/dists/xenial/main/binary-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,

W:Some index files failed to download. They have been ignored, or old ones used instead."


Every time I try to install a package it fails because it is unable to locate it. It's like my whole Ubuntu system can't connect to any server at all and can't exchange any data with it.



Please help me!
Thank you.







share|improve this question





















  • 47.88.32.46 is a server in the alibaba.com domain. Moreover, apt isn't supposed to retrieve packages by IP address, only by the fully qualified URL. Your /etc/hosts file may be compromised. What is the output of ping archive.ubuntu.com?
    – Jos
    2 days ago












up vote
0
down vote

favorite









up vote
0
down vote

favorite











I've been having this really frustrating problem with Ubuntu lately. I am not at all an experienced Linux user.



I've been trying to use Ubuntu Terminal to install some packages and applications but nothing has been working so far. Nothing at all and it's really frustrating!



I for example try to use "sudo apt-get update". It keeps getting stuck at 0%.
I try changing the server in Software and Updates but then it says "Querying software sources" and after that a window appears saying "Failed to download repository information", "Check your Internet connection".
When I click on the "details" tab on that last window, I get this long message that I do not understand:



W:The repository 'cdrom://Ubuntu 16.04.3 LTS _Xenial Xerus_ - Release amd64 (20170801) xenial Release' does not have a Release file.,
Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
W:See apt-secure(8) manpage for repository creation and user configuration details.
W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial/InRelease Could not connect to 47.88.32.46:3128 (47.88.32.46), connection timed out
W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial-updates/InRelease Unable to connect to 47.88.32.46:3128:
W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial-backports/InRelease Unable to connect to 47.88.32.46:3128:
W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial-security/InRelease Unable to connect to 47.88.32.46:3128:
W:Failed to fetch https://dl.winehq.org/wine-builds/ubuntu/dists/xenial/InRelease Connection timed out after 120001 milliseconds
W:Failed to fetch http://ppa.launchpad.net/webupd8team/java/ubuntu/dists/xenial/InRelease Could not connect to 47.88.32.46:3128 (47.88.32.46), connection timed out
E:Failed to fetch cdrom://Ubuntu 16.04.3 LTS _Xenial Xerus_ - Release amd64 (20170801)/dists/xenial/main/binary-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,

W:Some index files failed to download. They have been ignored, or old ones used instead."


Every time I try to install a package it fails because it is unable to locate it. It's like my whole Ubuntu system can't connect to any server at all and can't exchange any data with it.



Please help me!
Thank you.







share|improve this question













I've been having this really frustrating problem with Ubuntu lately. I am not at all an experienced Linux user.



I've been trying to use Ubuntu Terminal to install some packages and applications but nothing has been working so far. Nothing at all and it's really frustrating!



I for example try to use "sudo apt-get update". It keeps getting stuck at 0%.
I try changing the server in Software and Updates but then it says "Querying software sources" and after that a window appears saying "Failed to download repository information", "Check your Internet connection".
When I click on the "details" tab on that last window, I get this long message that I do not understand:



W:The repository 'cdrom://Ubuntu 16.04.3 LTS _Xenial Xerus_ - Release amd64 (20170801) xenial Release' does not have a Release file.,
Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
W:See apt-secure(8) manpage for repository creation and user configuration details.
W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial/InRelease Could not connect to 47.88.32.46:3128 (47.88.32.46), connection timed out
W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial-updates/InRelease Unable to connect to 47.88.32.46:3128:
W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial-backports/InRelease Unable to connect to 47.88.32.46:3128:
W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial-security/InRelease Unable to connect to 47.88.32.46:3128:
W:Failed to fetch https://dl.winehq.org/wine-builds/ubuntu/dists/xenial/InRelease Connection timed out after 120001 milliseconds
W:Failed to fetch http://ppa.launchpad.net/webupd8team/java/ubuntu/dists/xenial/InRelease Could not connect to 47.88.32.46:3128 (47.88.32.46), connection timed out
E:Failed to fetch cdrom://Ubuntu 16.04.3 LTS _Xenial Xerus_ - Release amd64 (20170801)/dists/xenial/main/binary-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,

W:Some index files failed to download. They have been ignored, or old ones used instead."


Every time I try to install a package it fails because it is unable to locate it. It's like my whole Ubuntu system can't connect to any server at all and can't exchange any data with it.



Please help me!
Thank you.









share|improve this question












share|improve this question




share|improve this question








edited 2 days ago









Jos

13.3k53647




13.3k53647









asked 2 days ago









Robert Nantchouang N

1




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  • 47.88.32.46 is a server in the alibaba.com domain. Moreover, apt isn't supposed to retrieve packages by IP address, only by the fully qualified URL. Your /etc/hosts file may be compromised. What is the output of ping archive.ubuntu.com?
    – Jos
    2 days ago
















  • 47.88.32.46 is a server in the alibaba.com domain. Moreover, apt isn't supposed to retrieve packages by IP address, only by the fully qualified URL. Your /etc/hosts file may be compromised. What is the output of ping archive.ubuntu.com?
    – Jos
    2 days ago















47.88.32.46 is a server in the alibaba.com domain. Moreover, apt isn't supposed to retrieve packages by IP address, only by the fully qualified URL. Your /etc/hosts file may be compromised. What is the output of ping archive.ubuntu.com?
– Jos
2 days ago




47.88.32.46 is a server in the alibaba.com domain. Moreover, apt isn't supposed to retrieve packages by IP address, only by the fully qualified URL. Your /etc/hosts file may be compromised. What is the output of ping archive.ubuntu.com?
– Jos
2 days ago















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