I use ubuntu 14.04. apt-get worked fine until recently. apt-get will return failure message while using apt-get update:
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty/Release.gpg Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-updates/Release.gpg Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-backports/Release.gpg Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-security/Release.gpg Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty/main/source/Sources Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty/restricted/source/Sources Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty/universe/source/Sources Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty/multiverse/source/Sources Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty/main/binary-amd64/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty/restricted/binary-amd64/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty/universe/binary-amd64/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty/multiverse/binary-amd64/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty/main/binary-i386/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty/restricted/binary-i386/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty/universe/binary-i386/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty/multiverse/binary-i386/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty/main/i18n/Translation-en_US Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty/main/i18n/Translation-en Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty/multiverse/i18n/Translation-en_US Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty/multiverse/i18n/Translation-en Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty/restricted/i18n/Translation-en_US Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty/restricted/i18n/Translation-en Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty/universe/i18n/Translation-en_US Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty/universe/i18n/Translation-en Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-updates/main/source/Sources Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-updates/restricted/source/Sources Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-updates/universe/source/Sources Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-updates/multiverse/source/Sources Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-updates/main/binary-amd64/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-updates/restricted/binary-amd64/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-updates/universe/binary-amd64/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-updates/multiverse/binary-amd64/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-updates/main/binary-i386/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-updates/restricted/binary-i386/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-updates/universe/binary-i386/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-updates/multiverse/binary-i386/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-updates/main/i18n/Translation-en_US Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-updates/main/i18n/Translation-en Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-updates/multiverse/i18n/Translation-en_US Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-updates/multiverse/i18n/Translation-en Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-updates/restricted/i18n/Translation-en_US Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-updates/restricted/i18n/Translation-en Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-updates/universe/i18n/Translation-en_US Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-updates/universe/i18n/Translation-en Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-backports/main/source/Sources Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-backports/restricted/source/Sources Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-backports/universe/source/Sources Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-backports/multiverse/source/Sources Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-backports/main/binary-amd64/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-backports/restricted/binary-amd64/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-backports/universe/binary-amd64/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-backports/multiverse/binary-amd64/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-backports/main/binary-i386/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-backports/restricted/binary-i386/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-backports/universe/binary-i386/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-backports/multiverse/binary-i386/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-backports/main/i18n/Translation-en_US Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-backports/main/i18n/Translation-en Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-backports/multiverse/i18n/Translation-en_US Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-backports/multiverse/i18n/Translation-en Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-backports/restricted/i18n/Translation-en_US Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-backports/restricted/i18n/Translation-en Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-backports/universe/i18n/Translation-en_US Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-backports/universe/i18n/Translation-en Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-security/main/source/Sources Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-security/restricted/source/Sources Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-security/universe/source/Sources Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-security/multiverse/source/Sources Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-security/main/binary-amd64/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-security/restricted/binary-amd64/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-security/universe/binary-amd64/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-security/multiverse/binary-amd64/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-security/main/binary-i386/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-security/restricted/binary-i386/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-security/universe/binary-i386/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-security/multiverse/binary-i386/Packages Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-security/main/i18n/Translation-en_US Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-security/main/i18n/Translation-en Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-security/multiverse/i18n/Translation-en_US Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-security/multiverse/i18n/Translation-en Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-security/restricted/i18n/Translation-en_US Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-security/restricted/i18n/Translation-en Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-security/universe/i18n/Translation-en_US Connection failed [IP: 115.28.122.210 80]
Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-security/universe/i18n/Translation-en Connection failed [IP: 115.28.122.210 80]
Some index files failed to download. They have been ignored, or old ones used instead.
I tried to change source to mirrors.163.com or main server. It still failed. Ping those server shows the connection is OK:
$ ping mirrors.aliyun.com
PING mirrors.aliyun.com (112.124.140.210) 56(84) bytes of data.
64 bytes from 112.124.140.210: icmp_seq=1 ttl=54 time=12.5 ms
64 bytes from 112.124.140.210: icmp_seq=2 ttl=54 time=12.2 ms
64 bytes from 112.124.140.210: icmp_seq=3 ttl=54 time=13.5 ms
Does anyone know how to solve this? Thanks
