出现以下错误
root@ubuntu:~# apt-get update
Err:1 http://mirrors.aliyun.com/ubuntu bionic InRelease
Could not connect to mirrors.aliyun.com:80 (115.238.192.244), connection timed out Could not connect to mirrors.aliyun.com:80 (115.238.192.243), connection timed out Could not connect to mirrors.aliyun.com:80 (115.238.192.242), connection timed out Could not connect to mirrors.aliyun.com:80 (115.238.192.248), connection timed out Could not connect to mirrors.aliyun.com:80 (115.238.192.238), connection timed out Could not connect to mirrors.aliyun.com:80 (115.238.192.239), connection timed out Could not connect to mirrors.aliyun.com:80 (122.228.1.211), connection timed out Could not connect to mirrors.aliyun.com:80 (122.228.1.206), connection timed out Could not connect to mirrors.aliyun.com:80 (122.228.1.212), connection timed out Could not connect to mirrors.aliyun.com:80 (122.228.1.208), connection timed out Could not connect to mirrors.aliyun.com:80 (115.238.192.241), connection timed out Could not connect to mirrors.aliyun.com:80 (115.231.152.241), connection timed out Could not connect to mirrors.aliyun.com:80 (115.231.152.240), connection timed out Could not connect to mirrors.aliyun.com:80 (115.231.152.244), connection timed out Could not connect to mirrors.aliyun.com:80 (115.231.152.248), connection timed out Could not connect to mirrors.aliyun.com:80 (115.238.192.240), connection timed out
Err:2 http://mirrors.aliyun.com/ubuntu bionic-updates InRelease
Unable to connect to mirrors.aliyun.com:http:
Err:3 http://mirrors.aliyun.com/ubuntu bionic-backports InRelease
Unable to connect to mirrors.aliyun.com:http:
Err:4 http://mirrors.aliyun.com/ubuntu bionic-security InRelease
Unable to connect to mirrors.aliyun.com:http:
Reading package lists... Done
W: Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/bionic/InRelease Could not connect to mirrors.aliyun.com:80 (115.238.192.244), connection timed out Could not connect to mirrors.aliyun.com:80 (115.238.192.243), connection timed out Could not connect to mirrors.aliyun.com:80 (115.238.192.242), connection timed out Could not connect to mirrors.aliyun.com:80 (115.238.192.248), connection timed out Could not connect to mirrors.aliyun.com:80 (115.238.192.238), connection timed out Could not connect to mirrors.aliyun.com:80 (115.238.192.239), connection timed out Could not connect to mirrors.aliyun.com:80 (122.228.1.211), connection timed out Could not connect to mirrors.aliyun.com:80 (122.228.1.206), connection timed out Could not connect to mirrors.aliyun.com:80 (122.228.1.212), connection timed out Could not connect to mirrors.aliyun.com:80 (122.228.1.208), connection timed out Could not connect to mirrors.aliyun.com:80 (115.238.192.241), connection timed out Could not connect to mirrors.aliyun.com:80 (115.231.152.241), connection timed out Could not connect to mirrors.aliyun.com:80 (115.231.152.240), connection timed out Could not connect to mirrors.aliyun.com:80 (115.231.152.244), connection timed out Could not connect to mirrors.aliyun.com:80 (115.231.152.248), connection timed out Could not connect to mirrors.aliyun.com:80 (115.238.192.240), connection timed out
W: Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/bionic-updates/InRelease Unable to connect to mirrors.aliyun.com:http:
W: Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/bionic-backports/InRelease Unable to connect to mirrors.aliyun.com:http:
W: Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/bionic-security/InRelease Unable to connect to mirrors.aliyun.com:http:
W: Some index files failed to download. They have been ignored, or old ones used instead.
昨天在安装数据库的时候更新源还是正常的 今天就变这种问题了 找了各种问题也没有用 求大佬解惑！！
ps.目前在xshell7上操作
还是网络的问题 重新安装后 自动获取ip地址 不设定固定ip
这是sources.list的配置
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://mirrors.aliyun.com/ubuntu bionic main restricted
# deb-src http://mirrors.aliyun.com/ubuntu bionic main restricted
## Major bug fix updates produced after the final release of the
## distribution.
deb http://mirrors.aliyun.com/ubuntu bionic-updates main restricted
# deb-src http://mirrors.aliyun.com/ubuntu bionic-updates main restricted
## 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://mirrors.aliyun.com/ubuntu bionic universe
# deb-src http://mirrors.aliyun.com/ubuntu bionic universe
deb http://mirrors.aliyun.com/ubuntu bionic-updates universe
# deb-src http://mirrors.aliyun.com/ubuntu bionic-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://mirrors.aliyun.com/ubuntu bionic multiverse
# deb-src http://mirrors.aliyun.com/ubuntu bionic multiverse
deb http://mirrors.aliyun.com/ubuntu bionic-updates multiverse
# deb-src http://mirrors.aliyun.com/ubuntu bionic-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://mirrors.aliyun.com/ubuntu bionic-backports main restricted universe multiverse
# deb-src http://mirrors.aliyun.com/ubuntu bionic-backports main restricted universe multiverse