Saya memiliki instalasi baru centos 7 terbaru
[root@localhost ~]# cat /etc/centos-release
CentOS Linux release 7.4.1708 (Core)
[root@localhost ~]#
Saya ingin menginstal sesuatu dan wget tidak diinstal sehingga ketika saya mencoba menginstal wget saya melihat tha yum memberikan kesalahan.
Saya melihat mungkin semua topik tentang masalah ini di internet tetapi tidak beruntung saya tidak dapat menemukan solusi saya.
[root@localhost ~]# yum update
Loaded plugins: fastestmirror
Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=stock error was
14: curl#6 - "Could not resolve host: mirrorlist.centos.org; Unknown error"
http://mirror.centos.org/centos/7/os/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirror.centos.org; Unknown error"
Trying other mirror.
One of the configured repositories failed (CentOS-7 - Base),
and yum doesn't have enough cached data to continue. At this point the only
safe thing yum can do is fail. There are a few ways to work "fix" this:
1. Contact the upstream for the repository and get them to fix the problem.
2. Reconfigure the baseurl/etc. for the repository, to point to a working
upstream. This is most often useful if you are using a newer
distribution release than is supported by the repository (and the
packages for the previous distribution release still work).
3. Run the command with the repository temporarily disabled
yum --disablerepo=base ...
4. Disable the repository permanently, so yum won't use it by default. Yum
will then just ignore the repository until you permanently enable it
again or use --enablerepo for temporary usage:
yum-config-manager --disable base
or
subscription-manager repos --disable=base
5. Configure the failing repository to be skipped, if it is unavailable.
Note that yum will try to contact the repo. when it runs most commands,
so will have to try and fail each time (and thus. yum will be be much
slower). If it is a very temporary problem though, this is often a nice
compromise:
yum-config-manager --save --setopt=base.skip_if_unavailable=true
failure: repodata/repomd.xml from base: [Errno 256] No more mirrors to try.
http://mirror.centos.org/centos/7/os/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirror.centos.org; Unknown error"
[root@localhost ~]#
Jadi ketika saya daftar repo saya mendapatkan ini:
[root@localhost ~]# yum repolist all
Loaded plugins: fastestmirror
Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=stock error was
14: curl#6 - "Could not resolve host: mirrorlist.centos.org; Unknown error"
http://mirror.centos.org/centos/7/os/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirror.centos.org; Unknown error"
Trying other mirror.
http://mirror.centos.org/centos/7/os/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirror.centos.org; Unknown error"
Trying other mirror.
Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=centosplus&infra=stock error was
14: curl#6 - "Could not resolve host: mirrorlist.centos.org; Unknown error"
http://mirror.centos.org/centos/7/centosplus/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirror.centos.org; Unknown error"
Trying other mirror.
Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=extras&infra=stock error was
14: curl#6 - "Could not resolve host: mirrorlist.centos.org; Unknown error"
http://mirror.centos.org/centos/7/extras/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirror.centos.org; Unknown error"
Trying other mirror.
Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=updates&infra=stock error was
14: curl#6 - "Could not resolve host: mirrorlist.centos.org; Unknown error"
http://mirror.centos.org/centos/7/updates/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirror.centos.org; Unknown error"
Trying other mirror.
repo id repo name status
C7.0.1406-base/x86_64 CentOS-7.0.1406 - Base disabled
C7.0.1406-centosplus/x86_64 CentOS-7.0.1406 - CentOSPlus disabled
C7.0.1406-extras/x86_64 CentOS-7.0.1406 - Extras disabled
C7.0.1406-fasttrack/x86_64 CentOS-7.0.1406 - CentOSPlus disabled
C7.0.1406-updates/x86_64 CentOS-7.0.1406 - Updates disabled
C7.1.1503-base/x86_64 CentOS-7.1.1503 - Base disabled
C7.1.1503-centosplus/x86_64 CentOS-7.1.1503 - CentOSPlus disabled
C7.1.1503-extras/x86_64 CentOS-7.1.1503 - Extras disabled
C7.1.1503-fasttrack/x86_64 CentOS-7.1.1503 - CentOSPlus disabled
C7.1.1503-updates/x86_64 CentOS-7.1.1503 - Updates disabled
C7.2.1511-base/x86_64 CentOS-7.2.1511 - Base disabled
C7.2.1511-centosplus/x86_64 CentOS-7.2.1511 - CentOSPlus disabled
C7.2.1511-extras/x86_64 CentOS-7.2.1511 - Extras disabled
C7.2.1511-fasttrack/x86_64 CentOS-7.2.1511 - CentOSPlus disabled
C7.2.1511-updates/x86_64 CentOS-7.2.1511 - Updates disabled
C7.3.1611-base/x86_64 CentOS-7.3.1611 - Base disabled
C7.3.1611-centosplus/x86_64 CentOS-7.3.1611 - CentOSPlus disabled
C7.3.1611-extras/x86_64 CentOS-7.3.1611 - Extras disabled
C7.3.1611-fasttrack/x86_64 CentOS-7.3.1611 - CentOSPlus disabled
C7.3.1611-updates/x86_64 CentOS-7.3.1611 - Updates disabled
base/7/x86_64 CentOS-7 - Base enabled: 0
base-debuginfo/x86_64 CentOS-7 - Debuginfo disabled
base-source/7 CentOS-7 - Base Sources disabled
c7-media CentOS-7 - Media disabled
centosplus/7/x86_64 CentOS-7 - Plus enabled: 0
centosplus-source/7 CentOS-7 - Plus Sources disabled
cr/7/x86_64 CentOS-7 - cr disabled
extras/7/x86_64 CentOS-7 - Extras enabled: 0
extras-source/7 CentOS-7 - Extras Sources disabled
fasttrack/7/x86_64 CentOS-7 - fasttrack disabled
updates/7/x86_64 CentOS-7 - Updates enabled: 0
updates-source/7 CentOS-7 - Updates Sources disabled
repolist: 0
[root@localhost ~]#
Saya tidak yakin di mana masalahnya adalah instalasi baru di server khusus vmware / OVH saya.
Saya memiliki server lain yang diinstal dan berfungsi dengan baik tetapi kali ini saya mendapatkan masalah ini.
Adakah yang bisa membantu saya? Saya juga telah mencoba mengaktifkan semua jalur yang dinonaktifkan di etc / yum.repo.d
/etc/yum.repos.d/CentOS-Base.repo saya
# CentOS-Base.repo
#
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client. You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the
# remarked out baseurl= line instead.
#
#
[base]
name=CentOS-$releasever - Base
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os&infra=$infra
baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
#released updates
[updates]
name=CentOS-$releasever - Updates
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates&infra=$infra
baseurl=http://mirror.centos.org/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras&infra=$infra
baseurl=http://mirror.centos.org/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus&infra=$infra
baseurl=http://mirror.centos.org/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
Jawaban:
Ini menunjukkan bahwa Anda (a) tidak memiliki server DNS yang dikonfigurasi dengan benar atau (b) konfigurasi jaringan Anda tidak benar dan Anda tidak dapat terhubung ke server DNS untuk memeriksa nama host
mirrorlist.centos.org
.Coba gunakan
ping 8.8.8.8
. Jika ini gagal, cobaping <local-gateway-ip>
. Jika itu juga gagal, konfigurasi jaringan lokal Anda salah dan Anda harus memeriksa konfigurasi.Jika Anda dapat melakukan ping
8.8.8.8
, coba gunakanhost
,nslookup
ataudig
untuk memeriksa pengaturan DNS sepertihost google.com
ataudig google.com
. Jika gagal, Anda perlu memeriksa pengaturan DNS Anda. Periksa/etc/resolv.conf
untuk melihat apa yang dikonfigurasikan.MEMPERBARUI
Karena
/etc/resolv.conf
kosong, Anda perlu mengatur resolver DNS. Saya sarankan memasukkan yang berikut ke dalam file menggunakannano
atauvi
(atau apa pun yang Anda nyaman menggunakan):nameserver 9.9.9.9
Simpan file ini, lalu coba
yum update
lagi.Anda juga dapat mencoba host DNS lain jika menginginkannya, seperti
8.8.8.8
atau8.8.4.4
atau host OpenDNS mana pun.sumber
/etc/resolv.conf
dan masih tidak dapat melakukanhost google.com
maka Anda perlu memeriksa konfigurasi jaringan lokal Anda. Poskan output dariip addr
danip route
dan pastikan untuk memasukkan informasi mengenai jaringan lokal. Juga, Anda mungkin harus membawa NICip link set <eth adapter id> up
. Anda mungkin juga ingin memposting outputiptables -nL
untuk memastikan Anda tidak memiliki konfigurasi Firewall yang buruk memblokir koneksi Anda.host google.com 8.8.8.8
? Dan apa yang Anda lihat ketika Anda mencobaping 8.8.8.8
? Semuanya terlihat baik-baik saja, tetapi ada sesuatu yang tidak beres dan saya tidak yakin apa.Anda mungkin memiliki masalah konektivitas di suatu tempat, di sini proses kecil untuk memeriksa di mana Anda memiliki masalah.
Konektivitas Dasar
Periksa apakah server memiliki internet (alamat ip dan rute yang benar - jika tidak berfungsi, periksa
ip address
apakah Anda memiliki alamat IP).Penyelesai
Periksa apa resolver dan ping mereka
Anda harus memiliki garis
nameserver
dan alamat IP. Periksa apakah IP menjawab.Kemudian lakukan nslookup
Seharusnya mengembalikan daftar alamat IP. Jika tidak, server DNS Anda mungkin tidak berfungsi dengan benar, Anda dapat mencoba server lain dengan
Dan periksa kali ini berfungsi seperti yang diharapkan.
sumber
nameserver 8.8.8.8