我一直在尝试在 Kali Linux 上安装 OpenVas
我沒有幸運。
我尝试用谷歌搜索，找到了这个链接
https://iamjagjeetubhi.wordpress.com/2017/04/10/fix-unable-to-locate-package-error-in-kali-linux/
我打开它sources.list，并按照建议添加这些。
deb http://http.kali.org/kali kali-rolling main contrib non-free
# For source package access, uncomment the following line
# deb-src http://http.kali.org/kali kali-rolling main contrib non-free
deb http://http.kali.org/kali sana main non-free contrib
deb http://security.kali.org/kali-security sana/updates main contrib non-free
# For source package access, uncomment the following line
# deb-src http://http.kali.org/kali sana main non-free contrib
# deb-src http://security.kali.org/kali-security sana/updates main contrib non-free
deb http://old.kali.org/kali moto main non-free contrib
# For source package access, uncomment the following line
# deb-src http://old.kali.org/kali moto main non-free contrib
我运行了更新，发现有很多错误
root@kali:/etc/apt# apt-get update
Err:1 http://old.kali.org/kali moto InRelease
503 Service Unavailable [IP: 54.39.49.227 80]
Err:2 http://security.kali.org/kali-security sana/updates InRelease
503 Service Unavailable [IP: 192.99.200.113 80]
Err:3 http://http.kali.org/kali kali-rolling InRelease
503 Service Unavailable [IP: 192.99.200.113 80]
Err:4 http://http.kali.org/kali sana InRelease
503 Service Unavailable [IP: 192.99.200.113 80]
Reading package lists... Done
W: Failed to fetch http://http.kali.org/kali/dists/kali-rolling/InRelease 503 Service Unavailable [IP: 192.99.200.113 80]
W: Failed to fetch http://http.kali.org/kali/dists/sana/InRelease 503 Service Unavailable [IP: 192.99.200.113 80]
W: Failed to fetch http://security.kali.org/kali-security/dists/sana/updates/InRelease 503 Service Unavailable [IP: 192.99.200.113 80]
W: Failed to fetch http://old.kali.org/kali/dists/moto/InRelease 503 Service Unavailable [IP: 54.39.49.227 80]
W: Some index files failed to download. They have been ignored, or old ones used instead.
W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:7 and /etc/apt/sources.list:17
W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:7 and /etc/apt/sources.list:17
W: Target Translations (main/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:7 and /etc/apt/sources.list:17
W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:7 and /etc/apt/sources.list:17
W: Target Packages (contrib/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:7 and /etc/apt/sources.list:17
W: Target Packages (contrib/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:7 and /etc/apt/sources.list:17
W: Target Translations (contrib/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:7 and /etc/apt/sources.list:17
W: Target Translations (contrib/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:7 and /etc/apt/sources.list:17
W: Target Packages (non-free/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:7 and /etc/apt/sources.list:17
W: Target Packages (non-free/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:7 and /etc/apt/sources.list:17
W: Target Translations (non-free/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:7 and /etc/apt/sources.list:17
W: Target Translations (non-free/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:7 and /etc/apt/sources.list:17
有人可以帮忙吗？
答案1
您收到几条警告消息，指出软件包在/etc/apt/sources.list
sudoedit在 Kali Linux 中默认在终端中打开 nano 编辑器。/etc/apt/sources.list在 nano 编辑器中打开进行编辑：sudoedit /etc/apt/sources.list通过在每 4 条新行前面添加一个字符来注释掉您添加到 sources.list 中的 4 条新行
#。deb http://http.kali.org/kali kali-rolling main contrib non-free deb http://http.kali.org/kali sana main non-free contrib deb http://security.kali.org/kali-security sana/updates main contrib non-free deb http://old.kali.org/kali moto main non-free contrib找到所有剩余的重复行，并通过在每个重复行前面添加一个字符来注释掉它们
#。不要注释掉两个重复行，只需注释掉两个重复行中的一行即可删除警告消息。使用键盘组合键Ctrl+ O，然后按下Enter将 sources.list 文件保存到当前位置。使用键盘组合键Ctrl+X退出 nano。
通过更新可用软件列表来启用 sources.list 中的更改。
sudo apt update
openvas是一个元软件包，它会随自身一起安装一些 Debian 软件包。要安装所有这些软件包，请打开终端并输入：
sudo apt install greenbone-security-assistant openvas-cli openvas-manager openvas-scanner rsync sqlite3 xsltproc