剛剛把NextCloud更新到14.0.3，后臺又出現了一堆警告，也是夠煩的。

之前寫過 寶塔面板部署NextCloud逐一解決后臺安全及設置警告，那個是基于Nextcloud 13.x的，所以就再補充記錄一下解決如下的警告。

Use of the the built in php mailer is no longer supported. Please update your email server settings

您的網頁服務器未正確設置以解析“/.well-known/caldav”

您的網頁服務器未正確設置以解析“/.well-known/carddav”

The database is missing some indexes. Due to the fact that adding indexes on big tables could take some time they were not added automatically. By running “occ db:add-missing-indices” those missing indexes could be added manually while the instance keeps running. Once the indexes are added queries to those tables are usually much faster.

在數據表 “oc_share” 中無法找到索引 “parent_index” .

在數據表 “oc_filecache” 中無法找到索引 “fs_mtime” .

HTTP的請求頭 “Referrer-Policy” 未設置為 “no-referrer”, “no-referrer-when-downgrade”, “strict-origin” or “strict-origin-when-cross-origin”. 這會導致信息泄露. 請查閱 W3C 建議

1.Use of the the built in php mailer is no longer supported. Please update your email server settings

大意就是php自帶的mail組件不再被nextcloud支持，需要使用smtp方式發送郵件。

其實就是讓你設置一個smtp服務器信息，便于發送郵件，關于SMTP這里不再詳述。

2.您的網頁服務器未正確設置以解析“/.well-known/caldav”及您的網頁服務器未正確設置以解析“/.well-known/carddav”

這兩個警告可以一起解決，出現該提示一般是因為這兩個路徑的偽靜態設置有問題，導致無法正常訪問。

解決方法就是添加兩行重定向配置

rewrite /.well-known/carddav /remote.php/dav permanent;

rewrite /.well-known/caldav /remote.php/dav permanent;

3.The database is missing some indexes. Due to the fact that adding indexes on big tables could take some time they were not added automatically. By running “occ db:add-missing-indices” those missing indexes could be added manually while the instance keeps running. Once the indexes are added queries to those tables are usually much faster.

在數據表”oc_share” 中無法找到索引”parent_index”

在數據表”oc_filecache” 中無法找到索引”fs_mtime”

大意是說，數據庫的一些索引丟失了，需要使用OCC修復一下。OCC是owncloud的命令行，而nextcloud又是基于owncloud開發的，所以需要用到OCC來修復丟失的數據庫索引。

修復命令為：

php occ db:add-missing-indices

SSH進入服務器nextcloud的根目錄，并執行修復命令

出現如下錯誤

Console has to be executed with the user that owns the file config/config.php

Current user: root

Owner of config.php: www

Try adding ‘sudo -u www ‘ to the beginning of the command (without the single quotes)

好吧，需要使用www用戶權限來修改，再次執行

sudo -u www php occ db:add-missing-indices

修復成功！

4.HTTP的請求頭 “Referrer-Policy” 未設置為 “no-referrer”, “no-referrer-when-downgrade”, “strict-origin” or “strict-origin-when-cross-origin”. 這會導致信息泄露

大意是，需要設置一個Referrer-Policy請求頭來提高安全性。Nginx配置文件里添加：

add_header Referrer-Policy "no-referrer";

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至此，Nextcloud升級到14.0.3后出現的一些新的警告提示已全部消滅干凈

總結

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