clamav升级问题报错2：Can‘t query current.cvd.clamav.net

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freshclam升级报错：

[root@clamav clamav]# freshclam
ClamAV update process started at Wed Mar  1 15:39:55 2023
WARNING: Can't query current.cvd.clamav.net
WARNING: Invalid DNS reply. Falling back to HTTP mode.
WARNING: Can't get information about database.clamav.net: Temporary failure in name resolution
WARNING: Can't download main.cvd from database.clamav.net
Trying again in 5 secs...
ClamAV update process started at Wed Mar  1 15:39:55 2023
WARNING: Can't query current.cvd.clamav.net
WARNING: Invalid DNS reply. Falling back to HTTP mode.
WARNING: Can't get information about database.clamav.net: Temporary failure in name resolution
WARNING: Can't download main.cvd from database.clamav.net
Trying again in 5 secs...
ClamAV update process started at Wed Mar  1 15:39:55 2023
WARNING: Can't query current.cvd.clamav.net
WARNING: Invalid DNS reply. Falling back to HTTP mode.
ERROR: Can't get information about database.clamav.net: Temporary failure in name resolution
ERROR: Can't download main.cvd from database.clamav.net
Giving up on database.clamav.net...
Update failed. Your network may be down or none of the mirrors listed in /opt/clamav/etc/freshclam.conf is working. Check http://www.clamav.net/support/mirror-problem for possible reasons.

freshclam升级报错原因：

这个问题可能是由于网络连接问题导致的。"Can’t query current.cvd.clamav.net"的错误提示表明ClamAV无法连接到病毒数据库服务器。

解决方式：

1 先ping以下病毒库

ping  database.clamav.net

可以ping通

ping database.clamav.net 得到一个ip 如104.16.219.5 再然后改/etc/hosts这个文件。加入一行：

[root@clamav clamav]# vim /etc/hosts
104.16.219.5 database.clamav.net

2 重启网络：service network restart或者/etc/init.d/network restart

3 再次升级ClamAV病毒库

freshclam

升级成功。