小编Red*_*EON的帖子

我用rm -R命令删除了一个重要的目录。这是一个非常流行的主机数据。它位于/var/zpanel/hostdata/ayrintilih 删除 ayrintilih 目录后，一切都消失了。

我试图用ext4magic程序取消删除。但它需要另一个硬盘卷进行恢复。

错误信息：

ERROR: can not use "/root/recoveried" for recover directory. It's the same filesystem : "/dev/dm-0"

我的 ISP 刚刚回复了我的请求：

Unfortunately there is no way to add another Volume to a virtual Instance. 
If it would be a dedicated Server, we could do it, but not in a Cloudserver. 
You could try to minimize the partition and create another one, that would 
count as another Volume. We also recommend to have …

我的邮件服务器在垃圾邮件的黑名单中。我重新配置了 postfix。之后我的客户收到此错误，他们无法发送电子邮件。

404 4.5.2 <PLLAMNAZIFE>: Helo command rejected: need fully-qualified hostname

在 Mail.log 中：

postfix/smtpd[9853]: NOQUEUE: reject: RCPT from unknown[xx.xx.xx.xx]: 
404 4.5.2 <PLLAMNAZIFE>: Helo command rejected: need fully-qualified hostname; 
from=<info@domain.com> to=<mail@mail.com> proto=ESMTP helo=<PLLAMNAZIFE>

在我的 main.cf 中：

   # rules restrictions
smtpd_client_restrictions =
        permit_sasl_authenticated 
smtpd_helo_restrictions =
        permit_mynetworks,
        reject_non_fqdn_helo_hostname,
        reject_invalid_helo_hostname,
        permit
smtpd_sender_restrictions =
smtpd_recipient_restrictions = 
        permit_sasl_authenticated, 
        reject_unauth_pipelining,
        reject_non_fqdn_recipient,
        reject_unknown_recipient_domain,
        permit_mynetworks, 
        reject_unauth_destination, 
        reject_invalid_hostname, 
        reject_non_fqdn_sender, 
        reject_unknown_sender_domain,
        reject_rhsbl_client blackhole.securitysage.com, 
        reject_rhsbl_sender blackhole.securitysage.com, 
        reject_rbl_client zen.spamhaus.org, 
        reject_rbl_client bl.spamcop.net, 
        reject_rbl_client blackholes.easynet.nl, 
        reject_rbl_client cbl.abuseat.org, 
        reject_rbl_client proxies.blackholes.wirehub.net, 
        reject_rbl_client dnsbl.njabl.org

smtpd_helo_required = yes …

/var/log/maillog 中的错误行

Sep 22 12:08:20 sun amavis[4493]: (04493-09) (!)run_av (ClamAV-clamd) FAILED - unexpected , output="/var/spool/amavisd/tmp/amavis-20130922T052321-04493-crApLkq5/parts: lstat() failed: Permission denied. ERROR\n"
Sep 22 12:08:20 sun amavis[4493]: (04493-09) (!)ClamAV-clamd av-scanner FAILED: CODE(0x29185c0) unexpected , output="/var/spool/amavisd/tmp/amavis-20130922T052321-04493-crApLkq5/parts: lstat() failed: Permission denied. ERROR\n" at (eval 113) line 897.
Sep 22 12:08:20 sun amavis[4493]: (04493-09) (!)WARN: all primary virus scanners failed, considering backups

# cat /etc/passwd | grep "amavis\|clamav"
clam:x:495:493:Clam Anti Virus Checker:/var/lib/clamav:/sbin/nologin
amavis:x:494:492:User for amavisd-new:/var/spool/amavisd:/sbin/nologin
# id amavis
uid=494(amavis) gid=492(amavis) groups=492(amavis),493(clam)
# id …