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after update bind9 cannot create log in /var/log/bind :isc_stdio_open '/var/log/bind/named.log' fai

hqy hqy 发表于2020-06-29 18:16:17 浏览2713 评论0

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Just upgraded debian and named is not starting now. I have 2 log channels configured:

    channel "named_log" {
        file "/var/log/bind/named.log" versions 10 size 2m;
        severity dynamic;
        print-category yes;
        print-severity yes;
        print-time yes;
    };

    channel "query_log" {
        file "/var/log/bind/query.log" versions 2 size 100k;
        severity dynamic;
        print-severity yes;
        print-time yes;
    };

Everything was working till upgrade. Here's the directory:

root@dom:/var/log/bind# ls -la /var/log/bind
total 156
drwxrwsr-x  2 bind bind   4096 Oct 30 17:14 .
drwxr-xr-x 36 root root   4096 Oct 30 15:41 ..
-rw-r-----  1 bind bind 149847 Oct 30 17:45 bind9.log
root@dom:/var/log/bind# id bind
uid=110(bind) gid=118(bind) groups=118(bind)
root@dom:/var/log/bind# ls -lna /var/log/bind
total 156
drwxrwsr-x  2 110 118   4096 Oct 30 17:14 .
drwxr-xr-x 36   0   0   4096 Oct 30 15:41 ..
-rw-r-----  1 110 118 149847 Oct 30 17:45 bind9.log
root@dom:/var/log/bind# named -v
BIND 9.11.5-P4-5.1-Debian (Extended Support Version) <id:998753c>
root@dom:~# ps -eo pid,gid,euid,comm|grep named
 6677   118   110 named

But have this:

Oct 30 17:04:35 dom named[4997]: configuring command channel from '/etc/bind/rndc.key'
Oct 30 17:04:35 dom named[4997]: command channel listening on 127.0.0.1#953
Oct 30 17:04:35 dom named[4997]: isc_stdio_open '/var/log/bind/named.log' failed: permission denied
Oct 30 17:04:35 dom named[4997]: configuring logging: permission denied
Oct 30 17:04:35 dom named[4997]: loading configuration: permission denied
Oct 30 17:04:35 dom named[4997]: exiting (due to fatal error)

I temporary enabled login for user bind and can confirm that this user can create and modify files in the /var/log/bind/

Please help

upd: did chmod 777 /var/log/bind - the same error



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