Ytdyklly

Was trying to enable log for chroot users
May have done sth. wrong ,find ls -l in /var/log most log files size stay 0.
Try to fix it followed this answer

# systemctl restart systemd-journald.socket

# systemctl start rsyslogd

Failed to start rsyslogd.service: Unit rsyslogd.service not found.

and this answer

# logger -s "hellow"

logger: socket /dev/log: No such file or directory

# sudo rsyslogd -N6 | head -10

sudo: unable to resolve host iZ26v45oj3yjtmZ

rsyslogd: version 8.16.0, config validation run (level 6), master config /etc/rsyslog.conf

rsyslogd: command 'KLogPermitNonKernelFacility' is currently not permitted - did you already set it via a RainerScript command (v6+ config)? [v8.16.0 try http://www.rsyslog.com/e/2222 ]



# ls /dev/log

ls: cannot access '/dev/log': No such file or directory

And checked syslogd is running

#lsof -f -p 5379

syslogd 5379 root   16w   REG              253,1        0    1844521 /var/log/news/news.err

syslogd 5379 root   17w   REG              253,1        0    1844536 /var/log/news/news.notice

syslogd 5379 root   18w   REG              253,1     3282    1580873 /var/log/debug.1 (deleted)

syslogd 5379 root   19w   REG              253,1   110492    1580898 /var/log/messages.1 (deleted)

syslogd 5379 root   20u  FIFO                0,6      0t0        423 /dev/xconsole

syslogd 5379 root   21u  unix 0xffff880138be9400      0t0     212524 /dev/log type=DGRAM

The /etc/rsyslog.conf file

#################

#### MODULES ####

#################



module(load="imuxsock") # provides support for local system logging

module(load="imklog")   # provides kernel logging support

#module(load="immark")  # provides --MARK-- message capability



# provides UDP syslog reception

#module(load="imudp")

#input(type="imudp" port="514")



# provides TCP syslog reception

#module(load="imtcp")

#input(type="imtcp" port="514")

# Enable non-kernel facility klog messages

$KLogPermitNonKernelFacility on



###########################

#### GLOBAL DIRECTIVES ####

###########################



#

# Use traditional timestamp format.

# To enable high precision timestamps, comment out the following line.

#

$ActionFileDefaultTemplate RSYSLOG_TraditionalFileFormat



# Filter duplicated messages

$RepeatedMsgReduction on

#

# Set the default permissions for all log files.

#

$FileOwner syslog

$FileGroup adm

$FileCreateMode 0640

$DirCreateMode 0755

$Umask 0022

$PrivDropToUser syslog

$PrivDropToGroup syslog



#

# Where to place spool and state files

#

$WorkDirectory /var/spool/rsyslog



#

# Include all config files in /etc/rsyslog.d/

#

$IncludeConfig /etc/rsyslog.d/*.conf

The /etc/syslog.conf file

#  /etc/syslog.conf     Configuration file for inetutils-syslogd.

#

#                       For more information see syslog.conf(5) manpage.



#

# First some standard logfiles.  Log by facility.

#



auth,authpriv.*                 /var/log/auth.log

*.*;auth,authpriv.none          -/var/log/syslog

#cron.*                         /var/log/cron.log

daemon.*                        -/var/log/daemon.log

kern.*                          -/var/log/kern.log

lpr.*                           -/var/log/lpr.log

mail.*                          -/var/log/mail.log

user.*                          -/var/log/user.log

uucp.*                          /var/log/uucp.log



#

# Logging for the mail system.  Split it up so that

# it is easy to write scripts to parse these files.

#

mail.info                       -/var/log/mail.info

mail.warn                       -/var/log/mail.warn

mail.err                        /var/log/mail.err



# Logging for INN news system

#

news.crit                       /var/log/news/news.crit

news.err                        /var/log/news/news.err

news.notice                     -/var/log/news/news.notice



#

# Some `catch-all' logfiles.

#

*.=debug;

        auth,authpriv.none;

        news.none;mail.none     -/var/log/debug

*.=info;*.=notice;*.=warn;

        auth,authpriv.none;

        cron,daemon.none;

        mail,news.none          -/var/log/messages



#

# Emergencies are sent to everybody logged in.

#

*.emerg                         *



#

# I like to have messages displayed on the console, but only on a virtual

# console I usually leave idle.

#

#daemon,mail.*;

#       news.=crit;news.=err;news.=notice;

#       *.=debug;*.=info;

#       *.=notice;*.=warn       /dev/tty8



# The named pipe /dev/xconsole is for the `xconsole' utility.  To use it,

# you must invoke `xconsole' with the `-file' option:

#

#    $ xconsole -file /dev/xconsole [...]

#

# NOTE: adjust the list below, or you'll go crazy if you have a reasonably

#      busy site..

#

daemon.*;mail.*;

        news.crit;news.err;news.notice;

        *.=debug;*.=info;

        *.=notice;*.=warn       |/dev/xconsole

Problems here are:
1.

Failed to start rsyslogd.service

2.

ls: cannot access '/dev/log': No such file or directory

3. 
   ls -l /var/log most log file's size is 0

You cannot log inside a chroot because you need a /dev/log relative to the root of your chroot. (this is a known "feature").

Back in rsyslog, you add the a similar configuration to this one:

/etc/rsyslogd.conf

$AddUnixListenSocket /chroots/user1/dev/log

And restart rsyslog (outside the chroot)

See How to log internal-sftp chroot jailed users