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Follow up from this question, LogBack Syslog not working java
I use command below to view syslog in ubuntu 16.04 but get below result. Is it the correct way to view?
user@xxx:~$ tail -f /var/log/syslog Jun 6 23:08:50 xxx systemd[1]:
Starting Hostname Service... Jun 6 23:08:50 xxx dbus[889]: [system]
Successfully activated service 'org.freedesktop.hostname1' Jun 6
23:08:50 xxx systemd[1]: Started Hostname Service. Jun 6 23:09:41 xxx
gnome-session[2645]: (nautilus:2860): Gtk-WARNING **: Attempting to
read the recently used resources file at
'/home/xxx/.local/share/recently-used.xbel', but the parser failed:
Failed to open file '/home/xxx/.local/share/recently-used.xbel':
Permission denied. Jun 6 23:09:41 xxx org.gtk.vfs.Daemon[2508]:
(gvfsd-recent:15282): Gtk-WARNING **: Attempting to read the recently
used resources file at '/home/xxx/.local/share/recently-used.xbel',
but the parser failed: Failed to open file
'/home/xxx/.local/share/recently-used.xbel': Permission denied. Jun 6
23:09:41 xxx gnome-session[2645]: (zeitgeist-datahub:3069):
Gtk-WARNING **: Attempting to read the recently used resources file at
'/home/xxx/.local/share/recently-used.xbel', but the parser failed:
Failed to open file '/home/seng/.local/share/recently-used.xbel':
Permission denied. Jun 6 23:09:49 xxx gnome-session[2645]:
(nautilus:2860): Gtk-WARNING **: Attempting to read the recently used
resources file at '/home/xxx/.local/share/recently-used.xbel', but the
parser failed: Failed to open file
'/home/xxx/.local/share/recently-used.xbel': Permission denied. Jun 6
23:09:49 xxx org.gtk.vfs.Daemon[2508]: (gvfsd-recent:15282):
Gtk-WARNING **: Attempting to read the recently used resources file at
'/home/xxx/.local/share/recently-used.xbel', but the parser failed:
Failed to open file '/home/xxx/.local/share/recently-used.xbel':
Permission denied. Jun 6 23:09:49 xxx gnome-session[2645]:
(zeitgeist-datahub:3069): Gtk-WARNING **: Attempting to read the
recently used resources file at
'/home/seng/.local/share/recently-used.xbel', but the parser failed:
Failed to open file '/home/xxx/.local/share/recently-used.xbel':
Permission denied. Jun 6 23:17:01 xxx CRON[18877]: (root) CMD ( cd
/ && run-parts --report /etc/cron.hourly)
Try cat /var/log/syslog (small part of the output)
Jun 6 23:37:26 xxx whoopsie[1040]: [23:37:26] online
Jun 6 23:37:26 xxx avahi-daemon[1023]: Registering new address record for 2001:e68:4424:afab:c31f:c843:2351:c58 on wlp6s0.*.
Jun 6 23:37:28 xxx dhclient[19397]: XMT: Solicit on wlp6s0, interval 4340ms.
Jun 6 23:37:32 xxx dhclient[19397]: XMT: Solicit on wlp6s0, interval 9080ms.
Jun 6 23:37:41 xxx dhclient[19397]: XMT: Solicit on wlp6s0, interval 17540ms.
Jun 6 23:37:59 xxx dhclient[19397]: XMT: Solicit on wlp6s0, interval 34190ms.
Jun 6 23:38:09 xxx NetworkManager[1013]: <warn> [1496763489.9447] dhcp6 (wlp6s0): request timed out
Jun 6 23:38:09 xxx NetworkManager[1013]: <info> [1496763489.9448] dhcp6 (wlp6s0): state changed unknown -> timeout
Jun 6 23:38:09 xxx NetworkManager[1013]: <info> [1496763489.9456] dhcp6 (wlp6s0): canceled DHCP transaction, DHCP client pid 19397
Jun 6 23:38:09 xxx NetworkManager[1013]: <info> [1496763489.9456] dhcp6 (wlp6s0): state changed timeout -> done
user@xxx:/$
Try cat /var/log/syslog | tail -f
user@xxx:/$ cat /var/log/syslog | tail -f
Jun 6 23:37:26 xxx whoopsie[1040]: [23:37:26] online
Jun 6 23:37:26 xxx avahi-daemon[1023]: Registering new address record for 2001:e68:4424:afab:c31f:c843:2351:c58 on wlp6s0.*.
Jun 6 23:37:28 xxx dhclient[19397]: XMT: Solicit on wlp6s0, interval 4340ms.
Jun 6 23:37:32 xxx dhclient[19397]: XMT: Solicit on wlp6s0, interval 9080ms.
Jun 6 23:37:41 xxx dhclient[19397]: XMT: Solicit on wlp6s0, interval 17540ms.
Jun 6 23:37:59 xxx dhclient[19397]: XMT: Solicit on wlp6s0, interval 34190ms.
Jun 6 23:38:09 xxx NetworkManager[1013]: <warn> [1496763489.9447] dhcp6 (wlp6s0): request timed out
Jun 6 23:38:09 xxx NetworkManager[1013]: <info> [1496763489.9448] dhcp6 (wlp6s0): state changed unknown -> timeout
Jun 6 23:38:09 xxx NetworkManager[1013]: <info> [1496763489.9456] dhcp6 (wlp6s0): canceled DHCP transaction, DHCP client pid 19397
Jun 6 23:38:09 xxx NetworkManager[1013]: <info> [1496763489.9456] dhcp6 (wlp6s0): state changed timeout -> done
user@xxx:/$
485
The system log typically contains the greatest deal of information by default about your Ubuntu system. It is located at /var/log/syslog, and may contain information other logs do not.
Linux logs will display with the command cd/var/log. Then, you can type ls to see the logs stored under this directory. One of the most important logs to view is the syslog, which logs everything but auth-related messages. Issue the command var/log/syslog to view everything under the syslog.
/var/log/syslog and /var/log/messages store all global system activity data, including startup messages. Debian-based systems like Ubuntu store this in / var/log/syslog , while Red Hat-based systems like RHEL or CentOS use /var/log/messages .
Looks like you are trying to read syslog from Java, not from an interactive terminal. The text looks like a correct output, but with smashed formatting.
tail -f is good for interactive terminals.
Try cat /var/log/syslog, or just open /var/log/syslog as a file (if your process has enough permissions).
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