11-26-2019
Beginning my programming/scripting path
Hey all,
I am senior network security admin and started my cyber security master study 2 month ago. I definitely believe in my network and network security skills therefore want to mostly hardening cyber qualities. Along with cyber security I am really interested in programming which I believe will benefit my Cyber career very much. I have already started learning BASH Scripting and after some time I will try learning Python because these 2 are only ones which really catch my interest.
As you known learning and practicing are different things. Me personally usually get mostly from practicing. Therefore I would like to find any source like with task and answers in other page which can challenge me with BASH Scripting exercises so that I can work on them. Do you know any website which can I get benefit from?
Thanks in advance!
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LEARN ABOUT OPENSOLARIS
tnchkdb
tnchkdb(1M) System Administration Commands tnchkdb(1M)
NAME
tnchkdb - check file syntax of trusted network databases
SYNOPSIS
/usr/sbin/tnchkdb [-h path] [-t path] [-z path]
DESCRIPTION
tnchkdb checks the syntax of the tnrhtp, tnrhdb, and tnzonecfg databases. By default, the path for each file is:
o /etc/security/tsol/tnrhtp
o /etc/security/tsol/tnrhdb
o /etc/security/tsol/tnzonecfg
You can specify an alternate path for any or all of the files by specifying that path on the command line by using the -h (tnrhdb), -t
(tnrhtp) and -z (tnzonecfg) options. The options are useful when testing a set of modified files before installing the files as new system
databases.
All three database files are checked for integrity. tnchkdb returns an exit status of 0 if all of the files are syntactically and, to the
extent possible, semantically correct. If one or more files have errors, then an exit status of 1 is returned. If there are command line
problems, such as an unreadable file, an exit status of 2 is returned. Errors are written to standard error.
To avoid cascading errors, when there are errors in tnrhtp, the template names in tnrhdb are not validated.
tnchkdb can be run at any label, but the standard /etc/security/tsol files are visible only in the global zone.
OPTIONS
-h [ path ] Check path for proper tnrhdb syntax. If path is not specified, then check /etc/security/tsol/tnrhdb.
-t [ path ] Check path for proper tnrhtp syntax. If path is not specified, then check /etc/security/tsol/tnrhtp.
-z [ path ] Check path for proper tnzonecfg syntax. If path is not specified, then check /etc/security/tsol/tnzonecfg.
EXAMPLES
Example 1 Sample Error Message
The tnchkdb command checks for CIPSO errors. In this example, the admin_low template has an incorrect value of ADMIN_HIGH for its default
label.
# tnchkdb
checking /etc/security/tsol/tnrhtp ...
tnchkdb: def_label classification 7fff is invalid for cipso labels:
line 14 entry admin_low
tnchkdb: def_label compartments 241-256 must be zero for cipso labels:
line 14 entry admin_low
checking /etc/security/tsol/tnrhdb ...
checking /etc/security/tsol/tnzonecfg ...
FILES
/etc/security/tsol/tnrhdb
Trusted network remote-host database
/etc/security/tsol/tnrhtp
Trusted network remote-host templates
/etc/security/tsol/tnzonecfg
Trusted zone configuration database
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWtsu |
+-----------------------------+-----------------------------+
|Interface Stability |See below. |
+-----------------------------+-----------------------------+
The command line is Committed. The output is Uncommitted.
SEE ALSO
tnd(1M), tnctl(1M), attributes(5)
How to Check the Syntax of Trusted Network Databases in Solaris Trusted Extensions Administrator's Procedures
NOTES
The functionality described on this manual page is available only if the system is configured with Trusted Extensions.
It is possible to have inconsistent but valid configurations of tnrhtp and tnrhdb when LDAP is used to supply missing templates.
SunOS 5.11 20 Jul 2007 tnchkdb(1M)