Can Somebody Please Elaborate On This Statement

I am facing problem in enabling the DNS Log making in named.conf file.
My /etc/named.conf file structure is as follows:
-------------------------------------------------------------
//
// named.conf
//
// Provided by Red Hat bind package to configure the ISC BIND named(8) DNS
// server as a caching only nameserver (as a localhost DNS resolver only).
//
// See /usr/share/doc/bind*/sample/ for example named configuration files.
//

options {
listen-on port 53 { 127.0.0.1; 10.40.124.2; };
listen-on-v6 port 53 { ::1; };
directory "/var/named";
dump-file "/var/named/data/cache_dump.db";
statistics-file "/var/named/data/named_stats.txt";
memstatistics-file "/var/named/data/named_mem_stats.txt";
allow-query { localhost; 10.40.124.2; };
recursion yes;

dnssec-enable yes;
dnssec-validation yes;
dnssec-lookaside auto;

/* Path to ISC DLV key */
bindkeys-file "/etc/named.iscdlv.key";

managed-keys-directory "/var/named/dynamic";
};

logging {
channel default_debug {
file "/var/log/named.run";
severity dynamic;
print-time yes;
};

channel queries_channel {
file "/var/log/queries.log";
severity dynamic;
print-time yes;
print-severity yes;
};
channel security_channel {
file "/var/log/security.log" versions 3 size 5m;
severity debug 3;
print-category yes;
print-severity yes;
print-time yes;
};

channel update_security_channel {
file "/var/log/updates.log" versions 3 size 5m;
severity debug 3;
print-category yes;
print-severity yes;
print-time yes;
};

channel dnssec_channel {
file "/var/log/dnssec.log" versions 3 size 5m;
severity debug 3;
print-category yes;
print-severity yes;
print-time yes;
};

channel xfers_channel {
file "/var/log/zone_transfers.log" versions 3 size 5m;
severity debug 3;
print-category yes;
print-severity yes;
print-time yes;
};

category queries { queries_channel; };
category security { security_channel; };
category update-security { update_security_channel; };
category dnssec { dnssec_channel; };
category xfer-out { xfers_channel; };
};
zone "." IN {
type hint;
file "named.ca";
};

include "/etc/named.rfc1912.zones";
include "/etc/named.root.key";
----------------------------------------------------------------
My DNS Server works fine. Only it cannot make the log.
when I will run this command:
#dig -x 10.40.124.2
the result comes fine but the log is not make in /var/log/queries.log file.
The named is running without chroot enviroment.
Please help me in solving this.

Dear all,

This is long story cut short, with vsftp, if i set this parameters in the vsftp.conf file below

Code:

local_enable=YES
chroot_local_users=YES

I am able to login to the ftp account, see and list my home/user directory, and if i do a cd / or cd .. , i will still be chroot to my /home/user directory.

without, the need to chmod or or chown anything to my /home/user directory

=============================================

With openSSH, internal_sftp, even though I have set the sshd_conf to

Code:

Match user alankoh
X11Forwarding no
AllowTcpForwarding no
ForceCommand internal-sftp
ChrootDirectory /home/%u

I will need to change owner my /home/user directory to have root becomes it owner.
============================================

Q1) why this difference ? How does vsftp chroot without changing the /home/user folder ownership ?

Q2) i realize that openssh ChrootDirectory parameter causes my default login directory to be set as that of the parameter.
(e.g. if i set to "/whatever/xyz", i will be brought to that /whatever/xyz everytime i login to the sftp instead of my /home/user folder.

Why ? I thought that ChrootDirectory is just a security measure to specify the directory to go to in case the user cd to root (e.g. cd /), else not, i should still go to my /home/user folder everytime i login to sftp.

Regards,
Noob

I've worked with Linux in the past, but mostly Windows. Perhaps someone can explain what I am seeing. This isn't a Linux OS, but Tomcat running under Windows. I'm thinking Linux rules apply here, but if this is the wrong forum, I apologize in advance.

I've got an app that runs under Tomcat. I needed to modify an XML config file to change a variable. The path was \app\tomcat\webapps\asset-manager-web\WEB-INF\am\conf\settings. The file was configParams.xml.

To protect myself from messing things up, I first made a copy of configParams.xml and named it configParams-ORIG.xml. I left this in the same folder as the file I was going to edit. I made the required edits and restarted the application service. The app never recognized the changes. Finally, I moved the configParams-ORIG.xml file to another folder, restarted, and everything worked.

Can someone explain why this is? I do this in Windows all the time. Why does having that original file, renamed, in the same folder cause a problem?

I am trying to allow local users to us the ftp for my site (really, any user would work, I just thought this would be easiest). I am trying to make it so that I can upload themes, install plugins, etc on a WordPress site hosted on my Ubuntu 14.04 machine. Here is the contents of my vsftpd.conf file from /etc/

# Example config file /etc/vsftpd.conf
#
# The default compiled in settings are fairly paranoid. This sample file
# loosens things up a bit, to make the ftp daemon more usable.
# Please see vsftpd.conf.5 for all compiled in defaults.
#
# READ THIS: This example file is NOT an exhaustive list of vsftpd options.
# Please read the vsftpd.conf.5 manual page to get a full idea of vsftpd's
# capabilities.
#
#
# Run standalone? vsftpd can run either from an inetd or as a standalone
# daemon started from an initscript.
listen=YES
#
# Run standalone with IPv6?
# Like the listen parameter, except vsftpd will listen on an IPv6 socket
# instead of an IPv4 one. This parameter and the listen parameter are mutually
# exclusive.
#listen_ipv6=YES
#
# Allow anonymous FTP? (Disabled by default)
anonymous_enable=NO
#
# Uncomment this to allow local users to log in.
local_enable=YES
#
# Uncomment this to enable any form of FTP write command.
write_enable=YES
#
# Default umask for local users is 077. You may wish to change this to 022,
# if your users expect that (022 is used by most other ftpd's)
local_umask=022
#
# Uncomment this to allow the anonymous FTP user to upload files. This only
# has an effect if the above global write enable is activated. Also, you will
# obviously need to create a directory writable by the FTP user.
#anon_upload_enable=YES
#
# Uncomment this if you want the anonymous FTP user to be able to create
# new directories.
#anon_mkdir_write_enable=YES
#
# Activate directory messages - messages given to remote users when they
# go into a certain directory.
dirmessage_enable=YES
#
# If enabled, vsftpd will display directory listings with the time
# in your local time zone. The default is to display GMT. The
# times returned by the MDTM FTP command are also affected by this
# option.
use_localtime=YES
#
# Activate logging of uploads/downloads.
xferlog_enable=YES
#
# Make sure PORT transfer connections originate from port 20 (ftp-data).
connect_from_port_20=YES
#
# If you want, you can arrange for uploaded anonymous files to be owned by
# a different user. Note! Using "root" for uploaded files is not
# recommended!
#chown_uploads=YES
#chown_username=whoever
#
# You may override where the log file goes if you like. The default is shown
# below.
#xferlog_file=/var/log/vsftpd.log
#
# If you want, you can have your log file in standard ftpd xferlog format.
# Note that the default log file location is /var/log/xferlog in this case.
#xferlog_std_format=YES
#
# You may change the default value for timing out an idle session.
#idle_session_timeout=600
#
# You may change the default value for timing out a data connection.
#data_connection_timeout=120
#
# It is recommended that you define on your system a unique user which the
# ftp server can use as a totally isolated and unprivileged user.
#nopriv_user=ftpsecure
#
# Enable this and the server will recognise asynchronous ABOR requests. Not
# recommended for security (the code is non-trivial). Not enabling it,
# however, may confuse older FTP clients.
#async_abor_enable=YES
#
# By default the server will pretend to allow ASCII mode but in fact ignore
# the request. Turn on the below options to have the server actually do ASCII
# mangling on files when in ASCII mode.
# Beware that on some FTP servers, ASCII support allows a denial of service
# attack (DoS) via the command "SIZE /big/file" in ASCII mode. vsftpd
# predicted this attack and has always been safe, reporting the size of the
# raw file.
# ASCII mangling is a horrible feature of the protocol.
#ascii_upload_enable=YES
#ascii_download_enable=YES
#
# You may fully customise the login banner string:
#ftpd_banner=Welcome to blah FTP service.
#
# You may specify a file of disallowed anonymous e-mail addresses. Apparently
# useful for combatting certain DoS attacks.
#deny_email_enable=YES
# (default follows)
#banned_email_file=/etc/vsftpd.banned_emails
#
# You may restrict local users to their home directories. See the FAQ for
# the possible risks in this before using chroot_local_user or
# chroot_list_enable below.
#chroot_local_user=YES
#
# You may specify an explicit list of local users to chroot() to their home
# directory. If chroot_local_user is YES, then this list becomes a list of
# users to NOT chroot().
# (Warning! chroot'ing can be very dangerous. If using chroot, make sure that
# the user does not have write access to the top level directory within the
# chroot)
#chroot_local_user=YES
#chroot_list_enable=YES
# (default follows)
#chroot_list_file=/etc/vsftpd.chroot_list
#
# You may activate the "-R" option to the builtin ls. This is disabled by
# default to avoid remote users being able to cause excessive I/O on large
# sites. However, some broken FTP clients such as "ncftp" and "mirror" assume
# the presence of the "-R" option, so there is a strong case for enabling it.
#ls_recurse_enable=YES
#
# Customization
#
# Some of vsftpd's settings don't fit the filesystem layout by
# default.
#
# This option should be the name of a directory which is empty. Also, the
# directory should not be writable by the ftp user. This directory is used
# as a secure chroot() jail at times vsftpd does not require filesystem
# access.
secure_chroot_dir=/var/run/vsftpd/empty
#
# This string is the name of the PAM service vsftpd will use.
pam_service_name=vsftpd
#
# This option specifies the location of the RSA certificate to use for SSL
# encrypted connections.
rsa_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
# This option specifies the location of the RSA key to use for SSL
# encrypted connections.
rsa_private_key_file=/etc/ssl/private/ssl-cert-snakeoil.key

Good evening;
Following instructions on-line I attempted to create a bootable USB drive (32GB Sandsik extreme) with Linux 17.1 installed to enable a trial before attempting a permanent install beside windows 7 on a new computer with Win7 prof. installed.

On the usb I see a 4.0 GB area highlighted in G Parted but not accessible from the Linux file manager. This shows up as a ~1.4 GB sub-directory titled casper. and also as 4.0 GB 'file' named casper-rw. Can anyone explain what is the purpose of this sub-directory? The software I used to create the usb bootable drive and install Linux to is 'Universal-USB-Installer-1.9.5.9'. This is a windows executable. My intent was to create a bootable usb drive for Linux that also contained my required hardware drivers, etc. This doesn't appear to be working 100%; although Linux 17.1 boots the nvidia hardware drivers do not appear to be available even though I downloaded these and they are on the same usb. On boot-up a message box indicates that hardware acceleration is not enabled and higher than normal processor usage may occur.

Any assistance / direction, etc. would be greatly appreciated.

Regards;
Mike

I am using a shell script named by test.sh, for example containing
Code:

address="$PWD"
echo "$address"

.
If I put it in folder temp1, and run test.sh, then it will give me the address of the current directory. But if I am now in folder temp2, and I want to run test.sh, I always need to copy test.sh to folder temp2, and then run it. Is there a way that I can run test.sh without copying it? I am not root user.

Hi

I have a folder :

Code:

/usr/local/src/myfolder

and i have there a few folders and files ...

Now i want to delete from this folder the files named:

Code:

file1.txt 
image.jpg
info.html
another.txt

and leave all the rest folders and files...

How is the correct syntax for this?

If it is possible to not use cd /usr/local/src/myfolder and then rm -r .... so i can run it from everywhere ....

Thanks

Hi All,

Please help me. I'm following the book - ' DNS and BIND, 5th Ed By Paul Albitz, Cricket Liu '. This RNDC is driving me crazy. I spent all day trying to configure rndc. Tried every possible combination in config files, but I just cant control remote server. Tried many tutorials from google, nothing helped. LQ is my last hope.

So, my story goes like this...

MASTER BIND SERVER:
Host: toystory.movie.edu
IP: 10.249.249.3/24
OS: CentOS 7.1

SLAVE BIND SERVER:
Host: wormhole.movie.edu
IP: 10.249.249.2/24
OS: CentOS 6.6

MASTER SERVER (toystory) CONFIGURATION FILES:
Code:

[root@toystory ~]# cat /etc/rndc.conf
key "toystory-key" {
	algorithm hmac-md5;
	secret "K9qBsQwusP6430cykS2AeA==";
};
options {
	default-key "toystory-key";
	default-server 127.0.0.1;
	default-port 953;
};

[root@toystory ~]# cat /etc/named.conf
key "toystory-key" {
	algorithm hmac-md5;
	secret "K9qBsQwusP6430cykS2AeA==";
};
controls {
	inet 127.0.0.1 port 953
		allow { 127.0.0.1; } keys { "toystory-key"; };
};
key "wormhole-key" {
	algorithm hmac-md5;
	secret "7PvoY3oysQz8DyASiUTlNA==";
};
controls {
	inet 10.249.249.3 port 953
		allow { 10.249.249.2; } keys { "wormhole-key"; };
};

SLAVE SERVER (wormhole) CONFIGURATION FILES:
Code:

[root@wormhole ~]# cat /etc/rndc.conf
key "wormhole-key" {
	algorithm hmac-md5;
	secret "7PvoY3oysQz8DyASiUTlNA==";
};
options {
	default-key "wormhole-key";
	default-server 127.0.0.1;
	default-port 953;
};

[root@wormhole ~]# cat /etc/named.conf
key "wormhole-key" {
	algorithm hmac-md5;
	secret "7PvoY3oysQz8DyASiUTlNA==";
};
controls {
	inet 127.0.0.1 port 953
		allow { 127.0.0.1; } keys { "wormhole-key"; };
};
server 10.249.249.3 {
  keys { "wormhole-key"; };
};

TESTING:

MASTER (toystory):
Code:

[root@toystory ~]# rndc status
version: 9.9.4-RedHat-9.9.4-18.el7_1.1 <id:8f9657aa>
CPUs found: 1
worker threads: 1
UDP listeners per interface: 1
number of zones: 104
debug level: 0
xfers running: 0
xfers deferred: 0
soa queries in progress: 0
query logging is OFF
recursive clients: 0/0/1000
tcp clients: 0/100
server is up and running

[root@toystory ~]# rndc -s wormhole.movie.edu status
rndc: connect failed: 10.249.249.2#953: connection refused

SLAVE (wormhole):
Code:

[root@wormhole ~]# rndc status
version: 9.8.2rc1-RedHat-9.8.2-0.30.rc1.el6_6.2
CPUs found: 1
worker threads: 1
number of zones: 22
debug level: 0
xfers running: 0
xfers deferred: 0
soa queries in progress: 0
query logging is OFF
recursive clients: 0/0/1000
tcp clients: 0/100
server is up and running

What I'm doing wrong? Please Help!!!

Thanks

to create a directory named sysadmin1/my_peeps/$DATE ,, am i to: echo sysadmin1/my_peeps/$DATE >> .bash_login ?? or do i: vi .bash_login and manually type the commands in there??,, i have the DATE variable already set. im looking for another way besides using mkdir.. thats my first question..

my real problem and second question is, how do i redirect the output of the w command to a file in my_peeps.. so, after that dir is created, do i do w > sysadmin1/my_peeps ??

Hi everybody,
i am using centOS 6.6 and 7. i configure access.conf as follow.

Step 1: vi /etc/pam.d/sshd
account required pam_access.so

Step 2: vi /etc/security/access.conf
- : ALL : ALL

i am still able to access this machine with any user.

please help me to solve

BR/satti