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Operating Systems Linux Red Hat RHEL 6 plain telnet & ftp servers Post 302740759 by admin_xor on Thursday 6th of December 2012 05:58:14 PM
Old 12-06-2012
Quote:
I've personally never understood the use, some distros have it, some don't
True, xinetd is not that much used now a days. But it sure does a good job of make the system resources available for other use. For an example, a PXE server serving TFTP requests. Now, do you really install OSes 24x7? So there's really no use of TFTP server daemon running all the time consuming memory and doing close to nothing. But, if it's controlled by xinetd, the service only started when you get a request. A server which serves occasional ftp requests, can actually use xinetd.

Well, RHEL 6 has vsftpd as the FTP server and telnet-server package for the telnet server. To install these pacakges, you would have to make use of the installation DVD as yum repository. Let me help you with that:

1. Create a file /etc/yum.repos.d/local.repo with the following contents:
Code:
[LocalRepo]
name=DVD Repo
baseurl=file:///mnt/dvd
enabled=1
gpgcheck=0

2. Create a dir /mnt/dvd and mount the DVD there
Code:
mount -t iso9660 -o ro /dev/sr0 /mnt/dvd

3. Use yum command to install the packages
Code:
yum install vsftpd telnet-server xinetd -y

/etc/inittab is almost empty because Sys V init has been abandoned to embrace upstart which can start multiple services simultaneously reducing the overall boot time. /etc/inittab is there just to define the default runlevel.

Hope this gets you started! Smilie
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reposync(1)															       reposync(1)

NAME
reposync - synchronize yum repositories to a local directory SYNOPSIS
reposync [options] DESCRIPTION
reposync is used to synchronize a remote yum repository to a local directory, using yum to retrieve the packages. OPTIONS
-h, --help Display a help message, and then quit. -c CONFIG, --config=CONFIG Config file to use (defaults to /etc/yum.conf). -a ARCH, --arch=ARCH Act as if running the specified arch (default: current arch, note: does not override $releasever. x86_64 is a superset for i*86.). --source Also download .src.rpm files. -r REPOID, --repoid=REPOID Specify repo ids to query, can be specified multiple times (default is all enabled). -t, --tempcache Use a temp dir for storing/accessing yum-cache. -p DESTDIR, --download_path=DESTDIR Path to download packages to: defaults to current directory. -g, --gpgcheck Remove packages that fail GPG signature checking after downloading. exit status is '1' if at least one package was removed. -u, --urls Just list urls of what would be downloaded, don't download. -l, --plugins Enable yum plugin support. -n, --newest-only Download only newest packages per-repo. -q, --quiet Output as little information as possible. EXAMPLES
Sync all packages from the 'updates' repo to the current directory: reposync --repoid=updates Sync only the newest packages from the 'updates' repo to the current directory: reposync -n --repoid=updates Sync packages from the 'updates' and 'extras' repos to the current directory: reposync --repoid=updates --repoid=extras Sync all packages from the 'updates' repo to the repos directory: reposync -p repos --repoid=updates Sync all packages from the 'updates' repo to the repos directory excluding x86_64 arch. Edit /etc/yum.conf adding option exclude=*.x86_64. Then: reposync -p repos --repoid=updates FILES
reposync uses the yum libraries for retrieving information and packages. If no configuration file is specified, the default yum configura- tion will be used. /etc/yum.conf /etc/yum/repos.d/ SEE ALSO
yum.conf (5) http://yum.baseurl.org/ AUTHORS
See the Authors file included with this program. BUGS
There are of course no bugs, but should you find any, you should first consult the FAQ section on http://yum.baseurl.org/wiki/Faq and if unsuccessful in finding a resolution contact the mailing list: yum-devel@lists.baseurl.org. To file a bug use http://bugzilla.redhat.com for Fedora/RHEL/Centos related bugs and http://yum.baseurl.org/report for all other bugs. 27 April 2007 reposync(1)
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