linux
Monitoring mailbox users can be done in many serveral ways via web interface or via terminal or via bash scripts. With the usual mbox type emails, incoming new email messages are automatically redirected to each users’ own spool file. This spool mail is by default located and stored in /var/spool/mail. From there, the spool file [...]
Email, Linux command, create, crontab, determine, difference, email, file, functionality, headings, incoming, interface, linux, listing, mbox, outlook, pipes, possibilities, redirection, scripts, server, servers, tools,
This entry will cover a one shot linux fetchmail command of retrieving GMail email messages using terminal without any further fetchmail configuration setup. Read on. Fetchmail is one good linux tool for fetching and retrieving remote emails. Fetchmail works and retrieves emails from remote email servers and downloads them locally into your local linux box. [...]
IT-Tips, Linux command, configuration, configure, Copy, daemons, email, enable, file, gmail, hosts, install, linux, logins, passwords, port, ports, possibilities, roots, sbin, sendmail, server, servers, services, source, tools, usr, Windows,
Let us assume that we have a situation where in your boss wants you to remove all spaces from his MP3/OGG/WMV/MPG filenames and replace them with underscore character. To accomplish this task of replacing space character with underscore character is real easy for a common linux task and can be easily done using linux renaming [...]
IT-Tips, Linux command, file, folders, Identify, linux, multiple, rename, tools,
A very old tip and trick on blocking yahoo chat messenger from connecting to internet, as per request. Considering an approved management policies, there are several ways to block yahoo chat messenger from connecting to internet coming from inside your network, depending on what equipment and boxes you have on ground. If you happen to [...]
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This document entry however covers a foundation approach and mostly used tar arguments on backing up data using the linux command tar. ============================================= Data backup samples using Tar Linux command ============================================= A very simple usage of tar # tar cvf backup.tar * Legend: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -c create a new tar file -v verbose mode -f select [...]
Backup, Linux accesses, Backup, bases, command, compress, connection, Copy, create, crontab, date, difference, directory, enable, extension, file, filesize, fly, folders, Generator, grep, group, help, hosts, Identify, images, linux, listing, logs, multiple, partition, partitions, passwords, recursion, recursively, scripts, secure, Security, shell, source, ssh, sync, system, systems, what,
RSync backups data and does it very clean and well. Rsync only transfers those data that have been modified and changed so that the destination host has an exact replica from the source host. Rysnc is a command line backup tool that handles data transfers in an effective and secure manner like any other known [...]
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The Multi Router Traffic Grapher (MRTG) is a tool to monitor the traffic load on network-links. MRTG generates HTML pages containing PNG images which provide a LIVE visual representation of this traffic. MRTG is basically used for generating graphs to a device, network host, IP-based appliances for monitoring usage, live data and statistics usage. This [...]
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Media Access Control address (MAC address) or Ethernet Hardware Address (EHA) or hardware address or adapter address is a quasi-unique identifier attached to most network adapters (NICs). It is a number that acts like a name for a particular network adapter, so, for example, the network cards (or built-in network adapters) in two different computers [...]
Firewall, Linux, Security accesses, attachments, bases, client, command, computer, configuration, configure, difference, firewall, group, hosts, Identify, install, interface, kernel, linux, listing, mac, machine, multiple, network, networking, nic, port, ports, possibilities, protocol, redhat, router, server, servers, source, squid, switch, table, Windows,
BIND DNS are nameservers responsible basically for resolving domain names or hostnames into their equivalent IP addresses. Websites or domain names have their own equivalent IP addresses that are usually managed and provided by the same website firms. If somebody is browsing a website from his browser, this website is being resolved, looked up and [...]
DNS, Linux accesses, acl, bind, check, chroot, command, config, configuration, configure, connection, create, directory, edit, edition, equivalents, file, folders, grep, group, hostname, hosts, install, interface, linux, listing, logs, multiple, nameservers, netstat, network, networking, port, ports, recursion, recursively, server, servers, services, system, systems,
This is HTOP, an interactive process viewer for Linux. It is a text-mode application (for console or X terminals) and requires ncurses. Tested with Linux 2.4 and 2.6. HTOP process viewer is not designed to replace the current well used linux ‘top’ command, but htop is an alternative with newly added and enhanced features that [...]
Linux attachments, bases, command, comparison, configuration, configure, difference, functionality, group, help, install, interface, kernel, linux, listing, memory, multiple, prevent, processors, switch, system, systems,
We can never remove the fact that some companies still use any other desktop operating systems from their network. Several reasons for these are due to commercial and propriety softwares and customized applications that currently being managed and needed by certain specific company departments, whether those clients are located remotely or just a single department [...]
Linux authenticate, bases, capability, citrix, client, command, compress, configuration, configure, connection, extension, firewall, hosts, install, linux, listing, logins, machine, network, networking, passwords, patches, port, ports, possibilities, protocol, queries, redirection, server, servers, services, source, system, systems, tools, unix, Windows,
How to know which port is open from unmanaged remote host? How to determine running application and services from remote host? How to do basic port scanning against a host? How to confirm ports opened from remote host? Here are a several ways to do port scanning and know which port/services are currently opened from [...]
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The Trivial File Transfer Protocol (TFTP) is normally used only for booting diskless workstations. The tftp-server package provides the server for TFTP, which allows users to transfer files to and from a remote machine. TFTP provides very little security, and should not be enabled unless it is expressly needed. The TFTP server is run from [...]
Linux, Networking accesses, activation, authenticate, boot, client, config, configuration, configure, connection, create, daemons, enable, extension, file, firewall, folders, grep, group, install, linux, machine, netstat, ping, port, ports, protocol, roots, sbin, secure, Security, server, servers, services, Standalone, system, systems, upload, usr,
A lot of powerful monitoring tools are freely available from linux world. One of them is Nagios. Nagios is a fairly complex linux monitoring tool that determines current status of target host or equipment. Two good things about Nagios is that Nagios supports web-enabled administration page and user view-only mode account. The other one is [...]
Linux, Monitoring accesses, alias, apache, authenticate, Backup, bases, blog, check, cisco, client, command, config, configuration, configure, create, daemons, determine, difference, downtime, edit, edition, email, enable, extension, file, folders, fqdn, functionality, Generator, group, help, hostname, hosts, httpd, images, install, interface, lib, linux, listing, logs, network, networking, passwords, ping, roots, router, secure, Security, server, servers, services, stop, system, systems, targeted, tools, usr,
At times, when dealing with text file that contains numeric values that are separated by white space, there is a need to convert white spaces between numbers into line breaks or new lines. Here’s a quick tip on how to convert white space to new lines or line breaks. As an example, a created text [...]
IT-Tips, Linux command, create, file, linux,
