Showing posts from July, 2017

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Hidden Ways To Get More From Your Gmail Address

I recently discovered some little-known ways to use your Gmail address that can give you greater control over your inbox and save you some time and headache. When you choose a Gmail address, you actually get more than just "" Here are two different ways you can modify your Gmail address and still get your mail:
Append a plus ("+") sign and any combination of words or numbers after your email address. For example, if your name was, you could send mail to or one or several dots (".") anywhere in your email address. Gmail doesn't recognize periods as characters in addresses -- we just ignore them. For example, you could tell people your address was, or (We understand that there has been some confusion about this in the past, but to settle it once and for all, you can indeed receive …

Best Free Linux Firewalls of 2017

ClearOS ClearOS is by far the sleekest looking firewall distro in this roundup. It's obvious that a lot of time and care has gone into developing the interface. IPCop This distro, while entirely separate from IPFire, also uses helpful colour-coding to represent different connections. Green is for LAN, red for the internet, orange for DMZ, and blue for wireless clients. OPNsense OPNsense is an easy-to-use open source firewall based on FreeBSD 10.1 to ensure long-term support. Obviously enough, the project’s name is derived from the words 'open' and 'sense', standing for: ‘Open source makes sense.’ IPFire IPFire is a Linux firewall distro focusing on user-friendliness and easy setup without compromising your security, supporting some useful features such as intrusion detection. IPFire takes a serious approach to security by using an SPI (Stateful Packet Inspection) Firewall built on top of netfilter.  pfSense Like OPNsense, pfSense is based on FreeBSD and designed s…

Linux Networking Commands

Every computer is connected to some other computer through a network whether internally or externally to exchange some information. This network can be small as some computers connected in your home or office, or can be large or complicated as in large University or the entire Internet. Maintaining a system's network is a task of System/Network administrator. Their task includes network configuration and troubleshooting. Here is a list of Networking and Troubleshooting commands: ifconfigDisplay and manipulate route and network interfaces.ipIt is a replacement of ifconfig command.tracerouteNetwork troubleshooting utility.tracepathSimilar to traceroute but doesn't require root privileges.pingTo check connectivity between two nodes.netstatDisplay connection information.ssIt is a replacement of netstat.digQuery DNS related information.nslookupFind DNS related query.routeShows and manipulate IP routing table.hostPerforms DNS lookups.arpView or add contents of the kernel's ARP t…

Other useful UNIX commands " history "

history Command The C shell keeps an ordered list of all the commands that you have entered. Each command is given a number according to the order it was entered. % history (show command history list) If you are using the C shell, you can use the exclamation character (!) to recall commands easily. % !! (recall last command) % !-3 (recall third most recent command) % !5 (recall 5th command in list) % !grep (recall last command starting with grep) You can increase the size of the history buffer by typing % set history=100