April 14th, 2008
by Sherill
in
Developer Tools |
No Comments →
haacked.com
If you need to implement file transfer capability and you are a software developer, you will need to search for the components to do the job. You have built-in support for FTPS in a .NET Framework. However, functionality of this class does not include any support for SFTP or SSH.
In VCL, you will have a selection of free libraries and components which provide FTP functionality. You can get FTPS for free when you add OpenSSL to them. You can use one of the commercially available libraries for FTPS and SSL support if you do not want to deal with OpenSSL DLLs.
April 10th, 2008
by Sherill
in
FTP Comparison |
No Comments →
www.cdfreaks.com
In choosing the right FTP, the answer would depend on your goals and requirements. Generally speaking, SFTP is superior to FTPS. It would be a good idea to implement both protocols; however, they are different in terms of their concepts and supported commands.
If you have a server that have FTP support but does not have SFTP/SSH clients or it needs to be accessed from personal devices such as PDAs, smartphones, etc), it is a good idea to use FTPS. However, if you are building a custom security solution, the better option is SFTP. As for the side of the clients, the requirements depend on the server that you plan to connect to.
April 8th, 2008
by Sherill
in
FTP Comparison |
No Comments →
.gif)
msdn2.microsoft.com
X.509 certificates include certain information about the certificate owner and the public key. This information will allow the other side to verify the authenticity of the certificate owner and the integrity of the certificate itself. The verification can be done by humans, with the help of a computer. X.509 certificate has a private key, which is normally stored separately from the certificate for security reasons.
Since the associated key is stored separately, the SSH key contains a public key only. It does not contain any information about the key owner. Neither does it contain information that will let one reliably validate the authenticity and integrity.
April 4th, 2008
by Sherill
in
FTP Comparison |
No Comments →
www.bestnovicetipscom
SFTP is a binary protocol, and the latest version is standardized in RFC 4253. All the requests of commands are already packed to binary messages and sent over to the server, which is replying with binary reply packets. In its later versions, SFTP has been extended to provide not just the download/upload operations, but some file-system operations such as symbolic link creation and file lock etc.
Both SFTP and FTPS use asymmetric algorithm as a combination (RSA, DSA), key-exchange algorithm, and symmetric algorithm (DES/3DES, AES, Twhofish etc). FTPS (or SSL/TLS protocol under FTP) uses certificates of X.509 while SFTP (SSH protocol) uses keys of SSH for authentication.
April 2nd, 2008
by Sherill
in
FTP History |
No Comments →
www.vintage.org
Another security standard has grown in UNIX systems. It’s the SSH family of protocols. Securing remote shell access to UNIX systems is the primary function of SSH. Later, SSH was already extended with file transfer protocol – SCP (in SSH 1) SFTP (in SSH 2). The version 1 of the SSH protocol is already insecure, outdated, and generally not recommended for use. After a while, SCP is not used anymore and SFTP already gained popularity everyday. The abbreviation of “SFTP” is often mistakenly used to relate to a Secure FTP. However, these people often mean “FTPS” – which is the real secured FTP.
March 30th, 2008
by Sherill
in
FTP History |
No Comments →
www.juiced.gs
FTP protocol or file transfer over the network took root in 1980. This is when the first RFC for FTP protocol was ever published. The functions of FTP include uploading, downloading and deleting files, creating and deleting directories, and reading directory contents. FTP has certain disadvantages which makes it harder to use although it is very popular. Major drawbacks would be the lack of uniform format for directory listing – though not supported by some servers; this problem was partially solved by introducing MLST command. Another disadvantage would be the presence of secondary connection (DATA connection). FTPS is the secured version of FTP.
March 28th, 2008
by Sherill
in
FTP Client |
No Comments →
pagesperso-orange.fr
When studying for the CCNA exam, the first thing that you should do is to memorize a list of port numbers and protocols that run on those ports. If you’re an experienced networker, you would know these protocols – SMTP, FTP, DHCP, and DNS. But maybe you have not heard of one protocol which is vital for working with Cisco switches and routers, and in CCNA exam studies. That’s TFTP – Trivial File Transfer Protocol.
TFTP is a non-secure relative of FTP. There are no authentication scheme and no passwords. It is used in Cisco to perform IOS upgrades and save configs to TFTP Server. Cisco routers can serve as TFTP themselves, or you can use a workstation.
March 25th, 2008
by Frannie
in
General |
No Comments →
The New York Times wrote a story last week about an alarm about the amount of data flowing through the Internet. It has been observed that the bandwidth is taking a major hit these days… there’s just too much data being passed to and fro. While the story focused on the video such as YouTube, it’s also true that the P2P traffic - much as ISPs may hate to admit it - makes up a very significant percentage of network traffic.
The P4P protocol aims to reduce all the traffic by using network topology data to select peers intelligently, instead of a random, thus increasingly routing efficiency. It is obvious: the more routers or hops traffic has to take, the less efficient it becomes.
March 20th, 2008
by Frannie
in
General |
No Comments →
Comcast and Bit Torrent Inc. have announced that they’ll work together to ensure the popular file-sharing format that would work more smoothly over Comcast’s network. This is great news and will surely make a lot of bottlenecks easier to work with. The cable company has been embroiled in a public controversy over its policy of throttling Bit Torrent files even by the means of shaping its network traffic.
According to The Wall Street Journal, The Comcast will switch from hamstringing to a certain file formats just to slow the traffic for those users who consume the most bandwidth. CEO Doug Walker told us earlier this month that he wanted to be partners with Comcast (Tony Werner).
March 15th, 2008
by Frannie
in
General |
No Comments →
Searching for a FTP program? While there are truly thousands of programs available, let me make your search a little easier. Try out Mocha FTP right now. That’s right, The Mocha soft has now made their Mocha FTP Server freeware for everyone to enjoy.
This program supports standard FTP commands. So basically everything you would ever need for your FTP program, it’s there. Moreso, Mocha Server gives a very easy way to copy files to/from a PDA running Windows Mobile or Pocket PC 200x it very much supports the standard File Transfer Protocol features found in the most web browsers and FTP client applications.