GPG, the GNU Privacy Guard, is a non-commercial version of cryptographic tool PGP (pretty), which is used to encrypt and authenticate emails, files, and other data to ensure the reliability and authenticity of communication data. This article will introduce the GPG technology and related tools, designed to help online surfers "sincere" communication. First, PGP overview before introducing GPG, let's take a look at the basic principles and application rules of PGP. Like many encryption methods, PGP uses double keys to ...
1. First we want to see if the current Linux system has GNUPG software, for Red Hat linux7.0 version will automatically install the software, we enter the following command to see if the machine is installed Linux$rpm-qa│grep GnuPG Gnupg-1.0.4-11 from above can be seen that the package has been installed, if not installed, please follow the instructor's instructions to install 2. After installing the GNUPG package, what we need to do is to generate a pair of key linu ...
Although Linux is more secure than Windows, some simple security configurations are necessary. There are a lot of tools on the Internet to scan your admin password with a dictionary, we can create some trouble and increase the possibility of being deciphered. Take a look at the entry level security configuration. First: Remote management port modifies SSH's landing port, and the default port is 22. Scan Dictionary Poor lift password They all start with the default. If you change the port to a 4-digit number, it greatly increases their difficulty and time. Edit SSH configuration with vi command ...
Djigzo Email Encryption Gateway is a centrally managed http://www.aliyun.com/zixun/aggregation/12489.html "> mail server for gateway level encryption/ Decrypted incoming/Outgoing e-mail. Djigzo currently supports two types of encryption standards: S/MIME and PDF encryption. The built-in data leakage protection (DLP) module prevents certain information from being e-mailed. DLP ...
CryptoHeaven is an email integrated tool, similar to the http://www.aliyun.com/zixun/aggregation/14454.html we often use ">exchange and homemade foxmail, It also incorporates information transfer tools such as OICQ. CryptoHeaven software is developed to accelerate wide u ...
Cerberus Helpdesk is a mailbox-sharing email application. It is characterized by the acquisition and recovery of information, the categorization of messages and the tools of virtual communities. Cerberus Helpdesk 5.6.3 Update log: 1. Maintenance Updates 12 community feedback improvements. 2. The storage system no longer leaves the deleted clutter attachment. 3. The Debug page can export an XML file that describes the behavior of the virtual service for all events. 4. A new X can record downloaded mailbox messages. 5. Ann ...
Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology Hall Although the Linux system is higher than Windows security, However, some simple security configuration is also necessary. There are a lot of tools on the Internet to scan your admin password with a dictionary, we can create some trouble and increase the possibility of being deciphered. Look at the entry level security configuration ...
SMTP server Code of Practice: Incoming messages. Check the address of the message. If the address of the message is a local address, save the message for retrieval. If it is a remote address, forward the message. The SMTP server features the same as the packet router, except that the SMTP service is dedicated to mail. Most SMTP servers can store and forward messages as needed. The SMTP server has security requirements on two different tasks: Protect the server from being compromised. The server must be equipped with protective armor to prevent external attacks, if the external offensive success will make the attackers unauthorized ...
In most Linux distributions are selected Washingtonuniversity FTP, it is a well-known FTP server software, generally referred to as wu-ftp. It http://www.aliyun.com/zixun/aggregation/17547.html "> powerful and can run well on many UNIX operating systems, such as IBM AIX, FreeBSD, HP-UX, NeXTstep, Dyn ...
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