Keep in mind that these seven points make your Linux server more secure
I run several Linux servers. I have one at home, serving as a file server, and three active servers used as my Site Server, email server, and cloud storage
Which FTP server is the safest? In Unix and Linux, vsftpdVery Secure FTP Daemon is first introduced, which is a very Secure FTP server ). As the name implies, vsftpd is a very secure file transfer protocol service. The starting point of vsftpd design is security. Some large
As PHP becomes more popular, Linux vps/servers are used more and more, and Linux security issues need to be enhanced, if you install denyhosts and set up email reminders, you may be subject to several letters each day denyhosts The reporting will come to break the SSH password IP join/etc/hosts.deny.
There are two types of Linux ssh logins:
1, the use of password Authentication login
Typically, a VPS or server
|+-SSL.CRT//SSL Certificate|+-ssl.key//ssl Key|+-inc|||+-csmtp.php//SMTP Email class for FTP password sending and resetting|+-sharememory.php//Shared memory operation class|+-user.php//user management, file Rights Management, IP access control|+-logs//log files|+-reference//reference documentation|+-web|||+-wwwroot//ftp Web Management Web site|+-cwebserver.php//ftp Built-in HTTP server|+-cftpserver.php//FTP
We installed the MySQL server, set up the root user password of MySQL, and then directly began to use, in fact, such a MySQL server there are still some unsafe factors, this article demonstrates with the command mysql_secure_ Installation to safely initialize our MySQL server.[[email protected] ~]#/usr/bin/mysql_secure
Use rssh to create a secure file server
At present, the company needs a Linux server as a file server, but based on security considerations, I do not want to use ftp or samba, but must allow users to upload files. What should we do?
Because it is a Linux server, you can use
Tags: frequency stat Blog Pre Security + + Author tool dropIntroduction Enterprise Shell interview question: Master please detour! Enterprise Practical Problems 6 : developing shell scripts to solve DOS secure Linux server production casesaccording toWeblog or the number of network connections, monitor when aIPnumber of concurrent connections or short -termPVreach -, that is, call the firewall command to se
Four methods to make your Linux server more secure
I run several Linux servers. One file server at home and three real-time servers are used for site, email, and cloud storage respectively. Although I don't have to worry about the security of my home server because it doesn'
negative effects may occur:
(1) Use MTA network bandwidth
(2) because the Internet is defined as a blacklist, many normal emails cannot be sent.
(3) the IP address may be blocked by the upper-level carrier, and other adverse factors
Therefore, for the sake of security, the user must provide the account and password for authorization before sending an email using MUa, so that the MTA can only provide relay for these authorized accounts, you can forwar
. When you reach any limit, your Gmail account will be temporarily locked for one day. In short, the SMTP server of Gmail is very good for your personal use, but it is not suitable for Commercial batch mail.
Now, it's time to show you how to use Gmail's SMTP server in Linux.
Google Gmail SMTP server settings
If you want to send an
Programm lumisoft Mail Server is a MailServer.General:
SMTP/POP3/IMAP4/WebMail
IP Access Filtering
User mailbox size limit
Supports XML or MSSQL Databases
Nice GUI for administation
Well commented source code encoded DED
SMTP:
All basic SMTP features
Supports multiple domains
Supports multiple e-address for one mailbox
Supports aliases (mailing lists). Supports public and private (needs a
1. Zabbix IntroductionOpen source web-based software, open source monitoring system status can also monitor network equipment.Unlike Nagios, Zabbix will keep the acquired data in the database, so Zabbix needs to have database supportZabbix can also automatically discover hosts and network devicesSupport Email and SMS alertsZabbix Most configurations can be done in the Web interface configurationOfficial website http://www.zabbix.com/2. Installing Zabb
prohibits password login. For the management of multiple servers, I am a direct replacement of the file, so simple and maintain the persistence.// Local SCP -P [Port] sshd_config [email protected]:/your/home///serversudoCP ~/sshd_config/etc/ssh/sshd_config4. Iptables settingsudo 1 22000-J ACCEPTsudo service iptables Save5. Restart the sshd service, test loginsudo service sshd restartSSH [email protected]-
error message, the message "error occurred while logging on to the email server, incorrect user name" is displayed ". However, the user name and password are correct When configuring the client.
Is this user name blacklisted on the email server? I created another email acco
configuration file.
By default, all library functions are installed in the "/usr/local/lib" directory, however, the library functions used by Sendmail are in the "/usr/lib" directory, so some modifications are required. Modify the default path before running the configure script. Open the configure file and find the following line:
Ac_default_prefix =/usr/local
Changed:
Ac_default_prefix =/usr
Compile:
# Make
Installation:
# Make install
The SASL library has been installed, so it is important t
If you ask which FTP server is the safest? Then in Unix and Linux, the most important thing is VSFTPD (Very secure FTP Daemon, very secure FTP server). As the name suggests, VSFTPD is a very secure File Transfer Protocol service. VSFTPD design is based on security, such as R
In today's society, network security is becoming more and more important, especially when we send and receive emails. How can I set up a mail server. We use Red Hat Linux 9.0 as an example. The Linux Mail server suites available in Linux include Sendmail and Qmail. I hope you will learn how to set up a Linux email server
Mail Transport Agent (MTA) for Mail users from the internet outside the local network, only Authenticated Users are allowed to perform remote forwarding. This not only effectively avoids the use of the email sending proxy server for spam senders, but also facilitates employees who work on a business trip or at home. If SMTP authentication is not adopted, it is feasible to set up an Internet-Oriented Web Ma
and immediately switches over to take over the service. This process is fully automated and completed in a short time, with little impact on the business. Because shared storage devices are used, mail data is always synchronized in real time.
Network Topology:
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Advantages and disadvantages: This solution is the most stand
The instructor asked me to set up an email server and searched for some tutorials online, but all of them were wrong. After three and a half days of hard work, I finally completed the setup and thanked the seniors who wrote the tutorials, the following is my summary. (Authmysql. so and athlib connect to the mysql configuration file with a space after the user name ten millions of attention, I am not a shack
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