most secure linux server distro

Reprint: http://www.cnblogs.com/jifeng/archive/2011/06/25/2090118.htmlModify the/etc/ssh/sshd_config file to find Clientaliveinterval 0 and Clientalivecountmax 3 and remove the annotation symbol ("#")Change the corresponding 0 of the clientaliveinterval to 60,CLIENTALIVEINTERVAL Specifies the time interval for server-side request messages to clients, which is 0 by default and not sent.Clientaliveinterval 60 indicates that it is sent once per minute, a

Article Title: Build a Secure SSH server in the Centos5 environment. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. In fact, there are many vulnerabilities in the original SSH

General modifications two places can solve this annoying problem1. Echo $TMOUTIf blank is displayed, it means that there is no setting, equal to using the default value of 0, and should normally not time out. If it is greater than 0, you can set it to 0 in a file such as/etc/profile.2, modify the/etc/ssh/sshd_config file , the Clientaliveinterval 0 and Clientalivecountmax 3 of the annotation symbols removed, Change the clientaliveinterval corresponding 0 to 60,clientaliveinterval specifies the t

Article Title: Use vftpd to set up a virtual Secure FTP server. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. We all know that the password verification on the FTP

How to build a secure FTP service on Linux using vsftpd? FTP (file transfer protocol) is one of the widely used services on the Internet. It is mainly used to transmit files from one host to another. FTP itself was not designed as a security protocol. Because of this, typical FTP services are vulnerable to common attacks such as man-in-the-middle attacks and brute-force attacks. Many

How to build a secure FTP service on Linux using vsftpd? FTP (file transfer protocol) is one of the widely used services on the Internet. It is mainly used to transmit files from one host to another. FTP itself was not designed as a security protocol. Because of this, typical FTP services are vulnerable to common attacks such as man-in-the-middle attacks and brute-force attacks. Many

Article Title: Linux: Use vsftpd to build a secure FTP service (figure ). Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. The security risks of the FTP protocol cannot be the reason

SSH is a security protocol based on application layer and Transport layer, and SSH protocol can prevent information leakage between computer communication.The SSH protocol commonly used under Linux is SSH command, and SCP command, there is no security key for SSH, SCP. is password-based security authentication, the use of remote commands to enter a password, although this is a secure connection, but also th

Article Title: How to Implement the Linux firewall to make remote office more secure. Linux is a technology channel of the IT lab in China. It includes desktop applications, Linux system management, kernel research, embedded systems, open source and other basic categories. Currently, Using VPN to achieve remote office

A reasonable use of the shell History command logging functionUnder Linux, the History command allows you to view all of the user's historical operations records, while the shell command action record is saved by default in the. bash_history file in the user directory, which allows you to query the execution history of the shell command. Help operations personnel to conduct system audits and troubleshooting, while the

account does not have a password set. This way, every user who knows the server's port number on the Internet, or all the logged-in users on this computer, can manipulate the database as Superuser. This should be said to be a very large security loophole. The following step-by-step describes the installation process of Sybase ASE for Linux, as well as the security configuration and more secure systems that

1.VNC remote connection to Linux graphical desktop2.SSH Secure Shell Client connection to Linux terminal3. Set FTP and Linux transfer files1.VNC remote connection to Linux graphical desktopRun under CentOS:Yum-y instll VNC Vnc-serverAfter running, rpm-q Vncserver: Package Vn

A reasonable use of the shell History command logging functionUnder Linux, the History command allows you to view all of the user's historical operations records, while the shell command action record is saved by default in the. bash_history file in the user directory, which allows you to query the execution history of the shell command. Help operations personnel to conduct system audits and troubleshooting, while the

It is particularly worth mentioning that there are many things worth learning about in Linux. Here we will mainly introduce the Linux system, including the Linux system. Recently, a server is getting overwhelmed (Millions of traffic), and the response interval is getting longer and longer. After explaining the symptoms

Article Title: design a Secure Linux network. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. As a system, its security should be carefully considered when planning the network topo

1. Introduction By studying the access control model of the secure operating system, this paper organically combines the cryptographic service with the high-level access control mechanism by combining the security standards at home and abroad with the existing advanced technologies, form a practical operating system suitable for various security levels. Based on the Linux operating system, the security of

Keep in mind that these seven points will make your Linux server more secure Figure 1: The service in operation. Services required for installation If you're going to run a server, you might think, "I Have a 40GB SSD (SSD) storage System from Linode, so I can install any service I want to install." "Yes,

interfaces, ports, protocols, or combinations of these attributes. These rules also specify the action (accept, reject, or resend) to be taken during matching ). After the rules are set, perform a detailed inspection on the firewall to ensure that no vulnerabilities exist. A secure firewall is the first line of defense against common DDoS attacks. Use OpenSSH to process network transactions Data security transmitted over the network is an important i

Today, many small and medium users are constantly updating or upgrading their networks due to business growth, which leads to a large difference in their user environments. The entire network system platform is uneven, and most servers use Linux systems, the PC end uses the Windows system. Therefore, in enterprise applications, Linux/Unix and Windows operating systems coexist to form a heterogeneous network

protect the communication process, the following is a brief introduction.I still use the Tiger VNC under Win XP to do the client, in fact, for Linux is also possible (more simple).1, under the session configuration host name for the server ip,port SSH Port 22;2, in connection-"ssh-" Tunnels configuration source port for the VNC server port number 5902,destinatio