patching linux servers

10 security configuration practices of Linux servers and PHP are widely used in various Web development scenarios. When the script configuration on the server is incorrect, various problems may occur. Today, most Web servers run in Linux environments (such as Ubuntu and Debian ). This article illustrates the top ten PH

1738B1810B|23-0310:27:14 2937B2610B|23-0310:27:15 2319B2232B|23-0310:27:16 2738B2508B|23-0310:27:17 18. collectl Collectl reports system statistics in a format similar to dstat. Like dstat, collectl also collects statistics about different system resources, such as processors, memory, and networks. A simple example shows how to use collectl to report network usage/bandwidth. $collectl-sn-oT-i0.5 waitingfor0.5secondsample... # #TimeKBInPktInKBOutPktOut 10:32:0140584366 1

NFS is a Web FileSystem network file system developed by Sun that is equivalent to a win mapped network drive that can "mount" a directory on an NFS server to a local directory on a local machine.The NFS configuration file is:/etc/exports [' eksp2rt] output, exportVi/etc/exports:/home/dir_to_exported clients_nfs (rw, sync and other sharing options)In fact, the configuration and use of NFS shares is the same as the idea and procedure of using smbclient or mount to make

rsync synchronization, This just solves the problem of real-time synchronization data.Specific people can refer to http://www.ibm.com/developerworks/cn/linux/l-ubuntu-inotify/index.html to learn. Next we start with the installation, configuration, and testing of rsync and inotify. The following is the structure of 2 servers, host name, IP, status, kernel, number of digits, synchronized directory, and 2

1, Linux server is actually able to clone the virtual machine, so that more than a new installation more convenient, you can operate on two convenient, cloning steps are as follows:Open the virtual machine---Right-click-Manage = = Clone: To the following interface:Clone the current state of the virtual machine:Create a complete clone to facilitate later operation:3. Show cloning Progress:4. Cloning is complete at this time:5. After cloning, you need t

IBM builds a three-dimensional virtual Forbidden City on the Internet to support and use Linux servers-general Linux technology-Linux technology and application information. The following is a detailed description. Linux also has a first-line game released at the same time.

As we all know, network security is a very important topic, and servers are the most critical link in network security. Linux is considered to be a safer Internet server. As an open-source operating system, once a security vulnerability is found in Linux, volunteers from around the world on the Internet will actively fix it. However, system administrators often c

Solution to a large number of zombie processes on Linux servers How do I view zombie processes in Linux and how many zombie processes are counted? # Ps-ef | grep defunct Or find a process in the Z state. Z indicates zombie process, which means a zombie process. In addition, when you use the top command to view the result, the column is S. If the status is Z,

\u4e00\u5143\u5927\u9910\n\u628a\u767e\u5ea6\u8bbe\u4e3a\u4e3b\u9875\u5173\u4e8e\u767e\ U5ea6aboutnBsp;baidu\n\xa92016baidu\u4f7f\u7528\u767e\u5ea6\u524d\u5fc5\u8bfb\u610f\u89c1\u53cd\ U9988\u4eacicp\u8bc1030173\u53f7\n\u4eac\u516c\u7f51\u5b89\u590711000002000001\u53f7 'as above, has successfully obtained the page data of Baidu website, indicating that the test environment has been successfully built, can be interactive testing. 6. Interactive testing via Selenium+firefoxFor example:importseleni

[Basic] preparations for batch deployment packages for LINUX servers under RHEL6: xinetd, tftp-server, dhcp, httpd, system-config-kickstart, syslinux, nfs test environment: Local Address: 192.168.46.98 local Gateway: 192.168.46.254 configure DHCP server: Sample: subnet 192.168.46.0 netmask 255.255.255.0 {range 192.168.46.100 192.168.46.105; option routers 192.168.46.254; default-lease-time 600; max-lease-ti

Common commands for transferring files between Linux servers using the scpscp command: 1. download the directory on the server to the specified directory on the currently logged-on server: scp-P port number-r user name @ server IP:/directory name local directory name use instance: scp... common commands for transferring files between Linux

Two linux servers are configured with ftp for image uploading. ftp linux image uploading Now I have two servers. one is the php website server for uploading images, and the other is a server similar to the image server. the vsftp server can be connected to obtain the directory by using ftp software, both are configure

How to disable Linux host from being pinged by other servers How does one disable Linux Hosts from being pinged by other servers (without affecting the ping from the local host to other servers )? Method:Ping prohibited: echo 1>/proc/sys/net/ipv4/icmp_echo_ignore_allPing a