linux practice exam

remote Linux servers? Upload files and download files via what?A.ssh XsheelB.SCP some software can upload downloaded files, no use.9.What is the main use of the/mnt directory? What does the/root directory have to do with the root user? /What is the connection between the root directory and the/boot directory? A./MNT mount directory for external devicesB./root is the root user directoryC./boot10. What happens when the RM-RF * is executed on one day? P

. NET Framework of Mono, however, for simplicity, I use Anyexec to run this program (for Anyexec, see: Don't install Mono, your. NET program can still run on Linux! ）。1, put the MyDeamon.exe into the Anyexec app folder;2, the "any" this program is copied to Mydeamon;3, run: witness the magical time is up! Please enter on the Linux control Terminal:./mydaemon, Haha, why didn't you react? In fact, is not unre

Linux and Security Practice IIBasic kernel Modules20135238 Ching1.Understanding Module PrinciplesLinux modules are a collection of functions and data types that can be compiled as standalone programs. The module mechanism is provided because Linux itself is a single core. Single core because all content is integrated and efficient, but scalability and maintainabi

It's time for a big holy lecture. I believe that the network is essential for every operator and developer to get in touch today, we're talking about the three virtual machines in VM virtual machines divide two LAN to realize the interconnection of different local area networks that is, the AC through the B host is communicating with each other instead of through the network. Here are the requirements and topicsRouting Configuration Practices:01. Network Information for the server needs to be co

=============================================================================Linux Command Review and Practice:----------------------------------------------------------------------------- Linux command format:command [-Options] [Parameter1] [Parameter2] ... Command option Parameters for example:ls/Command +parameter ls-a COMMAND +options Note:　　　　1. If there ar

I want to practice the php program and environment configuration on linux. which operating system is the best? I want to practice the php program and environment configuration on linux. which operating system is the best? Some say that I used to use a red hat. I used to have nothing in ubuntu. c ++ is required for comp

Execute:Udhcpd-fs/etc/udhcpd.confThen the error said in the directory is missing a file, directly with touch name creation continue to execute the above command!Next: The terminal will print out the UDHCPD service has started: and then it looks like it's not responding ...In fact, you have been successful-using your mobile phone or computer to connect your WiFi hotspot, the allocation of IP information will be printed.Finally, open my smart home control system, through the mobile phone and comp

Title: Implement two programs mysignal, Mycontrl,mycontrl to mysignal send SIGINT signal, control mysignal whether the screen print "Hello" string.//Capturing signals#include#include#includestring.h>#include#include#includeintflag=0;voidCatch_sig (intSign ) { Switch(sign) { CaseSigint:flag=flag==0?1:0; Break; CaseSigalrm:exit (0); }}intMysignal (intSignvoid(*func) (int)){ structsigaction act,oact; Act.sa_handler=func; Sigemptyset (act.sa_mask); Act.sa_flags=0; returnSigaction (sign,act,o

%d\n", Resid); return 0;}. Suffixes:.c. OCC=gccSRCS1=CREATESHM.CSRCS2=WRA.CSRCS3=RDB.CSRCS4=rmshm.cobjs1=$ (srcs1:.c=. O) OBJS2=$ (srcs2:.c=. O) OBJS3=$ (srcs3:.c=. O) OBJS4=$ (srcs4:.c=. O) EXEC1=firstsEXEC2=nextsEXEC3=lastsEXEC4=lasts2start:$ (OBJS1) $ (OBJS2) $ (OBJS3) $ (OBJS4) $ (CC)-o $ (EXEC1) $ (OBJS1) $ (CC)-o $ (EXEC2) $ (OBJS2) $ (CC)-o $ (EXEC3) $ (OBJS3) $ (CC)-o $ (EXEC4) $ (OBJS4) @echo"^_^-----OK-----^_^". C.O: $ (CC)-WALL-G-o [email protected]-C $Clean:rm-F $ (OBJS1) RM-F $ (OBJ

Compile and build a new kernel the principle of practiceLinux modules are a collection of functions and data types that can be compiled as standalone programs. The module mechanism is provided because Linux itself is a single core. Single core because all content is integrated and efficient, but scalability and maintainability is relatively poor, the module mechanism can compensate for this flaw.Linux modules can be loaded into the kernel space by sta

Linux C Programming Practice (2) -File System Programming 1. Linux File System Linux supports multiple file systems, such as ext, ext2, minix, iso9660, msdos, fat, vfat, and nfs. On the upper layer of these file systems, Linux provides virtual File Systems (VFS) are used to

Today, the best way to learn about Linux is to use the common Linux technology-Linux technology and application information. For more information, see the following. Do you want to quickly master Linux skills? Think, okay. I'll tell you a way. Don't worry, you don't have to pay for me. Let's talk about the results I ha

Article Title: Practices and discussions on Linux Embedded Systems. 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. 　　 1. Practical Purpose 　　 Transplant the KERNEL of KERNEL 2.6 to a mature embedded hardware platform;

byte at a time, so it takes a lot of time. Therefore, this solution is not very practical. LVM Method In Linux, Logical Volume ManagerLVM) can also be used to create snapshots, which saves a lot of time than the previous disk file method. This method means that your VM uses the LVM logical volume as the storage backend and compares it with the Virtual Disk File. Because of this logical volume, you need to create a snapshot next. This snapshot is a ty

1,linux the distribution of each release, the relationship between, and the difference betweenThere are mainly the following distributionsDebian-based, mainly Debian, Ubuntu, mintDebian is a free distribution that is maintained by community organizations and is fully compliant with the GNU code. Using the Dpkg package management methodUbuntu is a Debian-based Linux system for desktop untable two releasesMin

Job target:Linux OPS Practice-September 5, 2015 Course Assignment (practice) ScheduleWorking Environment: CentOS 6.7/7 x86_64First, homework (exercise) content:1. Summarize the detailed usage method of the task plan (at, crontab) on Linux system;2, every Monday to Saturday 3:20 A.M., run the CP command to archive the/etc/directory, storage location is/BACKUPS/ETC

signal Volume API synthesis PracticePractice 1: Encapsulate the PV primitive Union mysemun{int val; Value for setval//struct semid_ds *buf; Buffer for Ipc_stat, ipc_set//unsigned short *array; Array for GETALL, setall//struct seminfo *__buf; Buffer for Ipc_info (linux-specific)//};//encapsulates V operation int sem_v (int semid) {struct Sembuf buf = {0,+1,0}; Return Semop (semid,buf,1);} Package P operation int sem_p (int semid) {struct Sem

The main purpose of the script is to practice capturing signals in a Linux bash script, by practicing the use of functions, and by terminating a running program, subsequent processing of files opened by the program, and so on!Scripting Features:Ping IP within a network segment, detect which IP is online, which IP is not onlinecommand to Practice:1, MktempUsage: #

The main purpose of the script is to practice capturing signals in a Linux bash script, by practicing the use of functions, and by terminating a running program, subsequent processing of files opened by the program, and so on!Scripting Features:Ping IP within a network segment, detect which IP is online, which IP is not onlinecommand to Practice:1, MktempUsage: #

Hands-on practice of Linux VLAN-playing with OpenStack (13) every five minutes) This section describes how to implement and configure the following VLAN network in the experiment environment. Configure VLAN Edit/etc/network/interfaces and configure eth0.10, brvlan10, eth0.20, and brvlan20.Vmdiff is used to demonstrate modifications to/etc/network/interfaces. Restart the host machine, ifconfig Network In