[New employee studying] Let's summarize the Linux commands that are likely to be used for network construction from now on

This is Marlboro Double Burst, a new employee who is studying. I'm sad that the number of convenience stores I'm dealing with recently is decreasing, but I decided to leave an article because I wanted to keep it in shape. I bought two boxes of Double Burst 5 at Lawson yesterday. I smoke 1 to 5 cigarettes a day, so I think I can keep it for a while. When it's cut, I have no choice but to smoke purple, but I can't find this either ... I'm lonely.

Now, let's summarize the Linux commands that I personally might use for network construction. I'm an amateur, so I'll write commands that I'm likely to use. I would like to write in detail the results of actually using it later. I think it will be close to a personal summary, but if you would like, please comment on advice.

I will collect it anyway

Server time

data System clock date and time display / sbin / hwclock Hardware clock date and time display

su-// No environment takeover, administrator authority Password: ntpdate ntp_server </ em> // System clock synchronization with NTP server hwclock --systohc // System clock reference hardware clock synchronization

ntpd // Check the operating status of clock synchronization

Routing table

/ sbin / route // Routing table display netstat -r // Routing table display

Destination: Target network host Gateway: IP address of the gateway device Genmask: Subnet mask of the target network Flags: U route valid G gateway used H target is host R dynamic route to be recovered _D_Dynamic setting _M_Change _A_addconf setting _C_Cache entry _! _ Route to reject Metric: Target distance (hop count) Ref: Number of route references Use: Number of route references (number of route -F, -C) Iface: Interface to use

IP / sbin / ifconfig eth0 // interfaceName eth0 information confirmation su-Administrator authority // ifconfig interfaceName [inet ipadress] [netmask mask] // ipAdress subnetMask settings ifconfig interfaceName up // Interface activation ifconfig interfaceName down // Interface invalidation

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