Tag: Terminal

Cisco Catalyst - Trunk Configuration

Here are steps to set port to trunk mode:

1. After connected to switch with console
2. Enter configuration mode
Switch> enable
Switch# Configure terminal

3. Clear the port to default
Switch(config)# default interface gigabitEthernet 1/0/24

4. Set the port to trunk
Switch(config)# interface gigabitEthernet 1/0/24
Switch(config-if)# switchport mode trunk
Switch(config-if)# switchport trunk native vlan 1
Switch(config-if)# exit

5. Save settings
Switch# copy running-config startup-config

Posted on by kuan

Password Recovery for Cisco Catalyst Switches

Steps to reset password for Cisco Catalyst Switches:

1. Connect PC with console cable
2. Unplug the power cable to the switch
3. Reconnect the power to the switch. Press and hold the Mode button while System LED is flashing green. After System LED turns amber and then solid green, release the Mode button.

If process followed correctly, the following message should be displayed:

flash_init
load_helper
boot

4.Enter these commands into the switch

Switch: flash_init
Switch: load_helper
Switch: dir flash:
Switch: rename flash:config.text flash:config.text.old
Switch: boot

5. Once the switch boot, answer NO to “Would you like to enter initial/system configuration dialog? [yes/no]:

6. Get into the privilege prompt
Switch> enable

7. Get into global configuration
Switch# conf t
Switch(config)# enable secret y0urPa$$word
Or,
Switch(config)# username admin privilege 15 secret y0urPa$$word

8. Save config
Switch(config)# exit
Switch# copy run start
Switch# reload

Posted on by kuan

OSX install pkg in terminal


cd /
sudo mkdir /Volumes/mnt
sudo mount_afp afp://server/mnt /Volumes/mnt
sudo cp -R /Volumes/mnt/software.pkg /folder
sudo installer -pkg /folder/software.pkg -target / 
sudo shutdown -r now

* If you get permission denied while installing/coying the pkg from server, it is worth to check permission set on the pkg file.

Posted on by kuan

Crontab - Force Shutdown in OSX

sudo crontab -e

Press i (insert text in vim)
30 19 * * 5 /sbin/shutdown -h now

Press esc (to exit editing)
Press shift+z shift+z (Writes changes and quit vim)

Time format in Crontab:
* * * * * command to execute
│ │ │ │ │
│ │ │ │ └─── day of week (0 - 6) (0 to 6 are Sunday to Saturday, or use names; 7 is Sunday, the same as 0)
│ │ │ └──────── month (1 - 12)
│ │ └───────────── day of month (1 - 31)
│ └────────────────── hour (0 - 23)
└─────────────────────── min (0 - 59)

Posted on by kuan

OSX Terminal Commands

Caching related:
sudo serveradmin stop caching
sudo serveradmin start caching
sudo serveradmin status caching


tail -F /Private/var/log/system.log
tail -F /Library/Server/Caching/Logs/Debug.log

example:
grep 'Since server start:' /Library/Server/Caching/Logs/Debug.log
grep 'B from cache' /Library/Server/Caching/Logs/Debug.log
egrep 'Since server start|B from cache' /Library/Server/Caching/Logs/Debug.log
grep '2015-09' /Library/Server/Caching/Logs/Debug.log | grep 'Since server start|B from cache'
grep -J 'MB downloaded' /Library/Server/Caching/Logs/Debug* > fromInternet.txt
grep -J 'MB from cache' /Library/Server/Caching/Logs/Debug* > fromCached.txt
grep -J 'Since server start' /Library/Server/Caching/Logs/Debug* > SinceServerStart.txt

SSH, Mapped Drive & Copy stuffs:
ssh computername
cd /
sudo mkdir scripts
sudo mkdir /Volumes/mnt
sudo mount_afp afp://osxserver.domain.com/mnt /Volumes/mnt
sudo cp /Volumes/mnt/homedrive.sh /scripts
sudo cp -R /Volumes/mnt/MappedDrive.app /Applications
sudo cp -R /Volumes/mnt/StudentShared.app /Applications
sudo cp -R /Volumes/mnt/Microsoft\ Remote\ Desktop.app /Applications
sudo umount /Volumes/mnt

Posted on by kuan