# Connecting to a Linux server by SSH Client
* After successfully initialized, the information of vServer will be displayed on Portal GreenNode.
* If the Status section is Active, vServer is ready to use
* Check your email, for vServer connection information
*Note: This information is confidential and only sent to registered email. GreenNode cannot intervene to recover vServer's login information (username / password / key) in all situations*
### **For Client under Linux operating system:**
#### **Option 1:** **Login SSH with password**
**Step 1**: Use Linux Terminal to connect to vServer\
ssh -p 234 \
**Step 2**: Change password for user stackops at first login
1. Enter the password of the user stackops with the content instancePassword in the email
2. Re-enter the password of the user stackops with the content instancePassword in the email
3. Enter new password for user stackops to use for login later
4. Re-enter new password for user stackops to use for future login
**Step 3**: Reconnect to vServer
#### **Option 2: Login SSH with SSH KEY**
*If you have already created an SSH Key Pair on VNGCLOUD portal (Click* [***here*** ](/vng-cloud-document/vserver/compute-hcm03-1a/security/ssh-key-key-pairs.md)*for instructions on creating SSH Keys) and have added SSH Key to vServer during initialization, you can do the following steps:*
**Step 1**: Use Linux Terminal to connect to vServer
ssh -i \~/Download/private\_key01.pem -p 234
**Step 2**: Change password for user stackops at first login
1. Enter the password of the user stackops with the content instancePassword in the email
2. Enter new password for user stackops to use for future login
3. Re-enter new password for user stackops to use for login later
**Step 3**: Reconnect to vServer
### **For Client under Windows operating system**
#### Option 1: Login SSH with password
**Step 1**: Use Windows' Putty to connect to vServer
**Step 2**: Change password for user stackops at first login
* Enter the password of the user stackops with the content instancePassword email
* Re-enter the password of the user stackops with the content instancePassword email
* Enter new password for user stackops to use for future login
* Re-enter new password for user stackops to use for future login
**Step 3**: Reconnect to vServer
1. Enter the new password changed in Step 2 for user stackops
2. Type the command sudo -i or sudo su to have root execution rights on the Server
#### Option 2: Login SSH with SSH KEY
*If you have already created an SSH Key Pair on VNGCLOUD portal (Click* [***here*** ](/vng-cloud-document/vserver/compute-hcm03-1a/security/ssh-key-key-pairs.md)*for instructions on creating SSH Keys) and have added SSH Key to vServer during initialization, you can do the following steps:*
**Step 1**: Use putty-gen to convert downloaded file **key.pem** to file **key.ppk**
**Step 2:** Use Windows' Putty to connect to vServer, authen using the file **key.ppk** created above
**Step 3:** Change password for user stackops at first login
1. Enter the password of the user stackops with the content instancePassword email
2. Enter new password for user stackops to use for future login
3. Re-enter new password for user stackops to use for login later
**Step 4**: Reconnect to vServer
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