curl: (60) SSL certificate problem: self-signed certificate

 Error:

while running curl with https url getting below error:

curl: (60) SSL certificate problem: self-signed certificate

Solution:

add -k or --insecure in your curl command




example:

curl -k --request POST <>

How to present a iscsi lun to a linux machine for creating file system

 

On the linux machine :

1)Find out the iscsi name of the host:

cat /etc/iscsi/initiatorname.iscsi

note:in RHEL install "yum install iscsi-initiator-utils" if initiatorname.iscsi not found

2)discover the target storage array using iscsi target IP:

iscsiadm -m discovery -t st -p <target IP>

this output will be having iqn number about the storage target

3)make an iscsi I-T session on the host:

iscsiadm -m node -T <IQN of target>  -p <target IP> --login

4)verify the IT connection session by:

iscsiadm -m session

5)present a LUN from array and export to the host using IQN of the host

6)After LUN presented do a rescan of iscsi device by:

rescan-scsi-bus.sh

7)Create a new file sytstem on the new device and mount

mkfs /dev/sdb 

mkdir /mount1

mount /dev/sdb /mount1

Error Validating Storage Provider: mount failure, server: 1.1.1.1, export: /nfs1, nfs version: 3, returned state: 13

 NFS share mount on client failed:

Error Validating Storage Provider: mount failure, server: 1.1.1.1, export: /nfs1, nfs version: 3, returned state: 13

Solution:

On the NFS server:

vi /etc/exports nclude insecure option as 

/nfs1 *(rw,sync,insecure,no_subtree_check,no_root_squash)

then run: exportfs -a