– ifconfig : This utility is used to check the IP address assigned to each of the ethernet/interface : # ifconfig eth0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500 inet 172.17.0.1 netmask 255.255.0.0 broadcast 172.17.255.255 inet6 fe80::42:a2ff:fecb:2ba0 prefixlen 64 scopeid 0x20<link> ether 02:42:a2:cb:2b:a0 txqueuelen 0 (Ethernet) RX […]
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Permissions in Linux
The Linux filesystem gives us three types of permissions. Here is a simplified review: Owner permissions − The owner’s permissions specifies what actions the owner of the file can perform on the file. Group permissions − The group’s permissions specifies what actions a user, who is a member of the group that a file belongs […]
File system hierarchy in Linux
In Unix/Linux everything is organized in the form of files, whether it’s devices, directories, files, etc. A file is a smallest unit in which the information is stored. Directories and their usage – / The file system root. /root The home directory of the root user. The root user’s home directory is located outside […]
PSOD on ESXi version 7.0 Update 2 with a race condition by “portset lock acquire request”
Please check “vmkernel.log” for following entries to confirm if you are affected by the the race condition bug The PSOD issue has been resolved by VMware in their future release of ESXi host versions above 7.0 Update 3*. *Please Note: Check KB 86398 for more detailsQ. What are the tentative timelines for the next vSphere 7.x […]
VCSA “wcp” service keeps crashing
“wcp” service crashes due to which the ESXi host can not be put out of maintenance mode (other symptoms can also occurs however I have never come across those) The VCSA “wcp” service keeps crashing while starting due to an invalid entry in the wcp config file Error executing start on service wcp. Details { […]