Problem I reconfgured the management IP address and default gateway of PS6210X whilst on site. I tested access before I left site. When I got back to the office I was unable to connect to the Group Manager although I could SSH successfully. The following error appeared: Connection to the server could not be established Read More…
Author: Jordansphere
I currently work for an ISP on the South coast as a Senior Engineer. I mainly spend my time maintaining the Cloud. CCNA, VCP4/5, VCP-Cloud
Extend XFS EBS Volume on CentOS AWS Instance
Query I wanted to extend an XFS formatted disk in Linux which is backed by an EBS volume. The mount point is called mydata To extend the volume in AWS: Goto Compute -> EC2 -> EBS -> Volumes -> {Select Volume} -> Modify Volume -> {change size} On the Linux device ec2-user]# lsblk NAME MAJ:MIN Read More…
Reset and Configure Cisco Fabric Interconnect
Here are the steps to reset a Fabric Interconnect pair and set them up from scratch. Step 1 – Reset Fabric Interconnects to factory defaults Erase configuration on both Fabric A and Fabric B: old-swfi01-A# connect local-mgmt Cisco Nexus Operating System (NX-OS) Software TAC support: http://www.cisco.com/tac Copyright (c) 2009, Cisco Systems, Inc. All rights Read More…
Script to install RabbitMQ 3.7.9 on Centos7
Script to install RabbitMQ 3.7.9 on CentOS 7 #!/bin/bash # README # ONLY VARIABLE REQUIRED IS admin password for "rabbitmqctl add_user admin {MyPassword}" # PLease change before running script. # echo "#######################################################################"; echo "This script will install RabbitMQ 3.7.9 and open relevant firewall rules"; echo "#######################################################################"; yum -y install epel-release wget http://packages.erlang-solutions.com/erlang-solutions-1.0-1.noarch.rpm rpm -Uvh Read More…
HP DL460c Blade Randomly Not Recognising SD Card on Reboot
Problem When we reboot an HP DL460c Gen9 blade approximately 50% of the time it would not find the SD card and thus not boot. Resolution When booting -> Press F9 (System Utilities) -> System Configuraion -> BIOS/Platform Configuration (RBSU) -> System Options -> USB Options -> USB 3.0 Mode. Set to Auto Save Read More…
Create LACP Bond Interface in Centos 7
Issue I had two 10Gb ports I wanted to bond in Dynamic Link Aggegration (802.3ad) To get the network interface list use: nmcli connection In my output I wanted to use ens1f0 and ens1f1 interfaces Steps 1) Create Bond Interface (bond0) nmcli con add type bond con-name bond0 ifname bond0 mode 4 ip4 10.32.99.12/24 10.32.99.254 Read More…
New Node Gets Stuck in PendingActive State – NetApp Solidfire
Problem: When trying to add a new NetApp Solidfire (H610S4) node to an existing cluster the node became locked in a PendingActive state. Troubleshooting The log files showed the following error: 2019-11-25T13:47:50.149221Z node-sans11 master-1[26688]: [Bootstrapper] 26749 TickerIOService ms/Bootstrapper.cpp:1648:RunClusterSearch|Error in cluster search: ex=xInvalidVirtualNetwork at solidfire::IPAddress solidfire::VirtualNetworkInfo::ReserveAddress() (shared/VirtualNetworkInfo.cpp:302): Too few IP addresses supplied for VirtualNetwork 8 Read More…
Cryptographic Error: Trusted Certificate Entries are Not Password-protected Keytool
Problem When replacing the certificates on a vCloud Director 9.5 installation, I ran the configure command and the following error occurred. cryptographic error: trusted certificate entries are not password-protected keytool Troubleshooting Upon investigation of the keystore file it appeared that the entry type was trustedCertEntry keytool -storetype JCEKS -list -v -keystore certs.ks <snip> Alias name: http Read More…
Init: Private key not found – Apache Wont Start on CentOS
Problem When attempting to update a certificate in Apache the webserver would not restart. Apache Error Logs: [Tue Oct 29 14:42:07 2019] [error] Init: Private key not found [Tue Oct 29 14:42:07 2019] [error] SSL Library Error: 218529960 error:0D0680A8:asn1 encoding routines:ASN1_CHECK_TLEN:wrong tag [Tue Oct 29 14:42:07 2019] [error] SSL Library Error: 218640442 error:0D08303A:asn1 encoding routines:ASN1_TEMPLATE_NOEXP_D2I:nested asn1 Read More…
Script to Copy Yesterdays DB Backup to Remote Site
The following script will pick out yesterdays backup file and copy it over to a remote site using SCP Note: The format of the backup files are in this format : db-08-10-2019.bak.gz Note: You will need to install sshpass (eg yum -y install sshpass) and be comfortable with your password being in cleartext. #!/usr/bin/bash # Read More…
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