How to reset ILO controller from linux (without loosing config)

If you ever need to reset ILO controller from linux CLI ( without loosing the configs ) you can use the following trick:

Create an xml file (reset.xml) on server containing:

<RIBCL VERSION="2.0">
<LOGIN USER_LOGIN="admin" PASSWORD="something">
<RIB_INFO MODE="write">
<RESET_RIB/>
</RIB_INFO>
</LOGIN>
</RIBCL>

and then issue the following command:


hponcfg -f reset.xml

You will see a message like this :

root@pveg7:~# hponcfg -f reset.xml
HP Lights-Out Online Configuration utility
Version 4.2.0 Date 6/10/2013 (c) Hewlett-Packard Company, 2013
Firmware Revision = 1.87 Device type = iLO 3 Driver name = hpilo
Integrated Lights-Out will reset at the end of the script.

Please wait while the firmware is reset. This might take a minute
Script succeeded

 

At this point controller should be up again. Hope it helps.

Unifi controller in ubuntu 18.04 fix

To my disappointment Unifi Controller install on Ubuntu 18.04 fails big time. Their packages … Error message is somehow cryptic enough :

[2018-06-22 16:18:14,046]  INFO  db     - waiting for db connection...
[2018-06-22 16:18:14,546]  INFO  db     - Connecting to mongodb://127.0.0.1:27117
[2018-06-22 16:18:15,164]  ERROR system - [exec] error, rc=2
[2018-06-22 16:18:15,164]  INFO  db     - DbServer stopped
[2018-06-22 16:18:19,209]  ERROR system - [exec] error, rc=2
[2018-06-22 16:18:19,211]  INFO  db     - DbServer stopped
[2018-06-22 16:18:23,247]  ERROR system - [exec] error, rc=2

However i needed Unifi controller in order to control / setup an UniFi AP-AC-Pro ( we have one testing for one of our clients ). After some searching and tweaking around here how we fixed it:

cd /usr/bin
sudo mv mongod mongod.bin

And replace mongod with:

#!/bin/bash
cleaned_args=$(echo $* | sed -e 's/--nohttpinterface//')
exec /usr/bin/mongod.bin ${cleaned_args}

then

chmod +x mongod

Restart unifi service and point your browser to: http://localhost:8843/ and enjoy.

Create a maintainable Centos 7 box for web hosting

Goal: Create Centos 7 box for web hosting  ( LAMP stack / monitoring software code versioning software ) that will be easy to install , maintainable in time , easy to add functionality .

 

First things first: install the centos 7 minimal.

After instalation:

update OS

yum update
yum upgrade

generic tools

yum install perl perl-core ntpl nmap sudo libidn gmp libaio libstdc++ unzip sysstat sqlite net-tools mc bind-utils telnet

Remove iptables wrapper and install plain iptables service

yum remove firewalld

yum install iptables-services

Adding more useful software repositories

yum install https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
yum install http://rpms.famillecollet.com/enterprise/remi-release-7.rpm
yum install https://www.percona.com/redir/downloads/percona-release/redhat/latest/percona-release-0.1-3.noarch.rpm

Installing php 5.6

yum –enablerepo=remi-php56 install php php-gd php-mysql php-mcrypt

Installing mysql DB and backup tools

yum install Percona-Server-server-57 percona-xtrabackup

git

For Centos 7 we didn’t find (yet) a decent software repository for GIT 2.7 . Most probably we will make one and try to maintain it.  ( will be covered in another article )

Monitoring

yum install collectd collectd-apache

 

 

Installing Ricoh Aficio SG3100SNw in linux

So , you have decided to purchase a Ricoh Aficio SG3100SNw printer. Good. It’s a good choice for small / medium companies. What we like about it is that it comes with wireless interface and that is quite nice . Less cables more fun. I’m not going to get into details on how to unbox it and make the initial setup. I leave that as an exercise for the reader ( it’s not easy but up to a point it’s fun ) .   Continue reading Installing Ricoh Aficio SG3100SNw in linux

Resize VM images in proxmox

When you really need to resize a VM disk image ( and free space to be allocated into partitions inside the vm) you might want to read this:

Step-by-step guide

  1. Poweroff you VM from proxmox
  2. Grow the disk allocation from proxmox GUIresize-proxmox
  3. Open a shell to proxmox and use parted to resize the partitions ( for qcow you might need to mount it first on nbd )
    root@proxmox:~# qemu-nbd -c /dev/nbd0 /mnt/pve/gogu/images/108/vm-108-disk-1.qcow2
    root@proxmox:~# parted /dev/nbd0
    (parted) p
    Model: Unknown (unknown)
    Disk /dev/nbd0: 82.9GB
    Sector size (logical/physical): 512B/512B
    Partition Table: msdos
    Disk Flags:
    Number  Start   End     Size    Type     File system  Flags
     1      1049kB  525MB   524MB   primary  ext4         boot
     2      525MB   42.9GB  42.4GB  primary               lvm
    (parted) resizepart 2 82.8G
    root@proxmox:~# nbd-client -d /dev/nbd0
  4. Power on the VM and login to it. Time to put the free space to good use.
    pvdisplay
    pvresize /dev/vda2
    lvextend -l +100%FREE /dev/mapper/vg_webtest01-lv_root
    resize2fs /dev/mapper/vg_webtest01-lv_root
    # In case of xfs use:
    # xfs_growfs /dev/mapper/centos_template-root
  5. Job done . Enjoy