Showing posts fromLinux

linux

10 things to do after installing Ubuntu 12.10

14 Feb, 2013

I use windows as my operating system since version 3.1. Currently I have Laptops with Win7 and Win8. I never had a Laptop Linux but since I bought a new laptop I gave Ubuntu a try. I removed the Win8 and so far (20 days later) did not miss anything. If you want to try Ubuntu this link(http://blog.sudobits.com/2012/10/10/10-things-to-do-after-installing-ubuntu-12-10/) show 10 things you need to do after the setup.

07 Dec, 2021

Podman Pods are very similar to Kubernetes pods in a way that they can have more than one container. Every Podman pod contains one infra container by default. This container is responsible for associating the names space with the pod and allowing podman to connect the containers to another pod. Create a Pod using Podman The first step is to create a Pod using podman: sudo podman pod create –name For our example we will create a pod with the name wp-pod sudo podman pod create -p 8080:80 --name wp-pod After creating the Pod you can see the infra container using the command: sudo podman pod ps -a --pod Note that host port 8080 has been redirected to port 80 of the pod. Pod port settin

linux

Auto-starting ITDS 6.3 instances on RedHat 6.x

14 Feb, 2013

RHEL 6 switched from using the old System V init script setup to using Upstart.
Upstart deprecates the /etc/inittab file, which ITDS used for configuring auto-starting on \nix platforms
The normal inittab method of auto-starting for ibmslapd/ibmdiradm does not work on RHEL 6. Here's how to make it work This TN(http://www-01.ibm.com/support/docview.wss?uid=swg21244305) show the steps how to setup the auto-start

11 Jan, 2016

In this post i will describe the steps i follow to backup my IBM Connections 5.0. The TSM Server and Connections Serve are using Linux. Install TSM Client on the IBM Connections Server. Install gskcrypt and gskssl. Normally, these libraries can be found in an archive with the TSM Client. rpm -ivh gskcrypt64-8.0.x.x.linux.x8664.rpm rpm -ivh gskssl64-8.0.x.x.linux.x8664.rpm yum localinstall TIVsm-API64.x8664.rpm yum localinstall TIVsm-BA.x8664.rpm TSM Client Configuration. Add the TSM client service to autostart : chkconfig --add dsmcad chkconfig dsmcad on Create the configuration files dsm.sys and dsm.opt. Copy the files from samples /opt/tivoli/tsm/client/ba/bin/ \ cp dsm.opt.

linux

CentOS is becoming a rolling Linux distribution

10 Dec, 2020

Red Hat, CentOS's Linux parent company, announced it was "shifting focus from CentOS Linux, the rebuild of Red Hat Enterprise Linux (RHEL), to CentOS Stream, which tracks just ahead of a current RHEL release." In other words, CentOS will no longer be a stable point distribution but a rolling release Linux distribution. CentOS users are ticked off. Read the full article here(https://www.zdnet.com/article/red-hat-resets-centos-linux-and-users-are-angry/)

linux

Compress and decompress files on linux

28 Sep, 2011

Compressing and decompressing files on linux gzip {filename} Gzip compress the size of the given files using Lempel-Ziv coding (LZ77). Whenever possible, each file is replaced by one with the extension .gz. gzip mydata.doc
gzip .jpg bzip2 {filename} bzip2 compresses files using the Burrows-Wheeler block sorting text compression algorithm, and Huffman coding. Compression is generally considerably better than that achieved by bzip command (LZ77/LZ78-based compressors). Whenever possible, each file is replaced by one with the extension .bz2. bzip2 mydata.doc
bzip2 .jpg zip {.zip-filename} {filename-to-compress} zip is a compression and file packaging utility for Unix/Linux. Each file is

linux

Configure fixed IP Centos

30 Aug, 2013

I am configuring a Centos 6.3 box and need to setup a fixed IP. Above the steps Configure eth0

vi /etc/sysconfig/network-scripts/ifcfg-eth0

DEVICE="eth0"
NMCONTROLLED="yes"
ONBOOT=yes
HWADDR¤:BA:DB:37:F1:04
TYPE=Ethernet
BOOTPROTO=static
NAME="System eth0"
UUID=5fb06bd0-0bb0-7ffb-45f1-d6edd65f3e03
IPADDR=192.168.1.44
NETMASK=255.255.255.0

Configure Default Gateway

vi /etc/sysconfig/network

NETWORKING=yes
HOSTNAME=centos6
GATEWAY=192.168.1.1

Restart Network Interface

/etc/init.d/network restart

Configure DNS Server

vi /etc/resolv.conf

nameserver 8.8.8.8 Replace with your nameserver ip
n

07 Nov, 2021

Continuing with the preparation of my lab I have installed a vm with RHEL 8.4 updated and from there I will create a template. To create a template and use it later in the KVM the steps are as follows: obs: My host is an Ubuntu 20.04 Install the tools to work with guests: sudo apt install libguestfs-tools List the vms: virsh list --all Prepare the rhel8-2 virtual machine to be a template sudo virt-sysprep -d rhel8-2 Rename the vm to be a template sudo virsh domrename rhel8-2 rhel8-Template Open the VM Manager (virt-manager), and then select the rhel-Template. Right-click on it and select the Clone option, which will open the Clone Virtual Machine window.

linux

Disable iptables on CentOs 6.x

07 Jun, 2016

When you setup a lab machine you will need this 3 command lines to disable iptables (firewall) on linux. service iptables save service iptables stop chkconfig iptables off

linux

Domino & Linux ou Linux & Domino

25 Jan, 2009

Estou trabalhando para um projeto da Plansis que Ã© mover nossos servidores para um Datacenter.
Os motivos sÃ£o muitos: Melhor infraestrutura, link bem melhor (sem limite de banda com 2.500GB de trÃ¡fego) e tambÃ©m com reduÃ§Ã£o de custo.
O desafio Ã© mover uma infra, prÃ¡ticamente toda em Windows 2000/2003 com os softwares Domino,WebSphere Portal 6, Sametime 7.5, Quickr 8 e DB2 UDB hoje instalados no Datacenter localizado em na Plansis para um Datacenter com as mÃ¡quinas sendo na sua maioria Linux e apenas um servidor Windows no mÃ¡ximo.
Para a rede interna ainda fica um TSM 5.5, servidores para atender a equipe de desenvolvimento, um firewall e um servidor de arquivos. Prime

07 Jan, 2016

Today i receive a disk full alarm from my portal server. As usual i delete some logs and files left behind, but for this time this does not solve the issue. Search for big files or what folder is bigger on linux is hard using du. Googling i found a nice toll and what i found was a big surprise. I setup NCDU (NCurses Disk Usage) is a curses-based version of the well-known "du", and provides a fast way to see what directories are using your disk space. The setup is easy: 1 - yum install ncurses-devel ncurses 2 - download ncdu 3 - untar the file 4- ./configure --prefix=/usr 5 - make && make install To run just type ncdu at / and the tool will scan your entire server. Navigating on the

linux

Error when run dnf install rpm-build

31 Mar, 2025

I was installing the IBM MQ Server on a linux box yesterday. I got the error bellow: \root@gateway MQServer\ dnf install rpm-build
Updating Subscription Management repositories.
Instana 14 B/s | 20 B 00:01
Errors during downloading metadata for repository 'instana-agent': Status code: 401 for https://:[email protected]/agent/rpm/generic/x86\64/repodata/repomd.xml (IP: 34.253.98.124)
Error: Failed to download metadata for repo 'instana-agent': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried
Solution: Delete the Instana Agent repo: rm /etc/yum.repos.d/Instana-Agent.repo
Clear dnf cache: dnf clean all
run dnf i

linux

Farewell Docker. Welcome Podman

23 Nov, 2021

Today I received a notice on my computer about another Docker Desktop update, but this time a new agreement had to be accepted as now for professional use there is a subscription. I saw many people commenting about this when the new licensing model was announced and since Kubernetes will no longer support the Docker Container Engine, I decided to remove Docker Desktop from my MAC and install Podman. To remove the Docker Desktop I used this article(https://www.mytecbits.com/apple/macos/clean-way-to-uninstall-docker?utmsource=pocketmylist) and to install Podman I used the following steps: - brew install podman
- podman machine init
- podman machine start
Use podman info

linux

Free tool to collect performance information on servers AIX / Linux.

13 Jul, 2011

Free tool to collect performance information on servers AIX / Linux. See this link(http://www.ibm.com/developerworks/aix/library/au-analyzeaix/)

linux

Goodbye CentOS ? Hello Rocky Linux ?

14 Dec, 2020

When Red Hat, CentOS's Linux parent company, announced it was "shifting focus from CentOS Linux, the rebuild of Red Hat Enterprise Linux (RHEL), to CentOS Stream, which tracks just ahead of a current RHEL release." Many CentOS screamed in protest on social media. CentOS co-founder, Gregory Kurtzer, heard them and announced he'd create his own RHEL clone and CentOS replacement: Rocky Linux Read more information here(https://www.zdnet.com/article/goodbye-centos-hello-rocky-linux/)

linux

How i fix my WD My Book Live 3TB

27 Aug, 2016

Two days ago my NAS WD My Book Live died. I think because an energy problem. I bought an USB to SATA adapter and follow the instructions bellow. The steps worked for a My Book Live 3TB. You need to open and disassembly and extract the HD. If data partition is not ok, you will loose all data. 1) Download the virgin disk image (02.41.05-034) (203MB) from https://mega.co.nz/!FZkASQ6T!P3DMWzaOn62jSrG4SECtIDeJeLYEdmz6w6kR9it8U68599(https://mega.co.nz/%21FZkASQ6T%21P3DMWzaOn62jSrG4SECtIDeJeLYEdmz6w6kR9it8U68) 2) Extract with 7-zip and you should have a file called mybook3tb.img http://www.7-zip.org/download.html208(http://www.7-zip.org/download.html) 3) Format an 8GB+ thumbdrive or externa

linux

How i solve my issues with Time Machine on macOS Sierra

25 Oct, 2016

Since i update my mac to macOS sierra, my TimeMachine backups was not running well. On El Capitain i don't exprience any issues using WD My BookLive or a disk attached to my ASUS Router. After the upgrade the WD disk is not recognized by TimeMachine, the "ASUS" disk had the same problem. I google a lot and found a final solution to my problem with TimeMachine Problem number 1 - WD My BookLive not found by TimeMachine Steps to solve: Create a sparse image – a virtual drive that Time Machine will see as a valid backup disk. Copy the sparsebundle to your network drive, then mount it. Tell Time Machine to use the mounted sparsebundle for backups. Tell your Mac to mount the virtual drive

linux

How setup ITDS 6.3 on Centos 6.3

14 Feb, 2013

Graphical interface is not supported. So we need to use the rpm commands to setup. Before you begin setup DB2 9.7.0.4 rpm -ivh idsldap-cltbase63-6.3.0-0.x86\64.rpm
rpm -ivh idsldap-clt64bit63-6.3.0-0.x86\64.rpm Install KSH or you get the error bellow \root@localhost tdsfiles\ rpm -ivh idsldap-cltjava63-6.3.0-0.x86\64.rpm
error: Failed dependencies:
/bin/ksh is needed by idsldap-cltjava63-6.3.0-0.x86\64 yum install ksh rpm -ivh idsldap-cltjava63-6.3.0-0.x86\64.rpm
rpm -ivh idsldap-srvbase64bit63-6.3.0-0.x86\64.rpm
rpm -ivh idsldap-srv64bit63-6.3.0-0.x86\64.rpm Verify the setup rpm -qa | grep idsldap idsldap-clt64bit63-6.3.0-0.x86\64
idsldap-cltbase63-6.3.0

06 Feb, 2025

The watch command is a useful utility in Unix-like systems that allows you to execute a command periodically and display its output. However, macOS does not come with watch pre-installed. If you're running macOS Sequoia and want to use watch, follow the steps below to install it. Recently i switch my mabook to a new MacBook Pro M2 and try to use the command to watch some openshift logs and i got the following result: !(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAA6gAAAC6CAYAAACjt2AlAAAAAXNSR0IArs4c6QAAAJBlWElmTU0AKgAAAAgABgEGAAMAAAABAAIAAAESAAMAAAABAAEAAAEaAAUAAAABAAAAVgEbAAUAAAABAAAAXgEoAAMAAAABAAIAAIdpAAQAAAABAAAAZgAAAAAAAACQAAAAAQAAAJAAAAABAAOgAQADAAAAAQABAACgAgAEAAAAAQAAA6igAwAEAAAAA

linux

How to kill Windows 8

04 Feb, 2013

Last month i bought a new Laptop. My old HP died. The new Laptop comes with Win 8. I try to use Win 8 but i think it was not so friendly and honestly it is time to have a Linux Desktop. I chose Ubuntu and the setup, on the Toshiba P875-S7310, was easy and fast, after i installed an SSD HD and more 8 GB RAM.
The only thing that did not work was the LAN. How to solve the problem : sudo apt-get install linux-headers-generic build-essential wget http://www.orbit-lab.org/kernel/compat-wireless-3-stable/v3.5/compat-wireless-3.5.1-1-snpc.tar.bz2(http://www.orbit-lab.org/kernel/compat-wireless-3-stable/v3.5/compat-wireless-3.5.1-1-snpc.tar.bz2) tar -xf compat-wireless-3.5.1-1-snpc.tar

linux

How to Resolve Another app is currently holding the yum lock

17 Feb, 2017

Yesterday i start to setup some new servers and need to install several libraries on Centos 7 Yum is the first option and when i start a command like yum install i got several erros and yum was locked. See this short video and solve the problem.

linux

How to setup Java 7 on Ubuntu 12.10 the easy way

06 Feb, 2013

sudo add-apt-repository ppa:webupd8team/java sudo apt-get update && sudo apt-get install oracle-java7-installer http://handytutorial.com/install-oracle-java-7-jdk-jre-in-ubuntu-12-1012-04/(http://handytutorial.com/install-oracle-java-7-jdk-jre-in-ubuntu-12-1012-04/)

linux

How to specify port when ssh to server

02 Apr, 2015

Need this kind of port today. The ssh 22 port was used on the firewall for another server. The admin publish the server using port 1234
According to man ssh: -p port Port to connect to on the remote host. This can be specified on a per-host basis in the configuration file. So you should be looking at: ssh -p 1234 user@host to connect to port 1234.

linux

IBM Installation Manager GUI crashes on RHEL 6.6

08 Dec, 2014

The IBM Installation Manager GUI crashes on RHEL 6.6 during the installation of a product while going through the Installation wizard screens. The IBM Installation Manager GUI crashes and a JVM termination window pops up with the following text: JVM terminated. Exit code=1 /opt/IBM/InstallationManager/eclipse/jre7.0.0.sr6201312131238/ jre/bin/java -Xms40m -Xmx512m I run the Installation Manager in Console mode to complete de installation More options on the TN bellow
http://www-01.ibm.com/support/docview.wss?uid=swg21690056(http://www-01.ibm.com/support/docview.wss?uid=swg21690056)

linux

Improving DNS Lookups on Linux

17 Oct, 2017

A good DNS service is very important for a mail server. On Linux servers you need to put your DNS servers on a file called resolv.conf. In general you have two entries like this: nameserver1 192.168.10.10 nameserver2 10.10.1.1 If one server does not respond then linux will try the second, but there is a timeout for this: timeout:n Sets the amount of time the resolver will wait for a response from a remote name server before retrying the query via a different name server. This may not be the total time taken by any resolver API call and there is no guarantee that a single resolver

linux

Install atop to monitor Linux processes

27 Apr, 2017

To install atop on Centos you need to enable EPEL Repository RHEL/CentOS 7 64-Bit wget http://dl.fedoraproject.org/pub/epel/7/x8664/e/epel-release-7-9.noarch.rpm rpm -ivh epel-release-7-9.noarch.rpm Use yum install atop to install on your server. More information on this link http://www.tecmint.com/how-to-install-atop-to-monitor-logging-activity-of-linux-system-processes/

linux

Installing MongoDB with Homebrew on MAC

29 May, 2020

When i execute brew install mongodb the error message above appears : Error: No available formula with the name "mongodb" ==> Searching for a previously deleted formula (in the last month)... Warning: homebrew/core is shallow clone. To get complete history run:git -C "$(brew --repo homebrew/core)" fetch --unshallow Error: No previously deleted formula found. ==> Searching for similarly named formulae... Error: No similarly named formulae found. ==> Searching taps... ==> Searching taps on GitHub... Error: No formulae found in taps. How i solve this problem: The formula mongodb has been removed from homebrew-core. So i need to use a custom tap made by mongodb team I used the fol

linux

IPV6 Launch Today!

06 Jun, 2012

Major Internet service providers (ISPs), home networking equipment manufacturers, and web companies around the world are coming together to permanently enable IPv6 for their products and services by 6 June 2012.
!Image:IPV6 Launch Today!(http://platao.plansis.com.br/blogkenio.nsf/dx/06062012134059KCAMKP.htm/content/M2?OpenElement)

linux

Just in case you donÂ´t have a graphical interface on linux

30 Aug, 2013

Transfer files between machines is easy using Filezilla Client. But if you donÂ´t have a graphical interface you need to know some commands. You can use sftp or ftp
http://www.cyberciti.biz/faq/linux-unix-ftp-commands/(http://www.cyberciti.biz/faq/linux-unix-ftp-commands/)

linux

Keep Your SSH Session Running when You Disconnect

22 Apr, 2013

I am installing several softwares this week remotely, from my home office. Keep the ssh session is a key for the success. Screen is like a window manager for your console. It will allow you to keep multiple terminal sessions running and easily switch between them. It also protects you from disconnection, because the screen session doesnâ€™t end when you get disconnected A basic tutorial about screen you can read here(http://www.howtogeek.com/howto/ubuntu/keep-your-ssh-session-running-when-you-disconnect/) Another configuration is to tell you ssh terminal to send keep alive. I use MobaXterm. This can be configured using the menu settings -- ssh !Image:Keep Your SSH Session Running when Yo

linux

Linux Desktop

06 Sep, 2007

Com o lanÃ§amento do Notes 8 o desktop Linux fica mais atrativo e poderoso.
Veja este vÃdeo

Linux

LINUX isn't Hard Once You Understand This (File Directories)

25 Aug, 2026

This guide breaks down the Linux file system into a simple, beginner-friendly structure. It explains how Linux organizes all files and disks starting from a single root directory (/) instead of trad

linux

Linux Turns 25 years old today. Live long and prosper.

25 Aug, 2016

!linux(http://www.mysphere.com.br/wp-content/uploads/2016/08/linux.png) Linux will turn 25 years old on August 25, the day Linus Torvalds sent out his fateful message asking for help(https://groups.google.com/forum/%21msg/comp.os.minix/dlNtH7RRrGA/SwRavCzVE7gJ) with a new operating system. “I’m doing a (free) operating system (just a hobby, won’t be big and professional like gnu) for 386(486) AT clones. This has been brewing since april, and is starting to get ready. I’d like any feedback on things people like/dislike in minix, as my OS resembles it somewhat (same physical layout of the file-system (due to practical reasons) among other things),” he wrote in the comp.os.minix message board.

linux

Microsoft Takes .NET Open Source And Cross-Platform

12 Nov, 2014

For more than 12 years now, the .NET framework(http://www.microsoft.com/net) has been the programming model for developers who want to build apps for Windows. But in its efforts to take many of its developer tools cross-platform, Microsoft today announced that it plans to take .NET to both the Mac and Linux soon and that it is open-sourcing most of the full server-side .NET core stack (not client-side .NET), starting with the next version. Full article here(http://techcrunch.com/2014/11/12/microsoft-takes-net-open-source-and-cross-platform/)

linux

Next-generation Linux file systems: NiLFS(2) and exofs

04 Nov, 2009

From developerworks LinuxÂ® continues to innovate in the area of file systems. It supports the largest variety of file systems of any operating system. It also provides cutting-edge file system technology. Two new file systems that are making their way into Linux include the NiLFS(2) log-structured file system and the exofs object-based storage system. Discover the purpose behind these two new file systems and the advantages that they bring. See the full article here(http://platao.plansis.com.br/blogkenio.nsf/dx/Linux%C3%82%C2%AE%20continues%20to%20innovate%20in%20the%20area%20of%20file%20systems.%20It%20supports%20the%20largest%20variety%20of%20file%20systems%20of%20any%20operating%20syst

11 Jun, 2020

I am creating a server (Centos 8) to develop a system that will use an application using REACT as a front end to show data from different sensors.I will use NGINX as a webserver and Node-red as a back end.In this first post I describe how to install NGINX. Install nginx package using the yum command on CentOS 8: sudo yum update sudo yum install nginx Update firewall settings and open TCP port 80 and 443. Run: sudo firewall-cmd --permanent --zone=public --add-service=https --add-service=http sudo firewall-cmd --reload Enable nginx service by running systemctl command so that it starts at server boot time: sudo systemctl enable nginx start the service, run: sudo systemctl start nginx

13 Dec, 2024

Yesterday i was helping a customer to deploy his OpenShift 4.16.x cluster. The first step was the bastion host preparation. This includes the setup of the OCP CLI. We do the default instalation of the CLI on top of RHEL 8.x but after the installation we got the following error: oc version oc: /lib64/libc.so.6: version GLIBC2.33' not found (required by oc) oc: /lib64/libc.so.6: version GLIBC2.34' not found (required by oc) oc: /lib64/libc.so.6: version GLIBC2.32' not found (required by oc) We tried to compile the new GLIBC .but without success. The solution: Download the CLI version compiled for RHEL 8. Link here(https://access.redhat.com/bounce/?externalURL=https%3A%2F%2Fmirror.opensh

linux

Old Hardware? New Live with Linux

29 Sep, 2009

This article(http://www.ibm.com/developerworks/linux/library/l-recycle-hardware/index.html) on IBM DeveloperWorks show us a simple aproach on How to get old hardware and recycle it and save money.

linux

OpenMediaVault error when try to mount a shared folder

30 Dec, 2024

I follow the instructions to create and share a folder on OMV but i can't access the shared folder using my MAC or Linux Manchines. On the Mac i got the error : The operation can't be completed because the original item for "foder name" can't be found. When i try to mount the shared folder on a Linux machine i got Permission Denied. I discovered that only the first user created during the initial setup can access the shared folders. I opened a terminal session and ssh to the omv machine. The permissions for the disks are shown bellow: !(https://www.mysphere.com.br/wp-content/uploads/2024/12/image.png) The failed disk have the permission drwx----- The only way i found was to change the

linux

Openshift-install CLI Tool – Crash – Unable to decode instructions

10 May, 2022

We started a CP4D installation on AWS, but without using AWS ROSA. We create a new cluster from scratch. In our lab everything worked perfectly but when the client went to do its installation the Openshift CLI displayed the following error message: assertion failed \inst.has.value(): failed to decode instruction: 0x0 After much analysis, we discovered that the client's Administrator was using a MacBook Pro M1 laptop. We found the solution at this link https://veducate.co.uk/

linux

Portal Fix Pack 6.0.1.7 error on linux

14 Dec, 2010

The error message bellow appears when the owner of the file wpsconfig.sh is different from the owner of the Fix Pack 6.0.1.7 files Error ( 2 ): IOException creating RunTime(): /opt/ibm/WebSphere/PortalServer/config/WPSconfig.sh: cannot execute
Error 112 -- Return code (888) differs from the expected code (0). To solve the problem change the owner of the WPSconfig.sh to match the owner of the Fix Pack files.

linux

Red Hat introduces new no-cost RHEL option

20 Jan, 2021

On December 8, 2020, Red Hat announced a major change to the enterprise Linux ecosystem(https://www.redhat.com/en/blog/centos-stream-building-innovative-future-enterprise-linux): Red Hat will begin shifting our work from CentOS Linux to CentOS Stream on December 31, 2021. We and the CentOS Project governing board believe that CentOS Stream represents the best way to further drive Linux innovation. It will give everyone in the broader ecosystem community, including open source developers, hardware and software creators, individual contributors, and systems administrators, a closer connection to the development of the world’s leading enterprise Linux platform. Now you can have a 100% RHEL no-

16 Nov, 2021

Today i will install Code Ready. You can install Openshift on your laptop. See this link(https://developers.redhat.com/products/codeready-containers/overview?onebox=crc) . My RHEL 8.4 VM has a small disk and first i need to resize the disk and then install CodeReady Using this commands i change from 20 GB to 50GB disk First you need to locate the vm disk with the command sudo virsh domblklist rhel8-1 the output was: Target Source ------------------------------------------------------- vda /var/lib/libvirt/images/rhel8-2-clone.qcow2 sda - To resize the disk the VM must be not running and must not have a snapshot. Just type this command and add 30GB sudo qemu-img resize /var/lib/lib

linux

rsync is faster than scp to copy files between machines

31 Dec, 2024

rsync is generally faster than scp for copying files, especially when transferring a large amount of data or syncing directories. Here's why: 1. Incremental Transfers - rsync: Only transfers the parts of files that have changed, rather than the entire file. This makes subsequent transfers much faster. - scp: Always transfers the entire file, even if only a small part of it has changed. 2. Compression - rsync: Supports compression during the transfer (using the -z option), which reduces the amount of data sent over the network. - scp: Also supports compression (using the -C option), but it doesn't have the same efficiency in skipping unchanged data. 3. Resume Support - rsync: Can

12 Jun, 2020

You need A Fully Qualified Domain Name (FQDN) pointing to a dedicated IP address of the webserver. This needs to be configured by your DNS administrator or provider. 1 - Install Certbot in Centos 8 sudo curl -O https://dl.eff.org/certbot-auto chmod 0755 /usr/local/bin/certbot-auto 2 - Configure Nginx server\name on nginx.conf Edit nginx.conf an change the variable server\name to the same FQDN of your server for example: server\name www.mysphere.com.br; 3 - Run the certbot command: Execute sudo /usr/local/bin/certbot-auto --nginx and follow the instructions Test if your Nginx server using https://

linux

Setup Atom Text Editor on Ubuntu 14.04

12 Aug, 2016

My MacBook died yesterday. I am waiting the repair. Now working with my Ubuntu laptop. Some applications must be installed. Atom was very easy. Open a terminal window and run the following: sudo add-apt-repository ppa:webupd8team/atom sudo apt-get update sudo apt-get install atom

06 May, 2018

Command line tools are always welcome. Today i need to setup my MAC to work with IBM Cloudant Install curl on your MAC if you haven't done it yet. 1 - You need to setup the Cloudant DB using your IBM Cloud account. 2 - Go to service credentials and get your username, password and hostname Sample: "username": "xxxx-xxx-xxx-bluemix", "password": "yourcloudantpassword", "host": "xxxx-xxx-xxx-bluemix.cloudant.com" 3 - Test the connection curl –v –u xxxx-xxx-xxx-bluemix 'https://xxxx-xxx-xxx-bluemix.cloudant.com' The command will prompt for the password: yourcloudantpassword You will see a lot off lines but pay attention on the line Authorization: Basic. This will be used to setup acur

20 Oct, 2020

I setup Node-red to use HTTPS and everything works fine. All HTTPS requests go to default port of Node-red. Today i need to setup a communication with a client that not support HTTPS, just HTTP. The solution i found was to setup Nginx as reverse proxy. Nginx receives the HTTP requests and then forward them to Node-red. On my Nginx server i just add the following lines server { listen 80; location /reddata { proxy\pass https://:port/reddata; } }

linux

Setup ntfs-3g on Centos 6.x

06 Feb, 2013

Centos 6.x by default does not mount ntfÂ´s disks. You need ntfs-3g How to wge http://rpms.famillecollet.com/enterprise/remi-release-6.rpm(http://rpms.famillecollet.com/enterprise/remi-release-6.rpm) sudo rpm -Uvh remi-release-6.rpm epel-release-6.rpm yum --enablerepo epel install ntfs-3g t http://dl.fedoraproject.org/pub/epel/6/x8664/epel-release-6-8.noarch.rpm(http://dl.fedoraproject.org/pub/epel/6/x8664/epel-release-6-8.noarch.rpm) wget http://rpms.famillecollet.com/enterprise/remi-release-6.rpm(http://rpms.famillecollet.com/enterprise/remi-release-6.rpm) sudo rpm -Uvh remi-release-6.rpm epel-release-6.rpm yum --enablerepo epel install ntfs-3g

linux

Setup OpenVPN Centos 6.3

25 Mar, 2013

I found a lot of documentation and this is my setup install the necessary packages yum install gcc rpm-build autoconf.noarch zlib-devel pam-devel lzo lzo-devel openssl-devel automake imake pkgconfig gcc-c++ libcrypto.so.6 install openvpn yum install openvpn Copy the files cp -r /usr/share/doc/openvpn-2.1.3/easy-rsa/ /etc/openvpn/ Create the certificate.
Youâ€™ll be asked to fill the field data, you can empty that with click enter repeatedly, but the one
you have to fill is the â€œCommon Nameâ€� field. cd /etc/openvpn/easy-rsa/2.0
source ./vars
./vars
./clean-all Build Key Server ./build-key-server server Build Diffie Hellman ./build-dh Create the server.conf

linux

Setup Oracle Java jre 1.7 on Centos 6.3

06 Feb, 2013

Download the rpm file from java.com Install using the rpm command rpm -Uvh jre-7u13-linux-x64.rpm Use alternatives to config \ alternatives --config java There are 3 programs which provide 'java'. Selection Command
-----------------------------------------------
\ 1 /usr/java/latest/jre/bin/java
+ 2 /usr/java/jre1.7.0\13/bin/java
3 /usr/java/jdk1.7.0\13/jre/bin/java Enter to keep the current selection+, or type selection number: Select the java you want to use in my case 2 Test using the command java -version java -version
java version "1.7.0\13"
Java(TM) SE Runtime Environment (build 1.7.0\13-b20)
Java HotSpot(TM)

linux

Solved - Second Monitor on my Ubuntu 12.10

28 Feb, 2013

Is there a lot of complaints about using second monitor with Ubuntu 12.10 When i setup Ubuntu, all monitors was detected and works perfectly. After some restarts , things was not working anymore. I try several commands but this one works from this topic(http://askubuntu.com/questions/217900/dual-monitors-dont-initialise-correctly-in-booting-12-10) The problem is, in my opinion, the lightDM is not great with multi-monitors. There is a good fix though. install disper sudo apt-get install disper then edit /etc/lightdm/lightdm.conf to have a display-setup-script=disper -s line example: SeatDefaults user-session=ubuntu greeter-session=unity-greeter display-setup-script=disper -s This

linux

Subscription error after create a vm from RHEL 8.4 template

08 Nov, 2021

After creating a VM using the template that was created using RHEL 8 I tried to register the new VM and the following error was shown: This system is registered to Red Hat Subscription Management, but is not receiving updates. You can use subscription-manager to assign subscriptions. Error: There are no enabled repositories in "/etc/yum.repos.d", "/etc/yum/repos.d", "/etc/distro.repos.d" The solution for me was to remove and add subscriptions again RHEL8: subscription-manager remove --all subscription-manager clean subscription-manager register --username --auto-attach dnf repolist or yum repolist

linux

Support for Notes on Windows 7, Snow Leopard (Mac OS X 10.6), and RHEL 5.4

23 Jan, 2010

Support for Notes on Windows 7, Snow Leopard (Mac OS X 10.6), and RHEL 5.4 Windows 7, Snow Leopard (on Mac OS X 10.6.2), and Red Hat Enterprise Linux 5.4 Desktop certification testing has been completed for Notes 8.5.1 Fix Pack 1, available now. As part of this release, Notes 32-bit will be supported on Windows 7 64-bit. Download FP1 in this link(http://www-01.ibm.com/support/docview.wss?rs=899&uid=swg24025721&ca=blog)

linux

The Pencil Project for prototyping mobile applications

23 Jul, 2014

This is a cool tool. It is free and runs on Linux, Mac and Windows.
Pencil is built for the purpose of providing a free and open-source GUI prototyping tool that people can easily install and use to create mockups in popular desktop platforms. Go to the Pencil Website(http://pencil.evolus.vn/) and look for more details and download options. !Image:The Pencil Project for prototyping mobile applications(http://platao.plansis.com.br/blogkenio.nsf/dx/pencil.htm/content/M2?OpenElement)

linux

The Revolution OS

12 Jan, 2016

I was researchingLinuxandits development.I found thelink to the videoRevolution OSthatshows howbeautifulisthe storybehindthe movementof free software andopen source. Theychanged the world.

linux

Using WGET to download software from IBM

18 Sep, 2014

A few months ago I heard that it was possible to download files from Passport advantage using wget on a linux terminal.
Never needed to test this until yesterday when I needed to upload 3 GB of files to a server (home office to datacenter) that had no possibility of using a browser to download from Passport Advantage. What I did was the following: 1 - Log on passport advantage (using my laptop) and looked for the desired software
2 - I changed the download option for https
3 - When I started downloading the file I copied the URL
4 - The URL is complex like this one: (i changed some characteres)
https://serverfromibm/sdfdl/v2/fulfill/CITI7BP/Xa.2/Xb.ll8xxxxxxxxxxxxxxxxxx

linux

WCT will not start on Linux x64

18 Dec, 2014

Today i setup an IBM HTTPServer on top of Red Hat 6 64bits . The wct.sh command doesnÂ´t work. !Image:WCT will not start on Linux x64(http://platao.plansis.com.br/blogkenio.nsf/dx/18122014150229KCAMZ5.htm/content/M2?OpenElement) I found on the log some missing libs To solve the problem: yum install gtk2-engines.i686
yum install libXtst.i686

linux

What i did to get more space on /tmp on linux.

01 Jan, 2016

Yesterday i was installing a TSM Server for our company. The db2 installer complain about the /tmp size. The installer need 2,5GB and my /tmp has only 2 GB. I create a "disk" using dd command with 4GB on a partition with lots of space. dd if=/dev/zero of=/usr/tmpDSK bs=1024k count=4096 mkfs -t ext3 /usr/tmpDSK file /usr/tmpDSK umount /tmp mount -o loop,exec,nosuid,rw /usr/tmpDSK /tmp After the db2 installation i umount the /tmp and mount it back using fstab -a

18 Jun, 2020

Today i upgrade one server to Domino 11.0.1 from Domino 11.0 on linux. When the server starts the HTTP the console show the error bellow: \103028:000002-00007F2CD562E740\ 06/18/2020 10:40:45 AM JVM: Java Virtual Machine initialized. \103028:000002-00007F2CD562E740\ 06/18/2020 10:40:45 AM HTTP Server: Java Virtual Machine loaded \103028:000002-00007F2CD562E740\ 06/18/2020 10:40:50 AM HTTP JVM: java.lang.reflect.InvocationTargetException \103028:000002-00007F2CD562E740\ 06/18/2020 10:40:50 AM HTTP JVM: at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) \103028:000002-00007F2CD562E740\ 06/18/2020 10:40:50 AM HTTP JVM: at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAcc