Synchronize emails with imapsync
There is a way to have two or more synchronized Imap servers, an example would be: If the mail [email protected] receives an email, the mail [email protected] also receives it, which is on a completely different server, in a few words the mail will be duplicated on both servers, in case some are down, the others ...
Use DNS to optimize migrations
Generally, when a site is changed servers, the DNS logs take several hours to be replicated. This implies a significant downtime in sites with many visits. To avoid this downtime we have some tips for you. Modify the TTL TTL is the DNS record expiration time. Most websites have a ...
Using nmap LINUX
Nmap is not usually installed by default, therefore we proceed to it. Debian, Ubuntu, Linux Mint and derivatives: sudo apt -y install nmap Centos 7, Rhel 7 and derivatives: sudo yum install nmap -y The most used command is simply nmap hostname, this command will give you a list of all open ports and their …
Hacker, Cracker or Lick
The term hacker has always been misused and is always used to refer to someone who will steal your bank accounts or "hack" your social networks, I will try to explain the difference between hacker, cracker or lick. HACKER. A hacker is a person with advanced knowledge of computer security, networks, programming, etc. This person enjoys ...
Rocky Linux, a worthy successor?
With the news of the disappearance of CentOS 8 Linux and its multiple changes which will make it go from a stable enterprise-grade system to a beta system (for testing) many users have expressed their discontent, but it is not just standard users , These are multimillion dollar companies which you know ...
GENERATION OF AN ADVANCE INVOICE
METHOD “A” ADVANCE INVOICE WITH CREDIT NOTE 1.-We enter DOCUMENTS - NEW DOCUMENT 2.-We select the client to enable the documents that we can make and click on INVOICE 3.-We add the payment data, method, payment in a single payment 4.-In SAT code we use 84111506, ACT Unit Concept or description: ADVANCE ...