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Looking for an experienced Linux System Administrator / DevOps to diagnose the causes of periodic crashes of the online store. It is necessary not to temporarily eliminate the symptoms, but to find the root cause of the problem, explain it, and propose an optimal solution.What is known The online store has been operating for over 15 years. Linux server. PHP 5.6. MySQL. OPcache is enabled. SSH access is available. Access to the hosting panel is available. Access to logs is available. Server load graphs have been added.Symptoms Periodically: the site stops opening; errors occur: 503 Service Unavailable; HTTP 508; Client.Timeout exceeded while awaiting headers; the response time of the site sometimes increases to 8–11 seconds. Sharp peaks in CPU, memory, and Entry Processes are observed in the load graphs. No critical errors were found in the available PHP logs.Required to conduct a full diagnosis; to find the root cause of the problem; to identify the bottleneck; to explain the cause of the crashes; to propose an optimal way to eliminate it; to perform the necessary work after approval.Mandatory experience Linux; SSH; Apache / Nginx / OpenLiteSpeed; PHP; MySQL; server performance optimization; finding the causes of periodic crashes and high load.Before starting work, please answer How many years have you worked with Linux servers? Have you had experience in finding similar problems? What tools do you plan to use for diagnosis? Have you worked with old PHP projects (PHP 5.x)? What is the cost of the initial diagnosis? What is your hourly rate for further work (if needed)? When can you start? Please do not send template proposals. In your response, briefly describe what you will check first. If the problem is successfully identified and resolved, I am ready for long-term cooperation in server administration and development.

Description: Greetings! I am looking for a specialist/integrator for fiscalization systems and platforms for an online store. I have opened an individual entrepreneur (IE), have a digital signature key and an IBAN account. There are no other accounts (in Checkbox, platform systems, CRM) yet — everything needs to be registered and set up from scratch, turnkey.

I need help installing Word, Excel, and PowerPoint on a Mac. I'm looking for a specialist who can help me do this remotely,

We need an outsourced System Administrator. Responsibilities: • Configuration and support of the 1C server; • Migration of 1C (BAS) from a file system to a client-server (SQL); • Technical maintenance of office equipment and internet connections: - 2 printers - 1 scanner - 4-6 computers - installation and monitoring of antivirus protection; - installation of software on computers, configuration of employees' desktops

Task Description A specialist is required with experience in WhatsApp Business and Meta Business to analyze and resolve the reasons for the constant blocking of the WhatsApp Business account. Problem: When logging into the WhatsApp Business account, it is almost immediately blocked. After submitting an appeal, WhatsApp restores the account. After restoration and re-login, the account is blocked again. This situation has been repeating for several months. Important We: Do not use third-party applications for WhatsApp. Do not use modified versions of WhatsApp. Do not use bots, automation, or mass mailings. Do not send spam. Use only the official WhatsApp Business. Comply with platform rules. What needs to be done Conduct an audit and determine the possible cause of the blocks. Check: the device and its identifiers; IP addresses and connection geography; WhatsApp Business settings; related Meta/Facebook accounts; possible signs of automatic blocking by the anti-fraud system. Prepare recommendations for eliminating the cause of the blocks. If necessary, assist in preparing an appeal to WhatsApp/Meta support. Achieve stable account operation without subsequent automatic blocks. Requirements for the performer Experience with WhatsApp Business. Experience in resolving WhatsApp and Meta blocking issues. Understanding of Meta's anti-fraud systems. Successful cases of account recovery and stabilization. In your response, please indicate If you have experience solving similar problems. What reasons may cause such a situation. What diagnostic plan you propose. Examples of similar cases. Cost and timeline for the work. Budget: negotiable.