Piergiorgio Venuti
Server Cloud
server cloud
A cloud server or VPS (Virtual Private Server) is a fully-fledged server with its own operating system and well-defined hardware features only that unlike a classic server it shares physical resources with other virtual machines in this way more VPS can be run simultaneously on the same server (hypervisor).
This virtualization technique allows significant cost savings and an optimization of hardware resources as it is possible to run multiple operating systems on the same hardware.
Server Cloud – Pros cons
Pros:
♦ Migration: It is possible to “move” (migrate) a VPS from one server (hypervisor) to another (even without interruption of service).
Example: You have created a VPS on a hypervisor in Italy and you want to move it to a server in America. With a VPS, as long as the Cloud Provider has another Datacenter in America, this can be done quickly.
♦ Scalability: It is the possibility of increasing or decreasing the hardware resources (CPU, RAM, Disk, etc) without rebuilding the VPS and in some cases without restarting it in full transparency to users who use the services provided.
Example: A VPS of 2 cores, 1 GB of RAM and 20 GB of disk has been created but after a few months we realize that the RAM memory is insufficient for the services provided and it is necessary to increase it. With a VPS it is very easy to solve this problem, just increase the RAM from the configuration panel and the new configuration will be applied (in the case of linux systems without the need to reboot).
♦ Autoscaling: It is the possibility to increase or decrease the resources (scaling) automatically according to well defined hardware policies. This technique is extremely valid in cases of load peaks.
Example: A VPS has been created with 2 cores, 1 GB of RAM and 20 GB but in some periods of the year due to the high user access these resources are not sufficient, then in this case it is possible to configure these policies:
a) If the CPU is at 90% for more than 1h then the CPU of a core increases every 30min for a maximum of 6 cores and then if the CPU is less than 10% for more than 1h decrease the CPU of a core every 30 min up to a minimum of 2 cores.
b) If the RAM is 99% for more than 1h then increase the RAM of 1Gb every 30min for a maximum of 32Gb and then if the RAM is less than 50% for more than 1h decrease the RAM of a core every 30 min until at a minimum of 1Gb.
♦ Low cost: by comparing the cost of a VPS to that of a fiscal server like hardware resources, the cost of a VPS is much lower, especially considering that some cost items are already included in the VPS fee. :
a) Energy consumption;
b) Internet band;
c) Cost of public IP addresses;
d) Costs related to housing (cooling, surveillance, etc);
e) Firewall;
f) Technical assistance.
Cons:
♦ Shared resources: Depending on the configurations and characteristics of the Cloud Provider, some hardware resources, such as the CPU, could be shared so performance may be lower than a physical server. This condition is not always true as it is possible to request a 100% allocation on all hardware resources to your Cloud Provider.
Server Cloud – Limits:
- ♦ OS Virtualization: Not all operating systems and platforms can be virtualized (Eg AS400, Apple OS).
- ♦ Band: Although this is not an inherent problem of virtualization itself there could be latency differences in the Internet connection between a physical server in the company and a VPS if users are predominantly within the company and if the company has not an adequate Internet line.
Example: A physical server in the customer’s DMZ is accessed by its LAN users via a 10Gb line, if the server is virtualized and becomes a VPS at a Cloud provider, access to it is transmitted via the client’s Internet line which may be more slow.
Server Cloud – False myths:
- ♦ A VPS does not have the same performance as a physical server: By allocating 100% of the physical resources and correctly dimensioning a VPS the latter has nothing to envy to a physical server from a performance point of view.
- ♦ A VPS is less secure than a physical server: A VPS can have the same degree of security as a physical server because it is possible to adopt the same security measures (Firewall, Antivirus, Hardening, VPN) applicable to a Fiscal server.
Check out the Cloud Server
[btnsx id=”2931″]
Useful links:
IaaS | Cloud | Infrastructure as a Service
Let’s Encrypt Free Certificates for all Webhosting users
CloudFlare free Plesk extension for Webhosting users
Free Microsoft Windows licenses
Share
RSS
More Articles…
- From Cyberfero to Cyberfero: rebranding of the leading cybersecurity company
- NIS: what it is and how it protects cybersecurity
- Advanced persistent threats (APTs): what they are and how to defend yourself
- Penetration Testing and MFA: A Dual Strategy to Maximize Security
- Penetration Testing: Where to Strike to Protect Your IT Network
- Ransomware: a plague that brings companies and institutions to their knees. Should you pay the ransom? Here is the answer.
- Why IT audit and log management are important for Cybersecurity
- Red Team, Blue Team and Purple Team: what are the differences?
Categories …
- Backup as a Service (18)
- Acronis Cloud Backup (11)
- Veeam Cloud Connect (4)
- Cloud Conference (3)
- Cloud CRM (1)
- Cloud Server/VPS (22)
- Conferenza Cloud (4)
- Cyberfero (15)
- ICT Monitoring (5)
- Log Management (2)
- News (25)
- ownCloud (4)
- Privacy (7)
- Security (203)
- Cyber Threat Intelligence (CTI) (8)
- Deception (4)
- Ethical Phishing (11)
- Netwrix Auditor (2)
- Penetration Test (11)
- Posture Guard (3)
- SOCaaS (65)
- Vulnerabilities (84)
- Web Hosting (15)
Tags
Unknown Feed
Full Disclosure
- Apache Struts2 Core Arbitrary Code Execution via OGNL Sandbox Escape November 2, 2026Posted by Daniel Owens via Fulldisclosure on Nov 01Description Apache Struts2 Core version 7.4.0 and below attempt to prevent arbitrary code execution via Object-Graph Navigation Language (OGNL) through several different mechanisms but only in a cursory fashion -- the libraries only guard against immediate calls evaluated by the OGNL engine via `SecurityMemberAccess`, but an allowed […]
- Apache Struts2 Core TokenHelper Token Cryptographic Timing Side-Channel November 2, 2026Posted by Daniel Owens via Fulldisclosure on Nov 01Description The Apache Struts2 Core 7.4.0 and below performs session token comparisons cryptographically insecure early-exit comparison functions (e.g., `!=`, `memcmp`, byte-by-byte loops with `break`) that return as soon as the first mismatched byte is encountered. The execution time of the comparison is therefore proportional to the number […]
- Apache Struts2 Spring Plugin Uses a Previously Closed Resource November 2, 2026Posted by Daniel Owens via Fulldisclosure on Nov 01Description The Apache Struts2 Spring Plugin opens a Spring `ApplicationContex` via a try-with-resources block and, outside of said block, then continues to use the closed resource, resulting in an uncaught `IllegalStateException`. This particular issue prevents proper functionality and indicates poor code quality and code review standards and […]
- Apache Struts2 Core Integer Overflow November 2, 2026Posted by Daniel Owens via Fulldisclosure on Nov 01Description Apache Struts2 Core version 7.4.0 and below fails to properly prevent integer overflows, causing wrap-arounds and other issues on a downstream forced casting into types smaller than `BigInteger`. Importantly, this finding underscores why all applications using Struts and other such platforms should perform their own input […]
- Apache Struts2 Core Cross-Origin Protection Exemption Miskeyed to a Deployment-Wide Path November 2, 2026Posted by Daniel Owens via Fulldisclosure on Nov 01Description Apache Struts2 Core version 7.4.0 and below's `FetchMetadataInterceptor`, `CoepInterceptor`, and `CoopInterceptor` each compare their `exemptedPaths` configuration -- a per-interceptor-reference, administrator-supplied set of paths intended to exempt specific actions from the corresponding cross-origin protection -- against `HttpServletRequest.getContextPath()`. `getContextPath()` is fixed for the entire deployed web...
- Apache Struts2 REST Plugin Fails to Properly Parse Chunked Requests November 2, 2026Posted by Daniel Owens via Fulldisclosure on Nov 01Description The Apache Struts2 REST Plugin's (version 7.4.0 and below) `ContentTypeInterceptor.intercept(ActionInvocation)` only deserialises a request body and enforces the `struts.rest.content.maxLength` bound when `HttpServletRequest#getContentLength()` returns a positive value. `getContentLength()` returns `-1` whenever the `Content-Length` header is absent, which normal and appropriate for any Hypertext Transfer Protocol (HTTP)...
- Apache Struts2 REST Plugin Untrimmed `Accept` Header Tokens Break Content Negation Fallback November 2, 2026Posted by Daniel Owens via Fulldisclosure on Nov 01Description The Apache Struts2 REST Plugin's `DefaultContentTypeHandlerManager.getHandlerForResponse(HttpServletRequest, HttpServletResponse)` splits the `Accept` header on commas and passes each resulting token directly to `findHandler(String)` without trimming leading or trailing whitespace. `findHandler(String)` only retries a trimmed lookup when a token contains a semicolon (`;`), so a token that merely carries […]
- Apache Struts2 JSON Plugin Insecure Deserialisation -- Object Deserialisation Element-Count Limit Bypass November 2, 2026Posted by Daniel Owens via Fulldisclosure on Nov 01As of the current versions of the Apache Struts2 JSON Plugin (e.g., version 7.4.0 and the 7.5.0 snapshot dated 28 October 2026), attackers can bypass the element-count limit purported to protect Object deserialisation added to said code as part of the WW-5618 and S2-072 "hardening controls". Please […]
- [0day-rubbish] NETGEAR RAX120 V1.2.5.18 authenticated SOAP InstallApp OS command injection to root-configured web-stack execution (6.8 Medium; conditionally 7.2 High with management exposure) October 29, 2026Posted by disclosure via Fulldisclosure on Oct 280day Rubbish Research Team is publicly disclosing a vulnerability in NETGEAR RAX120 (Nighthawk AX12) firmware V1.2.5.18, the WiFi 6 consumer router from NETGEAR (United States), built on the Qualcomm IPQ8074 platform. The administrative web plane of this firmware generation is a lighttpd server fronting the vendor's DNI-framework CGI […]
- [0day-rubbish] Raritan PX3 PDU G4 firmware 4.3.14 command injection in the ping and traceroute diagnostics through an inverted hostname-validation return check (8.8) October 29, 2026Posted by disclosure via Fulldisclosure on Oct 280day Rubbish Research Team is publicly disclosing a vulnerability in the Raritan PX3 PDU G4, firmware version 4.3.14, the intelligent rack power distribution unit from Raritan, a Legrand company (United States). A low-privilege authenticated session converts one diagnostics request into operating-system command execution in the product's web-service context, […]
Customers
Twitter FEED
Recent activity
-
SecureOnlineDesktop
Estimated reading time: 6 minutes L'impatto crescente delle minacce informatiche, su sistemi operativi privati op… https://t.co/FimxTS4o9G
-
SecureOnlineDesktop
Estimated reading time: 6 minutes The growing impact of cyber threats, on private or corporate operating systems… https://t.co/y6G6RYA9n1
-
SecureOnlineDesktop
Tempo di lettura stimato: 6 minuti Today we are talking about the CTI update of our services. Data security is… https://t.co/YAZkn7iFqa
-
SecureOnlineDesktop
Estimated reading time: 6 minutes Il tema della sicurezza delle informazioni è di grande attualità in questo peri… https://t.co/tfve5Kzr09
-
SecureOnlineDesktop
Estimated reading time: 6 minutes The issue of information security is very topical in this historical period ch… https://t.co/TP8gvdRcrF
Newsletter
Products and Solutions
Partners
Cloud Models
News
- From Cyberfero to Cyberfero: rebranding of the leading cybersecurity company May 6, 2024
- NIS: what it is and how it protects cybersecurity April 22, 2024
- Advanced persistent threats (APTs): what they are and how to defend yourself April 17, 2024
- Penetration Testing and MFA: A Dual Strategy to Maximize Security April 15, 2024
- Penetration Testing: Where to Strike to Protect Your IT Network March 25, 2024
Google Reviews
Ottima azienda, servizi molto utili, staff qualificato e competente. Raccomandata!read more
Ottimo supportoread more
E'... un piacere poter collaborare con realtà di questo tiporead more
Un ottimo fornitore.
Io personalmente ho parlato con l' Ing. Venuti, valore aggiunto indubbiamente.read more
About
© 2024 Cyberfero s.r.l. All Rights Reserved. Sede Legale: via Statuto 3 - 42121 Reggio Emilia (RE) – PEC [email protected] Cod. fiscale e P.IVA 03058120357 – R.E.A. 356650 Informativa Privacy - Certificazioni ISO