Everyday, around 30,000 websites are getting hacked (source Sophos Lab). You wouldn’t want your business to be one among them. With new malware and threats emerging on a daily basis, one should always be on a constant alert.

By hiring an expert server security services, you can prevent a security attack before it strikes your servers. Bobcares helps server owners protect their servers from all sorts of exploits.

See how our server security services help you!

Our customers are able to focus on their core business without losing their peace of mind over server issues. Here, we’ll see the major security tasks we do, that help us provide a 360 degree comprehensive security to servers.

How we ensure 360 degree protection with our server security services

The main aim of a server security process is to secure your servers from all sorts of attacks and malware. This include 24/7 monitoring of vulnerable processes and attacks and periodic server audits to detect any breach.

1. Network security

Network is an easy entry point for attackers. The first thing we do is to secure the server network by blocking all unwanted ports from being accessed from external network.

We design network systems by segregating confidential data from the public network. By adjusting the network settings, we harden it against major attacks such as SYN flood, DDOS attack, etc.

We monitor the network traffic regularly and block attacking IPs and port scanning attempts. With the help of firewalls and other tools, we prevent direct access to back-end servers.

Other security tasks we perform include blocking spoofed and malformed connections, rate limiting ping packets, blocking blacklisted IPs, and so on, to avoid attacks.

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2. In-depth server hardening

Here, we cover everything from user account protection to file system security. We secure user accounts with strong passwords that expire periodically and by enforcing secure user access policies.

By configuring SSL/TLS in all server services, we protect the user data and credentials being sniffed out by hackers. Using secure authentication systems like Kerberos is another way we foil sniffing attacks.

Other security tips include IP restriction for administrator access, using 2 factor authentication, locking account after multiple login failures and exercising other security practices.

The file system is further secured by controlling the access privilege of each user, restricting privilege execution of scripts and blocking malware execution in vulnerable directories such as /tmp.

System binaries are protected against unauthorized modifications that can lead to system infection. We also protect your operating system boot image against all malware infection.

3. Web server security

Web server is the most exposed service in any server. This makes it vulnerable to a wide range of attacks that can affect the web applications and related databases.

We configure Web Application Firewalls (WAFs) and malware scanners to block such attacks. All known attack patterns are blocked and signature databases are used to block all the common attacks.

With customized security rules such as mod-security, we restrict web operations to only the required ones. All processes and uploads are scanned in real-time to detect and block any malicious ones.

Securing the web server configuration is done to protect it, by preventing information disclosure, limiting privileges of web user, disabling obsolete and insecure modules, etc.

Limiting per-user resource allowance helps to prevent a single user abusing the whole web server. We also restrict user permissions to prevent one user from seeing another user’s data.

Deleting malicious files, enabling DDoS protection, enforcing SSL encryption for connections, using server hardening patches, etc. are some major activities we do to protect the web servers.

In addition, we monitor web traffic and log files for anomalies, keeping the software updated and with latest security patches. This helps us to prevent any malware from affecting these servers.

4. Database server hardening

Database forms a critical part of server as it stores many vital information. We tweak the database server to enable it to withstand information disclosure attacks.

Restricting user privileges, securely storing databases and backups, all these play a vital role in database server security. Enforcing strong passwords and restricting connections are other critical aspects.

DNS, SMTP, POP/IMAP, Remote Desktop, SSH, SSL, FTP, etc. are other critical services in the server which we secure as a part of our server security services.

5. Application isolation

Many companies run multiple web applications in a single server. This can include critical business website and also outdated 3rd party software, all in the same premises.

A single vulnerability in one of these applications can get all these sites infected with malware. So, application isolation is one best practice we implement in servers, where critical applications are run in a different server environment.

With the help of virtualization technology such as containers, we are able to bring about the application isolation without incurring much costs. By segregating system and user files, we prevent navigation from user directories to system directories.

6. Linux kernel hardening

Linux servers are comparatively secure, but not 100% free from exploits. Outdated Linux kernels can easily give attackers, root access to the entire server and wipe it all off.

We use kernel hardening patches to protect against common exploits such as buffer overflows, path name attacks, privilege escalation, etc.

With the help of Mandatory Access Control systems such as SELinux or AppArmor, we prevent users from doing any action other than what’s absolutely needed for their service.

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7. Software updates

Every server contains a range of software – server software and application software. All these software should be kept updated always, as vulnerable software is the most popular way for hackers to gain access to a server.

We conduct periodic scan of software versions and set update notifications to detect outdated software and update them promptly, without causing any downtime.

With the help of security patches, we fix any vulnerability as soon as it is released. Our 24/7 server security experts subscribe to all major security channels to stay alert always regarding these exploits.

8. Fool-proof backup system

A backup plan is crucial to restore your server data and services in case of a calamity. An unexpected hard disk crash can cause all data to be lost. To quickly recover from such an event, we have a fool-proof server backup system.

To ensure latest backups are available, we take daily backups and reduce load on the server by taking incremental backups. For business continuity, we keep off-site backups.

The backups are restricted to avoid any data theft and backup process is monitored regularly for adequacy and completeness. With test backup restore processes, we ensure that the backups will work when needed.

9. 24/7 monitoring

Our server security services include monitoring the server for security issues round the clock. With the help of notifications and system logs, we immediately detect and resolve all critical server events before they affect the business.

Some of the parameters we monitor include file access, login attempts, critical events, unusual log entries, command logging, spamming and blacklisting events, etc.

This proactive monitoring in addition to service failures and server resource and health check notifications, helps us to pinpoint and prevent any issue in the server.

10. Periodic server audits

Security is a never-ending process. New software vulnerabilities can get released on a daily basis. Attackers constantly find new ways to breach security, which is why it is important to audit your server defences periodically.

We perform periodic server audits to ensure that the server software is updated, all vulnerabilities are patched, outdated application software are taken care of, and so on.

We analyze all critical server events and alerts and take prompt actions to avoid any attack or downtime. Examining the access log and critical server logs help us to get insight into any malicious activity.

By conducting backup restore tests, performance test, security test, etc., we confirm that the server defences can stand up to new forms of attack as disclosed in security channels.

With the help of malware scanning tools, antivirus utilities, web application firewalls, web traffic scan, etc. we do a detailed screening of all incoming and outgoing network traffic to block hack attempts.

If you’d like to know how you can better serve your customers with our 24/7 efficient Linux server management services, we’d be happy to talk to you.