A dedicated server typically runs several background services or daemons. These may include but are not limited to your web server, database server, and mail server. All of these services need to be running 24/7 to keep them available for your users. When one of the services goes down, you need to know. Webmin has […]
Top is a handy little tool that allows you to view frequently updated information about your Linux server from load average to free memory. By default, top refreshes every three seconds, giving you near real-time monitoring of CPU and memory usage, top running processes, and more.
Normally, you need to run top from the console, […]
Colocation services are on the rise, and according to many reports, many companies have found it more beneficial to outsource their IT services, including their dedicated servers, to managed service providers. Whether you outsource your systems to the cloud or simply house your own servers at an off-site facility, there are many reasons to choose […]
There was a time when pride dictated that a system administrator manage a Linux server with nothing more than a text-only terminal window and a cup of coffee. Times have changed, especially since even major enterprises need to manage their Linux servers quickly and effectively. The following are four useful server management options with varying […]
Whether you have your own data center or intend to use the facilities owned by another company, monitoring is something that should be on your mind. Just as a server needs routine monitoring to make sure it is running smoothly and free from threats, data centers should also have sophisticated monitoring systems in place.
When shopping […]
One of the important things you can do with a dedicated server is to check it to ensure it is running smoothly and not experiencing any hidden problems. On Linux and Unix servers, log files can provide vital information about key components of your server. The following log files are ones you should routinely check:
Shared hosting is a type of web hosting where multiple users share the same server. If you have a dedicated server, you might offer shared hosting accounts to your users who need hosting accounts with their own domains but are not ready for a VPS or dedicated server of their own.
Because shared hosting users have […]
In a perfect world, we would always have unlimited refills, unlimited anytime minutes, and unlimited bandwidth. In reality these things are finite, and nothing lasts forever. Bandwidth is not horribly expensive, but if you have your own dedicated server, you are definitely paying for it. Anytime you offer hosting or other services to your clients, […]
Linux servers, regardless of the distribution, all share a common thread that system administrators know about and use to monitor the server and troubleshoot hardware. That commonality is /proc, a truly unique and special file system that can give you all sorts of wondrous information about your dedicated server.
The proc filesystem is mounted at boot […]
Under many scenarios, you may never allow other users to login to your Linux server, and you can still function successfully. In rare cases, however, you might need to give certain users SSH accounts to allow them limited access to command line functions within a chroot jail. In those situations, you need a […]
It’s dead. After all the effort you put in your server, even choosing it over your spouse, there was nothing you could do to save it. Whether it was hardware failure, a massive and crippling cyber attack, or simply a colossal user error, the moment you always dreaded has come to pass: a […]
Your mother probably once told you, “If it ain’t broke, don’t fix it.” For many things, that is true, but if you think your dedicated server will always be running as smoothly as it might be right now, you are fooling yourself. When everything is going well, that is the time to take care of […]
Many system administrators do not take sufficient steps to protect their server’s network. In some cases, they install the firewalls and other automated defenses, but they do not take steps to monitor the network the way that they monitor system services, users, and other dedicated server elements.
To properly ensure your network stays as safe as […]
Monitoring your dedicated server is a good way to prevent attacks, crashes, and other problems that invariably creep up. Although there are many external tools to help you monitor your server, Linux-powered servers also have plenty of internal tools that can help you with both monitoring and troubleshooting.
Netstat is a small network tool that can […]
Over the past two weeks, we have covered a few ways to monitor your Linux dedicated server, from the CPU usage of processes to website bandwidth. In order to get a true understanding of how your server is using or misusing resources, however, you need to use multiple monitoring tools, namely: vmstat, iostat, netstat, […]
Bandwidth is not free, and if you were to believe everything ISPs said, you might believe a war over bandwidth will be as violent as one fought over oil. With ISPs throttling bandwidth, and hosting companies fighting for every last cent of bandwidth, it is no surprise that the word bandwidth can strike fear […]
If you run your own dedicated server, you might also have clients or hosting customers who purchase services from you. If you host websites, you probably do not spend a great deal of time visiting each client’s site, but you may have some form of monitoring in place. This raises many questions. […]
SSH (Secure Shell) is a powerful tool for dedicated server management. With it, you can remotely log into your server and manage nearly every application, service, and website. On Unix and Linux operating systems, SSH usually comes installed by default, with one SSH-enabled user.
Under normal circumstances it is safer to only have that […]
Although this may be difficult, the first thing to do is to remember not to panic. Staying calm will go a long way in making sure you can resolve the issue quickly and calmly. When operating a server remotely, your only assurance that a server is running is through its websites and through […]