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Stay informed and inspired with our blogs to navigate and resolve any technical challenges that you may encounter.
YUM PycURL error 22 – Here’s the possible reasons and its fixes
Are you getting yum PycURL error 22 in between an important update? Yum errors always need an immediate fix as it affects package management in the servers. At Bobcares, we often get requests to fix yum errors, as a part of our Server Management Services. Today, let's...
Segmentation fault Git – Let’s fix it!!
Have you ever wondered why segmentation fault Git occurs? Usually, segmentation fault in Git happens due to program corruption, SD card corruption, use of software from incompatible repositories, etc. At Bobcares, we often receive requests to solve these segfaults as...
Host key verification failed sftp – How to resolve?
Are you getting Host key verification failed sftp error? Often, the users may get this error while attempting to connect using SFTP to the host server. Unfortunately, the error occurs due to the mismatch of the private key from the list of known hosts files, which...
HTTP Error 502.5 – Process Failure – Here is the perfect fix
Struggling with HTTP Error 502.5 - Process Failure error on your website? ASP.NET platform helps to create and develop web applications effectively. However, process failure error happens when the ASP.NET application fails to run on the server. At Bobcares, we get...
Postfix deferred queue – How we make mail work!
Too many mails in Postfix deferred queue can make your server slow. But it's quite easy to clear this deferred queue and make the mail server working again. At Bobcares, we get many requests related to the Postfix mail queue, as a part of our Server Management...
VirtualBox failed to import appliance – Top 4 Causes and Fixes
Failed to import appliance in Virtualbox? In VirtualBox, virtual machines are referred to as appliances. Virtualbox supports disk image files such as VDI, VMDK, VHD, and HDD. At Bobcares, we often get requests from our customers regarding VirtualBox as part of our...
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509 bandwidth limit exceeded – Possible ways to avoid it
Is your website showing 509 bandwidth limit exceeded message? It just indicates that your website traffic is too high that the host cannot allow. This too has a simple fix, free up some bandwidth always. Usually, we do this by upgrading the hosting plan, reduce file...
IPTables NAT Masquerade – How we do it?
Ever wondered how private networks can share a single public IP without breaking a sweat? Enter iptables NAT masquerade, a powerful tool that makes this possible. Essentially, it functions as a router, cleverly hiding the access of private networks while sharing a...
Postfix error mail transport unavailable – How we figured it out
There are lots of undelivered outgoing emails in my server and I see an error message as Postfix error mail transport unavailable! . What I need to do? One of the typical postfix errors which creates a problem for many of our customers. Mail transport unavailable...
Fail2ban ignoreip – Easy way to whitelist trusted IPs
Fail2ban ignoreip is a default feature to whitelist trusted IPs. Usually, fail2ban bans IPs that are suspicious while monitoring logs. But if the user wants to whitelist a trusted IP, we edit ignoreip in the conf file. At Bobcares, we use fail2ban to whitelist IPs, as...
Fail2ban blacklist IP – Easy way to do it!!
Have you ever wondered how fail2ban blacklist IP? Fail2ban protects our server mainly from brute-force attacks. It bans suspicious IP addresses in the server firewall. At Bobcares, we often receive requests to blacklist IP addresses as part of our Server Management...
Moodle SMTP error could not authenticate- Quick Resolution!!
Are you frustrated with "Moodle SMTP error could not authenticate"? Though moodle comes with many standard features, it is never free of errors. An SMTP authentication error is a tricky moodle error. This occurs mainly due to errors in SMTP fields in moodle...