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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...
Postfix queue file size limit exceeded – Quick fix!
Is your server reporting Postfix queue file size limit exceeded error? This can be simply resolved by changing the message size limit in the config file. Mails are so crucial today and so are the mail errors. Hence, at Bobcares we provide an immediate fix for Postfix...
Asp.net Provider 80004005 Unspecified error – Fixed
Asp.net Provider 80004005 Unspecified error can be a pain unless fixed. It appears all of a sudden making website features inaccessible. The typical causes include unresponsive databases, insuficients permissions, etc. At Bobcares, we often get requests to solve such...
ufw block ping – Quickest way
Want to block ping in servers using UFW? Enabling ping on the server can make the server prone to attacks like Ping flood, Ping of death, etc. Fortunately, UFW has user-friendly options to block PING requests on the server. At Bobcares, we often receive requests...
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Best way to fix – InnoDB memory heap is disabled
InnoDB works as a better option when dealing with large databases. However, often misconfiguration in the InnoDB settings results in errors. Older MySQL versions report error "InnoDB memory heap is disabled" when the InnoDB uses System memory. At Bobcares, we receive...
SMTP error 452 – Top 4 tried and tested fixes
Are you getting SMTP error 452 when sending mails? The 452 too many recipients error mainly happens due to message overload. When we try to send too many emails at once, the server storage limit exceeds and results in this error. At Bobcares, we often receive requests...
How to run IIS multiple websites on port 80
Web hosts need to accommodate multiple websites on a single server for a cost-effective approach. But, can we run IIS multiple websites on port 80 of the server? Fortunately, with the help of the host header in IIS web server, we can host multiple sites and use the...
VPN error 800 VPN tunnels failed – Top 5 causes and fixes
VPN is a quick way to ensure a secure connection to the server. However, it often shows errors like VPN error 800: VPN tunnels failed. Usually, VPN error 800 occurs due to incorrect server details, network or connectivity errors, firewall restrictions, etc. So, at...
Rsync error code 23 – How we sort it out?
Rsync error: some files could not be transferred (code 23). Got this error message and looking for a fix? Basically, the rsync error code 23 denotes 'partial transfer due to error'. This happens due to file permission problems. At Bobcares, we often get requests to...
How to unblock IP in DirectAdmin – The quick way!
IP blocks are always frustrating when it denies access to your DirectAdmin server. Such security restrictions protect the server from unauthorized logins, hack attempts, etc. To regain access, users need to know how to unblock the IP in DirectAdmin. At Bobcares, we...
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