Linux

Infopackets Reader Steve T. writes: " Dear Dennis, I am running Centos 6 32-bit (i386) on a virtual machine and recently I started having 'PYCURL ERROR 22' every time I use 'yum list updates' or 'yum -y update' to list and download updates. The ... error message says ' [Errno 14] PYCURL ERROR 22 - The requested URL returned error: 404 Not Found '. I have gone to the wiki.centos.org/yum-errors as the error message suggests, but have not been able to find a solution to this problem. Can you help? " My response: I asked Steve if he would like me to connect to his virtual machine using my remote ... (view more)

Infopackets Reader Sam G. writes: " Dear Dennis, I came across your website while researching a postfix question. I am also a Linux systems administrator. As of late our organization has been bombarded with scam emails from 'hackers' purporting to ... have hacked our email accounts and PCs, and are demanding $800 in the form of bitcoin ('hush money') to keep things quiet. Is there any way to block all emails with bitcoin wallet requests? I would say 9.9 times out of 10, any bitcoin wallet money request through email is a scam. " My response: For the record this same bitcoin scam email is being ... (view more)

Infopackets Reader Martin R. writes: " The email newsletter I receive from you is showing in my gmail as "unencrypted," with a red pad lock . There is also a new warning banner that says: 'Be careful with this message. It contains content that's ... typically used to steal personal information.' The options are: learn more, report this suspicious message, ignore, or 'I trust this message.' This is not the only email I get that shows as unencrypted. What does this mean and how can it be fixed? " My response: Essentially it means that the mail you received (at gmail) was not sent using email ... (view more)

Infopackets Reader Steve V. writes: " Dear Dennis, I came across your post on screenconnect.com, entitled ' Mono eating too much memory (Linux) ' and am having the same issue. It seems that ScreenConnect is uncontrollably eating memory - for ... example, when I click on client previews, the mono process eats 300mb+ of RAM and will continue to do so for each click. Surely this is not right! At this point I receive 'Internal error' on my ScreenConnect browser control panel (where I can view my clients). Ultimately, /var/log/messages reports 'Out of memory: Kill process xxxx (mono) score xxx or ... (view more)

Infopackets Reader Steve P. writes: " Dear Dennis, The company I work for is renting a dedicated Linux web server, which runs CentOS 6.5 and PHPList to manage their mailing list. Recently we were faced with a power outage on the server which then ... caused corruption in the PHPList database. When I look at mysqld.log I see a lot of error messages that 'mysqld: Table './phplist/phplist_usermessage' is marked as crashed and should be repaired'. I checked the database drive for errors using 'e2fsck -n /dev/sdb1' and am getting an error message that '/dev/sdb1: ********** WARNING: Filesystem still ... (view more)