R.I.P George
erics, Posted on Wednesday, July 28th, 2021 at 12:17:27pm
Categories: Fine Dining death, Dorset Inn, George, Rip | 
No comments
erics, Posted on Wednesday, July 28th, 2021 at 12:17:27pm
How To Disable VIM Mouse Automatic Visual Mode
erics, Posted on Tuesday, July 27th, 2021 at 11:46:27am
Current Session:
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:set mouse-=a |
All Sessions:
Add the following to your ~/.vimrc file:
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set mouse-=a |
Categories: How-To's, Technology Automatic, Disable, Disable Visual, howto, Mouse, tips, vi, vim, Visual, Visual Mode | No comments
R.I.P. Jackie Mason
erics, Posted on Sunday, July 25th, 2021 at 8:22:44am
Famed Borscht Belt comedian Jackie Mason, who rose from a modest childhood on the Lower East Side to become one of the most famous funnymen of all time, has died. He was 93.
Categories: Entertainment death, Jackie Mason, Mason, Rip | No comments
How To Match Complex Element IDs In jQuery
erics, Posted on Thursday, July 22nd, 2021 at 1:36:59pm
PROBLEM: An element ID that looked like this would fail to match:
service = east
node = db1-demo.thedomain.com
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<div style="width: 50px; height: 50px; background: #00aa00; color: #000;" id="Div-node-notes-east-db1-demo.thedomain.com">Content to hide and show here</div> <a href="#" onclick="jQuery('#Div-node-notes-'+service+'-'+node.toggle();return false;">Toggle Div</a> |
SOLUTION: Rig any special characters in the complex hostname (:.[],-@) with a backslash in front of them to ensure proper matching:
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<script> var G={}; G.cleanid = function(myid) { return myid.replace( /(:|\.|\[|\]|,|=|@)/g, "\\$1" ); } </script> <div style="width: 50px; height: 50px; background: #00aa00; color: #000;" id="Div-node-notes-east-db1-demo.thedomain.com">Content to hide and show here</div> <a href="#" onclick="jQuery('#Div-node-notes-'+service+'-'+G.cleanid(node).toggle();return false;">Toggle Div</a> |
Categories: How-To's, Technology ID, JQuery, Long, Match, onclick, Replace, Script | No comments
How To Count Lines In A String Variable Using Perl
erics, Posted on Tuesday, July 20th, 2021 at 12:56:33pm
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my $count = () = $string =~ /\n/g; |
Categories: How-To's, Technology Count, howto, Newline, perl, String, tips, Var, Variable | No comments
How To Fix Email Service Unavailable Delivery Issues with IPv6 on Amazon Linux
erics, Posted on Friday, July 16th, 2021 at 2:30:23pm
PROBLEM: Email delivery to Google was failing with a “Service Unavailable” error:
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relay=aspmx.l.google.com. [IPv6:2607:f8b0:400d:c0c::1a], dsn=5.0.0, stat=Service unavailable |
Note that the network address for the destination is shown as IPv6!
That is the root cause of the issue:
1. Sendmail is sending mail from the IPv6 address instead of the IPv4 address
2. Google rejects IPv6 senders without proper reverse DNS lookup or SPF records
SOLUTION:
Configure sendmail to use the IPv4 address family and pattern:
APPEND TO: sendmail.mc
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CLIENT_OPTIONS(`Family=inet6,Addr=::ffff:0.0.0.0')dnl |
EXECUTE: /etc/mail/make
EXECUTE: service sendmail restart
Categories: How-To's, Technology Amazon, Amazzon Linux, AWS, Delivery, DSN, Email, howto, IPv4, IPv6, Linux, make, Restart, SendMail, sendmail.cf, sendmail.mc, service, Service Unavailable, SPF, tips, Unavailable | No comments
How To Preserve Line Breaks When Storing Command Output To A Shell Variable
erics, Posted on Wednesday, July 14th, 2021 at 3:23:26pm
Solution: “Double Quote” your variables!
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shell> myvar="abc def ghi" shell> echo $myvar abc def ghi shell> echo "$myvar" abc def ghi |
Categories: How-To's, Technology Capture, Command, Command Output, howto, Keep, line break, Line Breaks, Preserve, Store, Storing, tips, Variable | No comments
How To Fix Stuck WordPress Maintenance Mode
erics, Posted on Thursday, July 8th, 2021 at 9:21:10pm
ERROR: Briefly Unavailable for Scheduled Maintenance. Check Back in a Minute
CAUSE: WordPress did not complete an action
SOLUTION: Either
– remove ~/wordpress/.maintenance
– edit ~/wordpress/wp-activate.php and set define( 'WP_INSTALLING', false );
Categories: How-To's, Technology howto, Hung, Maintenance, Stuck, tips, WordPress, WP_INSTALLING | No comments
How To Change Your GIT Name and Email Address Globally and Per Repository
erics, Posted on Thursday, June 17th, 2021 at 12:45:23pm
To update your git user name and email address for all repos:
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git config --global user.name "Your Name" git config --global user.email "yourName@theDomain.com" |
To update your git user name and email address for a specific repo:
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cd repo git config user.name "Your Name" git config user.email "yourName@theDomain.com" |
Categories: How-To's, Technology Change, Email, git, Global, howto, local, name, Repo, repository, tips, user.email, user.name | No comments
How To Count Strings Inside Another In Perl
erics, Posted on Wednesday, June 16th, 2021 at 12:19:06pm
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my $needle = 'foo'; my $haystack = 'foo foo foo'; my @count = $haystack =~ /$needle/g; my $count = scalar @count; print "$count\n"; |
Should result in 3
Categories: How-To's, Technology Count, HayStack, howto, Needle, perl, Scalar, String, tips | No comments
