Entries Categorized as 'How-To’s'
Author:
erics, September 9th, 2021
The aws s3 sync command is slow and painful! I needed a more efficient way to sync to large buckets (prod to dev). Finally settled on RClone: https://rclone.org/docs/
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cd {extracted zip dir} ./rclone config cat ~/.config/rclone/rclone.conf |
During rclone config I called remote “s3” ;-}
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./rclone sync -v --progress --fast-list --checksum s3:wyzaerd-demo-prod s3:wyzaerd-demo-dev |
Categories: How-To's, Technology Tags: AWS, Bucket, howto, rclone, rsync, S3, s3s3, s3s3mirror, Sync, tips
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Author:
erics, September 1st, 2021
There are three commands in Linux to easily get a reverse DNS lookup with: dig, host and nslookup. Here are examples of each: shell> dig -x 3.214.2.238 +short
shell> dig -x 3.214.2.238
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; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.68.rc1.86.amzn1 <<>> -x 3.214.2.238 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 19300 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;238.2.214.3.in-addr.arpa. IN PTR ;; ANSWER SECTION: 238.2.214.3.in-addr.arpa. 300 IN PTR ns3.wyzaerd.info. ;; Query time: 8 msec ;; SERVER: 10.0.0.2#53(10.0.0.2) ;; WHEN: Wed Sep 1 19:43:56 2021 ;; MSG SIZE rcvd: 72 |
shell> host 3.214.2.238
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238.2.214.3.in-addr.arpa domain name pointer ns3.wyzaerd.info. |
shell> nslookup 3.214.2.238
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Server: 10.0.0.2 Address: 10.0.0.2#53 Non-authoritative answer: 238.2.214.3.in-addr.arpa name = ns3.wyzaerd.info. |
Categories: How-To's, Technology Tags: cli, Command, Command line, dig, dig -x, DNS, Host, howto, lookup, nslookup, Reverse, Reverse DNS, tips
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Author:
erics, August 12th, 2021
My /etc/rc.local was not loading at boot time. rc.local is a symlink to /etc/rc.d/rc.local lrwxrwxrwx 1 root root 13 Jun 22 2020 rc.local -> rc.d/rc.local I had to execute the following:
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chmod a+x /etc/rc.d/rc.local |
Categories: How-To's, Technology Tags: boot, howto, Init, rc.local, Start, tips
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Author:
erics, August 12th, 2021
vi /etc/postfix/main.cf
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#inet_protocols = all inet_protocols = ipv4 |
service postfix restart
Categories: How-To's, Technology Tags: Email, Error, Gmail, howto, IPv4, IPv6, PostFix, Protocol, tips
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Author:
erics, August 4th, 2021
I wanted to use the same SSH keys for multiple AWS regions. As it turns out, AWS simply stores the public key when you download the private key as a .pem file. The solution is to simply generate the public key locally from the existing .pem, then import the public key using the same name […]
Categories: How-To's, Technology Tags: Amaon, AWS, Copy Key Pair, howto, key-pair, KeyPair, Linux, ssh-keygen, tips
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Author:
erics, July 29th, 2021
SUMMARY: Needed to create an AWS IAM Policy to allow a user access to create and delete EBS snapshots. This script also needed to be able to list volumes:
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{ "Version": "2012-10-17", "Statement": [ { "Sid": "VisualEditor0", "Effect": "Allow", "Action": [ "ec2:DeleteSnapshot", "ec2:ModifySnapshotAttribute", "ec2:CreateSnapshots", "ec2:ResetSnapshotAttribute", "ec2:CreateSnapshot" ], "Resource": [ "arn:aws:ec2:*:ACCOUNT_ID_HERE:volume/*", "arn:aws:ec2:*:ACCOUNT_ID_HERE:snapshot/*", "arn:aws:ec2:*:ACCOUNT_ID_HERE:instance/*" ] }, { "Sid": "VisualEditor1", "Effect": "Allow", "Action": [ "ec2:DescribeSnapshotAttribute", "ec2:DescribeVolumes", "ec2:DescribeSnapshots" ], "Resource": "*" } ] } |
Categories: How-To's, Technology Tags: Amazon, AWS, Create, Delete, howto, IAM, JSON, Policy, Snapshot, tips, User, volume
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Author:
erics, July 29th, 2021
I was getting error “You must specify a region” when running any aws CLI command. The fix: Using the aws command:
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aws configure set region us-east-1 --profile demo |
which will automatically add the following to the file ~/.aws/config:
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[profile demo] region = us-east-1 |
You many simply edit the ~/.aws/config file yourself and append the same thing:
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vi ~/.aws/config [profile demo] region = us-east-1 |
Categories: How-To's, Technology Tags: AWS, aws cli, aws command, aws configure, aws set, cli, Command, Config, configure, Error, Region, You must specify a region
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Author:
erics, July 28th, 2021
SUMMARY: Needed to create an AWS IAM Policy to allow a user access to two buckets and their associated CDN’s in WordPress W3 Total Cache
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{ "Version": "2012-10-17", "Statement": [ { "Sid": "VisualEditor0", "Effect": "Allow", "Action": "s3:ListBucket", "Resource": "arn:aws:s3:::wyzaerd-demo-prod" }, { "Sid": "VisualEditor1", "Effect": "Allow", "Action": [ "s3:PutObject", "s3:GetObject", "s3:DeleteObject", "s3:PutObjectAcl" ], "Resource": "arn:aws:s3:::wyzaerd-demo-prod/*" }, { "Sid": "VisualEditor2", "Effect": "Allow", "Action": "s3:ListBucket", "Resource": "arn:aws:s3:::wyzaerd-demo-dev" }, { "Sid": "VisualEditor3", "Effect": "Allow", "Action": [ "s3:PutObject", "s3:GetObject", "s3:DeleteObject", "s3:PutObjectAcl" ], "Resource": "arn:aws:s3:::wyzaerd-demo-dev/*" }, { "Sid": "VisualEditor4", "Effect": "Allow", "Action": [ "s3:ListAllMyBuckets", "cloudfront:ListDistributions" ], "Resource": "*" } ] } |
Categories: How-To's, Technology Tags: Amazon, AWS, Bucket, CDN, CloudFront, howto, IAM, JSON, Policy, S3, tips, User, W3 Total Cache
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Author:
erics, July 27th, 2021
Current Session:
All Sessions: Add the following to your ~/.vimrc file:
Categories: How-To's, Technology Tags: Automatic, Disable, Disable Visual, howto, Mouse, tips, vi, vim, Visual, Visual Mode
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Author:
erics, July 22nd, 2021
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 Tags: ID, JQuery, Long, Match, onclick, Replace, Script
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