Entries Categorized as 'Technology'
Author:
erics, October 7th, 2021
On Sept 30th 2021 Let’s Encrypts previous root certificate DST Root CA X3 (and it’s R3 intermediate) will expire. It has been replaced by their ISRG Root X1 certificate (and replacement R3 intermediate). The version of the R3 intermediate signing certificate which chains to DST Root CA X3 expired September 29 19:21:40 2021 GMT. The […]
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Author:
erics, September 22nd, 2021
vi wp-config.php Add at the bottom:
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define(‘WP_DEBUG’, true); define(‘WP_DEBUG_LOG’, true); define(‘WP_DEBUG_DISPLAY’, true); ini_set(‘display_errors’, 1); ini_set(‘display_startup_errors’, 1); error_reporting(E_ALL); |
You can also use this URL in later versions: /wp-login.php?action=entered_recovery_mode
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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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