Author:
erics, Posted on Tuesday, May 23rd, 2023 at 8:23:49am
In the macOS Terminal, my mouse scroll wheel would magically start scrolling the command line history instead of the window buffer scroll bar on the right to show window history.
This happened when an SSH session was disconnected or timed out.
The fix is to run the reset command.
Categories: How-To's, Technology Tags: apple, bash, cli, Command line, Disconnect, History, howto, MacOS, Mouse, Scroll, Shell, ssh, Terminal, Timeout, tips | 
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Author:
erics, Posted on Friday, May 19th, 2023 at 10:37:58am
I was unable to login from my old iMac running Yosemite to my new iMac running Ventura using RSA keys.
It turns out that RSA key support was disabled in Ventura.
To correct the problem, I added the following two lines to the bottom of /etc/ssh/sshd_config:
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HostkeyAlgorithms +ssh-rsa PubkeyAcceptedAlgorithms +ssh-rsa |
Categories: How-To's, Technology Tags: denied, HostKeyAlgorithms, howto, key, login, MacOS, OSX, Permission, Pubkey, PubkeyAcceptedAlgorithms, PublicKey, RSA, ssh, sshd, tips, Ventura, Yosemite | No comments
Author:
erics, Posted on Tuesday, May 9th, 2023 at 9:55:13am
I have been using RSA SSH keys forever to login to my various AWS EC2 instances.
With macOS Ventura 13.3.1 ssh failed with the “Permission Denied” error. Using ssh -vvv, I saw that the RSA key was now being rejected.
After much research, I decided to implement new keys on the client (Ventura) side using ed25519, like this:
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cd ~/.ssh ssh-keygen -t ed25519 cat id_ed25519.pub |
I then placed the new id_ed25519.pub contents into the ~/.ssh/authorized_keys files on the target nodes, and everything started working!
Categories: How-To's, Technology Tags: AWS, denied, ed25519, Error, Generate, howto, key, Linux, MacOS, Permission Denied, public, Public Key, ssh, ssh-keygen, sshd, tips, Ventura | No comments
Author:
erics, Posted on Friday, May 5th, 2023 at 12:59:06pm
I have a new iMac running macOS Ventura 13.3.1.
I tried to rsync some files from another host and got the following error:
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rsync -av --progress --exclude=Recordings/ neptune:/Users/erics/Documents/ /var/root/tmp/Documents/ receiving file list ... rsync: opendir "/Users/erics/Documents/." failed: Operation not permitted (1) |
In order to get rsync to have access to the hard drive in macOS Ventura, you need to add rsync and other programs to the Full Disk Access panel under Privacy & Security in System Settings.
First click on System Settings
Next locate Privacy & Security at the bottom of the same block as General in the left menu bar and click on it
Next, click on Full Disk Access
Then open a Finder window and navigate to the top-level ‘Macintosh HD’ and look for the usr directory, select it, then select bin. Finally, drag & drop the rsync command into the Full Disk Access window in true Apple style.
Finish adding all of the below commands and rsync will work
This is the list of files to add via Drag & Drop to the Full Disk Access panel under Privacy & Security:
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/Applications/Utilities/Terminal.app /usr/sbin/sshd /usr/sbin/smbd /usr/bin/ssh-agent /usr/bin/rsync /usr/libexec/sshd-keygen-wrapper |
Categories: How-To's, Technology Tags: apple, howto, Mac, MacOS, Privacy, rysnc, security, ssh, sshd, tips, Ventura | No comments
Author:
erics, Posted on Tuesday, May 2nd, 2023 at 7:14:02am
Born: November 17, 1938, Orillia, Canada
Died: May 1, 2023, Sunnybrook hospital, Toronto, Canada, 84 years old
Categories: Death, Entertainment Tags: death, Gordon, Lightfoot, Rip | No comments
Author:
erics, Posted on Monday, April 17th, 2023 at 9:51:50am
First, use the AWS Console to modify the volume to the desired size, in our example we want to go from 10GB to 25GB for the root filesystem
For a Xen ext4 root volume
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# df -h Filesystem Size Used Avail Use% Mounted on /dev/xvda1 9.8G 9.6G 26M 100% / /dev/xvdf 200G 99G 102G 50% /volumes/data # lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT xvda 202:0 0 10G 0 disk └─xvda1 202:1 0 10G 0 part / xvdf 202:80 0 200G 0 disk /volumes/data # growpart /dev/xvda 1 CHANGED: disk=/dev/xvda partition=1: start=4096 old: size=20967390,end=20971486 new: size=52424670,end=52428766 # lsblk lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT xvda 202:0 0 25G 0 disk └─xvda1 202:1 0 25G 0 part / xvdf 202:80 0 200G 0 disk /volumes/data # resize2fs /dev/xvda1 resize2fs 1.43.5 (04-Aug-2017) Filesystem at /dev/xvda1 is mounted on /; on-line resizing required old_desc_blocks = 1, new_desc_blocks = 2 The filesystem on /dev/xvda1 is now 6553083 (4k) blocks long. # df -hT Filesystem Type Size Used Avail Use% Mounted on /dev/xvda1 ext4 25G 9.6G 15G 40% / /dev/xvdf xfs 200G 99G 102G 50% /volumes/data |
For NVMe
First, use lsblk to see the raw partitions:
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# df -hT Filesystem Type Size Used Avail Use% Mounted on /dev/nvme0n1p1 xfs 20G 2.8G 18G 14% / # lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT nvme0n1 259:0 0 40G 0 disk ├─nvme0n1p1 259:1 0 20G 0 part / └─nvme0n1p128 259:2 0 1M 0 part |
Note how the partition at 259:1 is only 20GB, while the entire disk at 259:0 is 40GB. A partition resize is required in this case.
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# sudo growpart /dev/nvme0n1 1 CHANGED: partition=1 start=4096 old: size=41938911 end=41943007 new: size=83881951 end=83886047 # lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT nvme0n1 259:0 0 40G 0 disk ├─nvme0n1p1 259:1 0 40G 0 part / └─nvme0n1p128 259:2 0 1M 0 part # df -hT Filesystem Type Size Used Avail Use% Mounted on /dev/nvme0n1p1 xfs 20G 2.8G 18G 14% / # sudo xfs_growfs -d / meta-data=/dev/nvme0n1p1 isize=512 agcount=11, agsize=524159 blks = sectsz=512 attr=2, projid32bit=1 = crc=1 finobt=1 spinodes=0 data = bsize=4096 blocks=5242363, imaxpct=25 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 ftype=1 log =internal bsize=4096 blocks=2560, version=2 = sectsz=512 sunit=0 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 data blocks changed from 5242363 to 10485243 # df -hT /dev/nvme0n1p1 xfs 40G 2.8G 38G 7% / If the XFS tools are not already installed, you can install them as follows: sudo yum install xfsprogs |
For an EXT4 filesystem, use the resize2fs command instead:
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sudo resize2fs /dev/nvme0n1p1 |
For more information, please visit the AWS Docs: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/recognize-expanded-volume-linux.html
Categories: How-To's, Technology Tags: Amazon, Amazon Linux 2, AWS, df, df -hT, Disk, EBS, Expand, Filesystem, Grow, howto, Linux, Linux2, lsblk, NVMe, partition, Resize, tips, volume, XFS | No comments
Author:
erics, Posted on Tuesday, April 11th, 2023 at 6:31:31pm
PROBLEM:
I was seeing the following error when trying to do a plugin update, and an error in my WordPress logs:
Update failed: 504 Gateway Timeout Gateway Timeout The gateway did not receive a timely response from the upstream server or application.
[Tue Apr 11 22:12:01.373709 2023] [proxy_fcgi:error] [pid 26878] (70007)The timeout specified has expired: [client 200.10.125.161:55460] AH01075: Error dispatching request to : (polling), referer: https://www.demo.org/wp-admin/plugins.php?plugin_status=upgrade
and getting variations of any of the following strings:
504 Gateway Timeout
HTTP 504
504 ERROR
Gateway Timeout (504)
HTTP Error 504 – Gateway Timeout
Gateway Timeout Error
SOLUTION:
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vi /etc/httpd/conf.d/php.conf ADD: <Proxy "unix:/run/php-fpm/www.sock|fcgi://localhost"> ProxySet connectiontimeout=1200 TimeOut=1200 </Proxy> vi /etc/httpd/conf.modules.d/00-proxy_timeout.conf Timeout 1200 ProxyTimeout 1200 systemctl restart php-fpm systemctl restart httpd ~OR~ apachectl configtest;apachectl restart |
Categories: How-To's, Technology Tags: 00-proxy_timeout.conf, 504, 504 ERROR, 504 Gateway Timeout, apache, fcgid.conf, Gateway Timeout, Gateway Timeout (504), Gateway Timeout Error, howto, HTTP 504, HTTP Error 504 – Gateway Timeout, Performance, php-fpm, Restart, Speed, systemctl, Timeout, tips, tuning | No comments
Author:
erics, Posted on Tuesday, April 11th, 2023 at 10:09:00am
Categories: How-To's, Technology Tags: Display, git, git tag, howto, List, Message, Show, Tag, tips | No comments
Author:
erics, Posted on Friday, February 24th, 2023 at 12:29:58pm
SSH login from older hosts running OS X Yosemite 10.10.5 to macOS Ventura 13.2.1 was not working.
SSH failed with a “No hostkey alg” error.
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vi /etc/ssh/sshd_config HostKeyAlgorithms +ssh-rsa,ssh-dss PubkeyAcceptedKeyTypes +ssh-rsa,ssh-dss |
Be sure to stop and start Remote Login under System Settings -> General -> Sharing
Categories: How-To's, Technology Tags: dss, HostKeyAlgorithms, howto, MacOS, PubkeyAcceptedKeyTypes, RSA, ssh, ssh-dss, ssh-rsa, sshd, sshd_config, tips, Ventura, Yosemite | No comments
Author:
erics, Posted on Thursday, January 19th, 2023 at 7:38:38pm
David Crosby, Born 1941, Died Jan 18th, 2023 at 81 years old
Categories: Death, Entertainment, Technology Tags: crosby, david, david crosby, death, Rip | No comments
