Entries Categorized as 'How-To’s'
Author:
erics, May 23rd, 2023
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, May 19th, 2023
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
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Author:
erics, May 9th, 2023
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 […]
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
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Author:
erics, May 5th, 2023
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 […]
Categories: How-To's, Technology Tags: apple, howto, Mac, MacOS, Privacy, rysnc, security, ssh, sshd, tips, Ventura
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Author:
erics, April 17th, 2023
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, […]
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
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Author:
erics, April 11th, 2023
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: […]
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
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Author:
erics, April 11th, 2023
Categories: How-To's, Technology Tags: Display, git, git tag, howto, List, Message, Show, Tag, tips
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Author:
erics, February 24th, 2023
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
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Author:
erics, April 18th, 2022
If you want to preserve quoting to pass shell arguments to a called command, use the four characters “$@” (including the double quotes) instead of the two characters $*
Categories: How-To's, Technology Tags: Argument, Arguments, bash, Command, howto, Keep, Preserve, quote, quotes, Quoting, Save, Shell, tips
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Author:
erics, March 18th, 2022
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vi /etc/postfix/master.cf bounce unix - - n - 0 discard defer unix - - n - 0 discard |
Categories: How-To's, Technology Tags: Bounce, defer, Disable, Discard, Email, howto, master.cf, PostFix, tips
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