Posts tagged "linux"
Problem: (5. September 2022) when fetching Devuan updates you get the following error: Err http://deb.devuan.org/merged beowulf InRelease The following signatures were invalid: EXPKEYSIG BB23C00C61FC752C Devuan Repository (Amprolla3 on Nemesis) repository@devuan.org Discussion: The devuan key to sign the repository ...
Problem: In syslog you find a line like this: smartd[1514]: Device: /dev/sda [SAT], Failed SMART usage Attribute: 5 Reallocated_Sector_Ct. But when you check with "smartctl -a" you find a reallocated sector count of zero: # smartctl -a /dev/sda ... ID# ATTRIBUTE_NAME FLAG TYPE UPDATED WHEN_FAILED RAW_VALUE 5...
Problem: When pasting commands to the shell, the shell no longer executes the command but shows the pasted text highlighted and shows the line feed but does not process it. Discussion: Devuan4 and Debian11 upgraded the readline library with a new default "feature" that should prevent noobs from accidentally pasting...
Some protocols need more than one TCP or UDP connection. For NAT to work the firewall needs to open additional ports to allow client-server connections automatically. Examples are FTP (port 21 handshake, additional ports for data), PPTP (port 1723 for handshake, proto GRE 47 for payload) Since Linux kernel (~) 4.7 th...
Problem: curl php wget and others show a cert error like the following since 6. Oct 2021, even though the cert has not expired: curl: (60) SSL certificate problem: certificate has expired More details here: https://curl.haxx.se/docs/sslcerts.html curl performs SSL certificate verification by default, using a "bundle...
Admins who prefer a Unix-style operating system and don't like the centralized "one tool doing it all" approach of systemd, switch to Devuan. This mostly improves uptime over boot time. Admins of servers don't care about boot time and prefer uptime. This list keeps track of the related versions of Devuan and Debian....
DHCP relaying is used to forward DHCP requests to a DHCP server if the client and the server are not on the same network. One standard implementation of this is isc-dhcp-relay which is part of the isc-dhcp package. Problem: The dhcrelay is forwarding the dhcp request to the dhcp server and the dhcp server is respond...
After Devuan 3 update ls output showed characters that are not really in the directory listing. The reason is that "ls" draws quotes around filenames with spaces. This is a bug from my point of view, ls should never change the actual filenames. If a filename has quotes or double quotes it's even weirder. "ls" adds...
After updating to Devuan 3 the date command shows 12 hours am/pm but my days have 24 hours. The locale was always en_US.UTF8 to keep sane command and error output. Debian 10 thinks they had to fix the correct hour display to the complicated one. Therefore all sysadmins like me have to apply the following workaround, t...
Problem: A Linux box with Debian 9 (kernel 4.9) on a HP server with Intel i40e (X710) network cards, is not reachable from neighbor machines, because ARP does not work. Discussion: while testing with tcpdump ARP worked, but later ARP stopped working again. When tcpdump is used with "-p" (non promiscuous mode) you ca...