rsyslog vs Prosody IM

rsyslog

a Rocket-fast SYStem for LOG processing (by rsyslog)

Logging Syslog C Kafka ElasticSearch rsyslog MongoDB

IMPORTANT: due to a drive failure, as of 13-Mar-2021, the Mercurial repository had to be re-mirrored, which changed every commit SHA. The old SHAs and trees are backed up in the vault branches. Please migrate to the new branches as soon as you can. (by bjc)

Messaging XMPP xmpp-server

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prosody.im

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rsyslog		Prosody IM
	Project
14	Mentions	23
1,953	Stars	590
1.4%	Growth	-
9.1	Activity	9.4
10 days ago	Latest Commit	4 months ago
C	Language	Lua
GNU Lesser General Public License v3.0 only	License	GNU General Public License v3.0 or later

The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

rsyslog

Posts with mentions or reviews of rsyslog. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-06-02.

My collection of Ansible roles for self-hosting everything with Rocky Linux and FreeIPA
17 projects | /r/selfhosted | 2 Jun 2023
Reason for random shutdown?
1 project | /r/linuxquestions | 6 Apr 2023

grep -iv ': starting\|kernel: .*: Power Button\|watching system buttons\|Stopped Cleaning Up\|Started Crash recovery kernel' \ /var/log/messages /var/log/syslog /var/log/apcupsd* \ | grep -iw 'recover[a-z]*\|power[a-z]*\|shut[a-z ]*down\|rsyslogd\|ups' /var/log/syslog:Apr 4 10:11:57 Asus-Mint kernel: [ 211.183400] intel_powerclamp: Start idle injection to reduce power /var/log/syslog:Apr 4 10:12:57 Asus-Mint kernel: [ 271.484057] intel_powerclamp: Start idle injection to reduce power [i][b]/var/log/syslog:Apr 5 09:16:53 Asus-Mint apparmor.systemd[559]: Skipping profile in /etc/apparmor.d/disable: usr.sbin.rsyslogd /var/log/syslog:Apr 5 09:16:53 Asus-Mint systemd[1]: Finished Create final runtime dir for shutdown pivot root. /var/log/syslog:Apr 5 09:16:53 Asus-Mint systemd[1]: Finished Record System Boot/Shutdown in UTMP. /var/log/syslog:Apr 5 09:16:53 Asus-Mint rsyslogd: imuxsock: Acquired UNIX socket '/run/systemd/journal/syslog' (fd 3) from systemd. [v8.2112.0] /var/log/syslog:Apr 5 09:16:53 Asus-Mint rsyslogd: rsyslogd's groupid changed to 110 /var/log/syslog:Apr 5 09:16:53 Asus-Mint rsyslogd: rsyslogd's userid changed to 104 /var/log/syslog:Apr 5 09:16:53 Asus-Mint rsyslogd: [origin software="rsyslogd" swVersion="8.2112.0" x-pid="651" x-info="https://www.rsyslog.com"] start /var/log/syslog:Apr 5 09:16:53 Asus-Mint kernel: [ 5.027861] systemd-journald[284]: File /var/log/journal/b76cc7b1bbdc489e93909d2043031de8/system.journal corrupted or uncleanly shut down, renaming and replacing. /var/log/syslog:Apr 5 09:16:53 Asus-Mint kernel: [ 6.129993] ath: phy0: Disable PLL PowerSave /var/log/syslog:Apr 5 09:16:53 Asus-Mint dbus-daemon[635]: dbus[635]: Unknown group "power" in message bus configuration file /var/log/syslog:Apr 5 09:16:53 Asus-Mint NetworkManager[636]: [1680679013.6224] Read config: /etc/NetworkManager/NetworkManager.conf (lib: 10-dns-resolved.conf, 20-connectivity-ubuntu.conf, no-mac-addr-change.conf) (run: 10-globally-managed-devices.conf) (etc: default-wifi-powersave-on.conf) /var/log/syslog:Apr 5 09:16:53 Asus-Mint systemd[1]: Started Unattended Upgrades Shutdown. /var/log/syslog:Apr 5 09:16:55 Asus-Mint kernel: [ 9.731489] wlp3s0: Limiting TX power to 20 (20 - 0) dBm as advertised by b0:5d:d4:81:19:81 /var/log/syslog:Apr 5 09:16:57 Asus-Mint kernel: [ 12.119484] systemd-journald[284]: File /var/log/journal/b76cc7b1bbdc489e93909d2043031de8/user-1000.journal corrupted or uncleanly shut down, renaming and replacing. /var/log/syslog:Apr 5 09:17:02 Asus-Mint dbus-daemon[635]: [system] Activating via systemd: service name='org.freedesktop.UPower' unit='upower.service' requested by ':1.45' (uid=1000 pid=1805 comm="csd-power " label="unconfined")[/b][/i] /var/log/syslog:Apr 5 09:17:03 Asus-Mint systemd[1]: Started Daemon for power management. /var/log/syslog:Apr 5 09:26:32 Asus-Mint kernel: [ 587.458982] powercap intel-rapl:0: package locked by BIOS, monitoring only /var/log/syslog:Apr 5 09:26:37 Asus-Mint kernel: [ 592.464754] intel_powerclamp: Start idle injection to reduce power /var/log/syslog:Apr 5 09:26:43 Asus-Mint kernel: [ 598.472110] intel_powerclamp: Start idle injection to reduce power /var/log/syslog:Apr 5 09:26:49 Asus-Mint kernel: [ 604.478361] intel_powerclamp: Start idle injection to reduce power /var/log/syslog:Apr 5 09:26:51 Asus-Mint kernel: [ 606.480332] intel_powerclamp: Start idle injection to reduce power
Distributed syslog servers
1 project | /r/linuxadmin | 5 Dec 2022

Found this that might do what you want. https://github.com/rsyslog/rsyslog/issues/3913 It explains using omudpspoof an rsyslog modules that can spoof the senders IP to from the forwarding server. https://www.rsyslog.com/doc/v8-stable/configuration/modules/omudpspoof.html
Help with freezing problem
1 project | /r/linuxquestions | 24 Jul 2022
Sending UDM system logs to rsyslog
1 project | /r/Ubiquiti | 16 Jul 2022

I'm having trouble setting up a Dream Machine (non-pro) to send system logs to a machine on my network running rsyslog.
Help me find a better rsyslog template
2 projects | /r/linuxquestions | 15 Jun 2022

%HOSTNAME%,) that does what I want, but I can not find any place where the macros are listed. Not the man page nor the documentation at https://www.rsyslog.com/. Apparently this is a legacy template format and there is a new and improved format. I think I'll settle for what I've got rather than take the days or weeks it would take to figure that out.
My logs ahow I'm being scanned by this, how do I set a firewall rule to drop the IP
1 project | /r/debian | 1 May 2022

May 1 00:05:17 debianTim gnome-shell[3980]: JS ERROR: Gio.IOErrorEnum: Error opening file /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq: No such file or directory#012cb@/usr/share/gnome-shell/extensions/[email protected]/extension.js:1614:31May 1 00:05:17 debianTim systemd[1]: logrotate.service: Deactivated successfully.May 1 00:05:17 debianTim systemd[1]: Finished Rotate log files.May 1 00:05:17 debianTim audisp-syslog: type=SERVICE_START msg=audit(1651381517.328:5109): pid=1 uid=0 auid=4294967295 ses=4294967295 subj==unconfined msg='unit=logrotate comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' UID="root" AUID="unset"May 1 00:05:17 debianTim systemd[1]: logrotate.service: Consumed 4.498s CPU time.May 1 00:05:17 debianTim audisp-syslog: type=SERVICE_STOP msg=audit(1651381517.328:5110): pid=1 uid=0 auid=4294967295 ses=4294967295 subj==unconfined msg='unit=logrotate comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' UID="root" AUID="unset"May 1 00:05:17 debianTim audisp-syslog: type=BPF msg=audit(1651381517.332:5111): prog-id=0 op=UNLOADMay 1 00:05:17 debianTim rsyslogd: [origin software="rsyslogd" swVersion="8.2204.0" x-pid="865" x-info="https://www.rsyslog.com"] rsyslogd was HUPedMay 1 00:05:17 debianTim kernel: [34508.585138] FW6 REJECT (input): IN=enp1s0 OUT= MAC=33:33:00:00:00:01:48:4e:fc:f0:69:b8:86:dd SRC=fe80:0000:0000:0000:4a4e:fcff:fef0:69b8 DST=ff02:0000:0000:0000:0000:0000:0000:0001 LEN=168 TC=0 HOPLIMIT=255 FLOWLBL=356592 PROTO=ICMPv6 TYPE=134 CODE=0 May 1 00:05:18 debianTim gnome-shell[3980]: JS ERROR: Gio.IOErrorEnum: Error opening file /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq: No such file or directory#012cb@/usr/share/gnome-shell/extensions/[email protected]/extension.js:1614:31May 1 00:05:19 debianTim psad: scan detected fe80:0000:0000:0000:4a4e:fcff:fef0:69b8 -> ff02:0000:0000:0000:0000:0000:0000:0001 DL: 3 total scan dsts: 1May 1 00:05:20 debianTim gnome-shell[3980]: JS ERROR: Gio.IOErrorEnum: Error opening file /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq: No such file or directory#012cb@/usr/share/gnome-shell/extensions/[email protected]/extension.js:1614:31May 1 00:05:20 debianTim kernel: [34511.587589] FW6 REJECT (input): IN=enp1s0 OUT= MAC=33:33:00:00:00:01:48:4e:fc:f0:69:b8:86:dd SRC=fe80:0000:0000:0000:4a4e:fcff:fef0:69b8 DST=ff02:0000:0000:0000:0000:0000:0000:0001 LEN=168 TC=0 HOPLIMIT=255 FLOWLBL=356592 PROTO=ICMPv6 TYPE=134 CODE=0 May 1 00:05:21 debianTim gnome-shell[3980]: JS ERROR: Gio.IOErrorEnum: Error opening file /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq: No such file or directory#012cb@/usr/share/gnome-shell/extensions/[email protected]/extension.js:1614:31May 1 00:05:23 debianTim gnome-shell[3980]: JS ERROR: Gio.IOErrorEnum: Error opening file /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq: No such file or directory#012cb@/usr/share/gnome-shell/extensions/[email protected]/extension.js:1614:31May 1 00:05:23 debianTim kernel: [34514.591944] FW6 REJECT (input): IN=enp1s0 OUT= MAC=33:33:00:00:00:01:48:4e:fc:f0:69:b8:86:dd SRC=fe80:0000:0000:0000:4a4e:fcff:fef0:69b8 DST=ff02:0000:0000:0000:0000:0000:0000:0001 LEN=168 TC=0 HOPLIMIT=255 FLOWLBL=356592 PROTO=ICMPv6 TYPE=134 CODE=0 May 1 00:05:24 debianTim gnome-shell[3980]: JS ERROR: Gio.IOErrorEnum: Error opening file /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq: No such file or directory#012cb@/usr/share/gnome-shell/extensions/[email protected]/extension.js:1614:31May 1 00:05:26 debianTim gnome-shell[3980]: JS ERROR: Gio.IOErrorEnum: Error opening file /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq: No such file or directory#012cb@/usr/share/gnome-shell/extensions/[email protected]/extension.js:1614:31May 1 00:05:26 debianTim psad: scan detected fe80:0000:0000:0000:4a4e:fcff:fef0:69b8 -> ff02:0000:0000:0000:0000:0000:0000:0001 DL: 3 total scan dsts: 1May 1 00:05:26 debianTim kernel: [34517.594684] FW6 REJECT (input): IN=enp1s0 OUT= MAC=33:33:00:00:00:01:48:4e:fc:f0:69:b8:86:dd SRC=fe80:0000:0000:0000:4a4e:fcff:fef0:69b8 DST=ff02:0000:0000:0000:0000:0000:0000:0001 LEN=168 TC=0 HOPLIMIT=255 FLOWLBL=356592 PROTO=ICMPv6 TYPE=134 CODE=0 May 1 00:05:27 debianTim gnome-shell[3980]: JS ERROR: Gio.IOErrorEnum: Error opening file /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq: No such file or directory#012cb@/usr/share/gnome-shell/extensions/[email protected]/extension.js:1614:31May 1 00:05:29 debianTim gnome-shell[3980]: JS ERROR: Gio.IOErrorEnum: Error opening file /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq: No such file or directory#012cb@/usr/share/gnome-shell/extensions/[email protected]/extension.js:1614:31May 1 00:05:29 debianTim kernel: [34520.597010] FW6 REJECT (input): IN=enp1s0 OUT= MAC=33:33:00:00:00:01:48:4e:fc:f0:69:b8:86:dd SRC=fe80:0000:0000:0000:4a4e:fcff:fef0:69b8 DST=ff02:0000:0000:0000:0000:0000:0000:0001 LEN=168 TC=0 HOPLIMIT=255 FLOWLBL=356592 PROTO=ICMPv6 TYPE=134 CODE=0 May 1 00:05:30 debianTim gnome-shell[3980]: JS ERROR: Gio.IOErrorEnum: Error opening file /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq: No such file or directory#012cb@/usr/share/gnome-shell/extensions/[email protected]/extension.js:1614:31May 1 00:05:32 debianTim gnome-shell[3980]: JS ERROR: Gio.IOErrorEnum: Error opening file /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq: No such file or directory#012cb@/usr/share/gnome-shell/extensions/[email protected]/extension.js:1614:31May 1 00:05:32 debianTim psad: scan detected fe80:0000:0000:0000:4a4e:fcff:fef0:69b8 -> ff02:0000:0000:0000:0000:0000:0000:0001 DL: 3 total scan dsts: 1May 1 00:05:32 debianTim kernel: [34523.599521] FW6 REJECT (input): IN=enp1s0 OUT= MAC=33:33:00:00:00:01:48:4e:fc:f0:69:b8:86:dd SRC=fe80:0000:0000:0000:4a4e:fcff:fef0:69b8 DST=ff02:0000:0000:0000:0000:0000:0000:0001 LEN=168 TC=0 HOPLIMIT=255 FLOWLBL=356592 PROTO=ICMPv6 TYPE=134 CODE=0 May 1 00:05:33 debianTim gnome-shell[3980]: JS ERROR: Gio.IOErrorEnum: Error opening file /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq: No such file or directory#012cb@/usr/share/gnome-shell/extensions/[email protected]/extension.js:1614:31May 1 00:05:34 debianTim kernel: [34524.887982] FW REJECT (input): IN=enp1s0 OUT= MAC=01:00:5e:00:00:fb:1a:46:f9:6a:58:1d:08:00 SRC=192.168.0.172 DST=224.0.0.251 LEN=105 TOS=0x00 PREC=0x00 TTL=255 ID=34594 DF PROTO=UDP SPT=5353 DPT=5353 LEN=85 May 1 00:05:35 debianTim gnome-shell[3980]: JS ERROR: Gio.IOErrorEnum: Error opening file /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq: No such file or directory#012cb@/usr/share/gnome-shell/extensions/[email protected]/extension.js:1614:31May 1 00:05:35 debianTim kernel: [34526.602159] FW6 REJECT (input): IN=enp1s0 OUT= MAC=33:33:00:00:00:01:48:4e:fc:f0:69:b8:86:dd SRC=fe80:0000:0000:0000:4a4e:fcff:fef0:69b8 DST=ff02:0000:0000:0000:0000:0000:0000:0001 LEN=168 TC=0 HOPLIMIT=255 FLOWLBL=356592 PROTO=ICMPv6 TYPE=134 CODE=0 May 1 00:05:36 debianTim gnome-shell[3980]: JS ERROR: Gio.IOErrorEnum: Error opening file /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq: No such file or directory#012cb@/usr/share/gnome-shell/extensions/[email protected]/extension.js:1614:31May 1 00:05:37 debianTim eddie-ui.desktop[4669]: . 2022.05.01 00:05:37 - Collect information about AirVPN completedMay 1 00:05:38 debianTim gnome-shell[3980]: JS ERROR: Gio.IOErrorEnum: Error opening file /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq: No such file or directory#012cb@/usr/share/gnome-shell/extensions/[email protected]/extension.js:1614:31May 1 00:05:38 debianTim psad: scan detected fe80:0000:0000:0000:4a4e:fcff:fef0:69b8 -> ff02:0000:0000:0000:0000:0000:0000:0001 DL: 3 total scan dsts: 1May 1 00:05:38 debianTim kernel: [34529.604182] FW6 REJECT (input): IN=enp1s0 OUT= MAC=33:33:00:00:00:01:48:4e:fc:f0:69:b8:86:dd SRC=fe80:0000:0000:0000:4a4e:fcff:fef0:69b8 DST=ff02:0000:0000:0000:0000:0000:0000:0001 LEN=168 TC=0 HOPLIMIT=255 FLOWLBL=356592 PROTO=ICMPv6 TYPE=134 CODE=0 May 1 00:05:39 debianTim gnome-shell[3980]: JS ERROR: Gio.IOErrorEnum: Error opening file /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq: No such file or directory#012cb@/usr/share/gnome-shell/extensions/[email protected]/extension.js:1614:31May 1 00:05:41 debianTim gnome-shell[3980]: JS ERROR: Gio.IOErrorEnum: Error opening file /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq: No such file or directory#012cb@/usr/share/gnome-shell/extensions/[email protected]/extension.js:1614:31May 1 00:05:41 debianTim kernel: [34532.606391] FW6 REJECT (input): IN=enp1s0 OUT= MAC=33:33:00:00:00:01:48:4e:fc:f0:69:b8:86:dd SRC=fe80:0000:0000:0000:4a4e:fcff:fef0:69b8 DST=ff02:0000:0000:0000:0000:0000:0000:0001 LEN=168 TC=0 HOPLIMIT=255 FLOWLBL=356592 PROTO=ICMPv6 TYPE=134 CODE=0 May 1 00:05:42 debianTim gnome-shell[3980]: JS ERROR: Gio.IOErrorEnum: Error opening file /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq: No such file or directory#012cb@/usr/share/gnome-shell/extensions/[email protected]/extension.js:1614:31
Syslog server
1 project | /r/homelab | 31 Mar 2022
Forward firewalla logs
1 project | /r/firewalla | 26 Feb 2022
Linus Mint crashed completely. Not sure what is the solution
1 project | /r/linuxmint | 6 Jan 2022

Jan 06 00:00:05 Eluktronics-Max-17 systemd[1]: Started CUPS Scheduler. Jan 06 00:00:05 Eluktronics-Max-17 systemd[1]: Started Make remote CUPS printers available locally. Jan 06 00:00:06 Eluktronics-Max-17 rsyslogd[814]: [origin software="rsyslogd" swVersion="8.2001.0" x-pid="814" x-info="https://www.rsyslog.com"] rsyslogd was HUPed Jan 06 00:00:06 Eluktronics-Max-17 systemd[1]: logrotate.service: Succeeded. Jan 06 00:00:06 Eluktronics-Max-17 systemd[1]: Finished Rotate log files. Jan 06 00:00:06 Eluktronics-Max-17 audit[39592]: AVC apparmor="DENIED" operation="capable" profile="/usr/sbin/cups-browsed" pid=39592 comm="cups-browsed" capability=23 capname="sys_nice" Jan 06 00:00:06 Eluktronics-Max-17 kernel: kauditd_printk_skb: 13 callbacks suppressed Jan 06 00:00:06 Eluktronics-Max-17 kernel: audit: type=1400 audit(1641445206.109:25): apparmor="DENIED" operation="capable" profile="/usr/sbin/cups-browsed" pid=39592 comm="cups-browsed" capability=23 capname="sys_nice" Jan 06 00:00:06 Eluktronics-Max-17 systemd[1]: man-db.service: Succeeded. Jan 06 00:00:06 Eluktronics-Max-17 systemd[1]: Finished Daily man-db regeneration. Jan 06 00:00:07 Eluktronics-Max-17 colord[1173]: failed to get session [pid 39591]: No data available Jan 06 00:00:10 Eluktronics-Max-17 kernel: mce: [Hardware Error]: Machine check events logged Jan 06 00:00:21 Eluktronics-Max-17 kernel: mce: [Hardware Error]: Machine check events logged Jan 06 00:01:24 Eluktronics-Max-17 kernel: mce_notify_irq: 4 callbacks suppressed Jan 06 00:01:24 Eluktronics-Max-17 kernel: mce: [Hardware Error]: Machine check events logged Jan 06 00:01:37 Eluktronics-Max-17 kernel: mce: [Hardware Error]: Machine check events logged Jan 06 00:02:54 Eluktronics-Max-17 kernel: mce_notify_irq: 3 callbacks suppressed Jan 06 00:02:54 Eluktronics-Max-17 kernel: mce: [Hardware Error]: Machine check events logged Jan 06 00:03:04 Eluktronics-Max-17 kernel: mce: [Hardware Error]: Machine check events logged Jan 06 00:04:07 Eluktronics-Max-17 kernel: mce_notify_irq: 2 callbacks suppressed Jan 06 00:04:07 Eluktronics-Max-17 kernel: mce: [Hardware Error]: Machine check events logged Jan 06 00:04:24 Eluktronics-Max-17 kernel: mce: [Hardware Error]: Machine check events logged Jan 06 00:05:11 Eluktronics-Max-17 kernel: mce_notify_irq: 2 callbacks suppressed Jan 06 00:05:11 Eluktronics-Max-17 kernel: mce: [Hardware Error]: Machine check events logged Jan 06 00:05:35 Eluktronics-Max-17 kernel: mce: [Hardware Error]: Machine check events logged Jan 06 00:06:29 Eluktronics-Max-17 kernel: mce_notify_irq: 1 callbacks suppressed Jan 06 00:06:29 Eluktronics-Max-17 kernel: mce: [Hardware Error]: Machine check events logged Jan 06 00:06:33 Eluktronics-Max-17 kernel: mce: [Hardware Error]: Machine check events logged Jan 06 00:07:33 Eluktronics-Max-17 kernel: mce_notify_irq: 4 callbacks suppressed Jan 06 00:07:33 Eluktronics-Max-17 kernel: mce: [Hardware Error]: Machine check events logged Jan 06 00:07:34 Eluktronics-Max-17 kernel: mce: [Hardware Error]: Machine check events logged Jan 06 00:08:38 Eluktronics-Max-17 kernel: mce_notify_irq: 3 callbacks suppressed Jan 06 00:08:38 Eluktronics-Max-17 kernel: mce: [Hardware Error]: Machine check events logged Jan 06 00:08:53 Eluktronics-Max-17 kernel: mce: [Hardware Error]: Machine check events logged Jan 06 00:09:58 Eluktronics-Max-17 kernel: mce_notify_irq: 3 callbacks suppressed Jan 06 00:09:58 Eluktronics-Max-17 kernel: mce: [Hardware Error]: Machine check events logged Jan 06 00:10:28 Eluktronics-Max-17 kernel: mce: [Hardware Error]: Machine check events logged -- Reboot --

Prosody IM

Posts with mentions or reviews of Prosody IM. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-06-02.

My collection of Ansible roles for self-hosting everything with Rocky Linux and FreeIPA
17 projects | /r/selfhosted | 2 Jun 2023

XMPP server using Prosody
Lua: The Little Language That Could
19 projects | /r/programming | 28 May 2023

lua on its own right can be fun too! If you are looking for a project to contribute to, there's for instance the Prosody XMPP server that's written in it, and contributes to the betterment of internet by promoting federated protocols.

16 projects | news.ycombinator.com | 28 May 2023

There's also the http://prosody.im/ XMPP server that's written in Lua, and it's very successful there. The other major XMPP server implementation is in Erlang and they are equally praised, so that should tell something about Lua's versatility.
VoceChat server is ready! Rust written 17MB open sourced chat server--the easiest to host/intergrate chat server you can find.
6 projects | /r/selfhosted | 13 Feb 2023

Take your pick. Or just look here.
Chat Server
1 project | /r/de_EDV | 15 Oct 2022
A History of Lua
14 projects | news.ycombinator.com | 10 Aug 2022

You can write largish standalone application in Lua and it is not always a poor choice - Prosody [1] first comes to mind. But qualities which make it a good embedded language make it less _attractive_ for other uses.
Lua has very simple syntax and small stdlib which allows its implementation to be very small - you can add Lua to your application and not increase its size significantly. But when the size is not a concern most programmers prefer languages with rich, powerful syntax lots of features and batteries-included stdlib (which is completely opposite of Lua).
[1] https://prosody.im/
Chat app to allow messaging between my daughter and I?
4 projects | /r/selfhosted | 21 Jul 2022

If you are really set on a LAN-only setup you could look at Prosody (combined with an Android app such as Conversations) which Snikket is based upon. It's not as "ready to go, out of the box" as Snikket and therefore requires a slightly higher skill level, but in exchange it is a lot more customizable and adaptable to different kinds of deployment scenarios.
Google Chat through Matrix questions
3 projects | /r/selfhosted | 30 Apr 2022

Selfhosting XMPP is pretty simple with https://prosody.im/
Need Advice on Instant Messaging
1 project | /r/selfhosted | 8 Apr 2022
Ask HN: What is your recommended stack for real time chat?
7 projects | news.ycombinator.com | 24 Mar 2022

My choice, because it's the stack I know very well, would be Prosody ( https://prosody.im/ - I'm one of the devs) and a web client such as Converse.js ( https://conversejs.org/ ). XMPP is highly extensible, Prosody is highly modular, which make them a good foundation for building on top of.
That said, the right stack is generally the one that matches your requirements, and (if this isn't primarily a learning exercise) whatever you're most familiar with. The hardest part of building a Discord or Slack-like in 2022 is actually not the technical stuff. There are many comprehensive open-source products already out there that compete with these companies, such as Mattermost, RocketChat and Element.

What are some alternatives?

When comparing rsyslog and Prosody IM you can also consider the following projects:

syslog-ng - syslog-ng is an enhanced log daemon, supporting a wide range of input and output methods: syslog, unstructured text, queueing, SQL & NoSQL.

ejabberd - Robust, Ubiquitous and Massively Scalable Messaging Platform (XMPP, MQTT, SIP Server)

fluent-bit - Fast and Lightweight Logs and Metrics processor for Linux, BSD, OSX and Windows

Openfire - An XMPP server licensed under the Open Source Apache License.

loki - Like Prometheus, but for logs.

Metronome IM - Metronome IM, lightweight xmpp server with advanced microblogging features.

librdkafka - The Apache Kafka C/C++ library

Tigase - Tigase XMPP server patched for Kontalk

Flume - Mirror of Apache Flume

matterbridge - bridge between mattermost, IRC, gitter, xmpp, slack, discord, telegram, rocketchat, twitch, ssh-chat, zulip, whatsapp, keybase, matrix, microsoft teams, nextcloud, mumble, vk and more with REST API (mattermost not required!)

lua-mongo - MongoDB Driver for Lua

jackal - 💬 Instant messaging server for the Extensible Messaging and Presence Protocol (XMPP).