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Questions tagged [log-files]

A log file is a file, often in clear text, which is generated by a software process to record some specific details about the workings of this process.

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Unreadable Outlook Log Files

For a few weeks now we have two users who need to login into a "domain-login"-window upon starting outlook. We suspect our crm or ad fs to be responsible but can't know for sure. Therefore I'...
lkswtf's user avatar
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Fluent-Bit - How to extract part of a file name and append it to log_stream_name for Cloudwatch log group

New to Fluent-Bit and looking for some guidance on this. Latest version of Fluent-Bit is installed on ec2 and successfully running and working. I am pushing logs from /var/log/nginx... to Cloudwatch ...
user2500414's user avatar
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ENQ icon character in a .log file

I think it might be rust or a hyperlink
morgansbyers's user avatar
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74 views

Can I ignore certain visitors when using Goaccess?

I want to use goaccess to see how many real visitors my website is getting. Unsurprisingly my logs are filled with traffic from bots so I'm looking for a way to filter that out. In the interests of ...
Matt's user avatar
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Zabbix Logfile monitoring doesn't work

I am trying to set up Zabbix monitoring for a nginx webserver. The file is located in /var/log/nginx/accesss.log. I also already modified the access rights and checked that the zabbix agent on the web ...
Tom's user avatar
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Looking to monitor activity regarding connection attempts to closed ports on my system, what log file in should i look in? Ubuntu

I'm looking to monitor activity regarding connection attempts to closed ports on my system, as part of a server side portknocking implemetation. However, I am confused about what log file in ...
kagami's user avatar
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6 votes
2 answers
20k views

Where is some os logs in Debian 12

It seems that some of the system log files (/var/log/syslog, /var/log/auth.log, /var/log/kern.log, ...) have been removed in the latest version of Debian, Debian Bookworm. What should be done to ...
Omidreza Bagheri's user avatar
-1 votes
2 answers
86 views

How to Return the SQL_DB log files (.ldf) to the default Application

I have tried to open a "log" file of SQL DB with Windows Notepad application. Unfortunately, I forgot to remove the tick from the checkbox of “Always use the selected program to open this ...
Yousef Albakoush's user avatar
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strange nginx error log file: connection to a private ip from a public ip

On a vps I have configured a vpn (wireguard) where the IP is 10.6.6.100. I found this strange log on nginx error.log: 2023/11/01 03:52:22 [error] 2821800#2821800: *135455 open() "/usr/share/nginx/...
res1's user avatar
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squid reverse proxy log

we have an exchange server behind a squid reverse proxy there is many failed account events in exchange, the exchange event viewer display the IP address of the reverse proxy as source address in ...
skacem's user avatar
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533 views

How to stream Kubernetes log files to a different location using fluent-bit?

I have a requirement where I want the log files of all the Kubernetes containers stored in the location /var/log/containers/ to be kept persistent even after a cluster restart or node issue. I have ...
Gill Varghese Sajan's user avatar
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What format log files is Plesk interpreting?

We are creating our own log files but are unable to fit it into a format that Plesks seems to like. Currently it looks like this for format "%s - - [%s] \"%s\" %s\r\n",
theking2's user avatar
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1 answer
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CentOS 7: Postfix logs got cleared when running history -c. How can I investigate what happened the day the log was cleared?

By default, running history -c has no way of also deleting /var/mail/maillog, right? How can I investigate what happened the day the log was cleared, or (by definition) when the new maillog was ...
Andrw's user avatar
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265 views

Docker container logs not found after dockerd restart

I am running a Ubuntu 18.04 server with Docker (v20.10.12) containers running on it. I have about 5 containers running at a time and they consume about 1.5GB of memory on the regular, while my server ...
untx_bottom's user avatar
2 votes
1 answer
180 views

Tail log files on multiple servers

Scenario: I have load balanced servers running a web application. To debug I'd like to see the output of the same log file (such as the nginx log) combined into a single stream, e.g. a tail -f on all ...
Peter Thoeny's user avatar
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35 views

Notifying an administrator when mail-server wasn't able to upload logs to ftp-server - if condition is failing

I am currently working on a solution, that would notify me whenever my mail-server isn't able to transfer files to my ftp-server. (Right now my logs get rotated once per night and immediately uploaded ...
Moritz's user avatar
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1 vote
1 answer
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how to make logrotate take filesize into consideration when rotating

Lets say I want to logrotate when the filesize is 1kb . Before the run if the filesize of the log is 4kb I expect logrotate to create 4 different log files. Before: something.log (4kb) What I expect ...
userskin's user avatar
3 votes
2 answers
938 views

How to automatically change the name of a file on a daily basis

I am new to Linux/CentOS and right now I am running into a little problem. My CentOS7 Server logs all Maillogs, via Logrotate, on a daily basis and moves them to the folder /var/log/old_maillogs. ...
Moritz's user avatar
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1 answer
83 views

OPTIONS method gets 200 status instead of 301 in IIS10 logs

I'm trying to learn why OPTIONS method requests (presumably CORS preflight requests) are logged as 200 status while all GET method requests are logged as the expected 301 (moved permanently). The only ...
Merennulli's user avatar
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197 views

Using fail2ban to scan for SSH Accepted Connections and write the username to auth.log

I have a small server that authenticate users as root using their ssh-keys stored in authorized_keys file. I also run fail2ban. I made a convention to have a nickname written after the public_key of ...
meldirlobor's user avatar
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113 views

Split logging on rsyslogd

My goal is to send all logs to one source remote and still log local but then send all the AuditD logs to its own source on port 20002. But for some reason, my auditd logs are still ending up with my ...
Jason's user avatar
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Postfix cleanup logs not showing all mail ids in Cc header

my main.cf file contains line_length_limit=4000 append_dot_mydomain = no #delay_warning_time = 4h readme_directory = no compatibility_level = 2 transport_maps = hash:/etc/postfix/transport ...
Shahid 's user avatar
-1 votes
1 answer
178 views

Perl script to restart Apache in Windows

Is this all I need to restart Apache from within my Perl script? system("C:\\Apache24\\bin\\httpd.exe -k restart"); I tried to verify that this actually restarts Apache, but cant find my ...
MeSo2's user avatar
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290 views

LogStash and parsing OPNSenser logs

My logs are coming in as follows: <134>May 24 14:39:32 edge.internal filterlog[2535]: 78,,,ffe6d10d1f27a42fc0edc3abb3a6d333,ovpnc1,match,pass,out,4,0x0,,63,61951,0,DF,6,tcp,60,10.8.0.2,20.44.17....
Jason's user avatar
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0 votes
2 answers
313 views

apache remove wget for better security

Im no expert at IT or apache but I have used linux for years. Ive done my best to harden/secure my server online which I use for a mobile app which needs to serve up its content etc. Ive noticed some ...
Tim's user avatar
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242 views

How to restart a windows service when a log file has not been modified for a period of time?

I have a windows service and it's running a bit problematic. Sometimes it crashes or sometimes connection to the server is lost but it does nothing for it. Therefore, I have to check the logs of the ...
oktay's user avatar
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0 answers
256 views

Is it safe to delete folders/files under run/log/journal (not var/log/journal)?

I'm running CentOS in EC2 and I saw this post but my path is run/log/journal and not var/log/journal. And there're two folders under journal - e76430a3b6eb....d3d1dc73 and b30d0f2110ac....3ce88f So, ...
xesoh43966's user avatar
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1 answer
352 views

Import past log files into Sentry

We're exploring sentry.io Is it possible to import historical logs into Sentry? We're also looking at Prometheus and Grafana, and it looks like general SQL queries work for them, but it seems to me ...
J. Gwinner's user avatar
1 vote
1 answer
890 views

How to trace/find "lost" emails with log files and doveadm?

One of my clients is missing some emails and I try to find what is going on, but my knowledge is limited. Have asked the server support guys, but they say all is fine and attach just the logs (which I ...
Sam's user avatar
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0 votes
1 answer
62 views

Is PHP's error_log dependent on the OS, config file or something else?

I have two HTTP servers: Live LAMP server. Local WAMP server. When an error occurs on the live server PHP will generate an error_log file in the directory of where the script error occurred. The ...
John's user avatar
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0 votes
1 answer
681 views

which entries in the auth.log could be dangerouse and which not

which kind of entries in the auth.log are not good or from which one should i been scared? Oct 3 05:00:01 webv2 CRON[25757]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)...
wtf_1x's user avatar
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1 answer
387 views

What do the numbers after the HTTP/1.1 or HTTP/2.0 status codes signify?

What are the numbers after the 200, 300, ... status codes and how can I find information about those numbers? For example the numbers 2176, 30125 and 6566 below: 62.240.134.168 - - [04/Oct/2022:09:27:...
trash2's user avatar
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-1 votes
2 answers
795 views

ESXi rotate logfiles by hours

ESXI: 70u2 Hi, I can't found "/etc/logrotate.conf", I understand he don't exist in this version. In the file "/etc/vmsyslog.conf" I can specify some options, the split by size has ...
CH06's user avatar
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1 vote
0 answers
370 views

Why are docker container logs sent from ec2 to cloudwatch in batches using awslogs driver?

I have three docker containers running; server, proxy server and a daemon checking for changes between two databases. I've used docker-compose and an ec2 instance for testing. I would like to stream ...
Oliver Burdekin's user avatar
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1 answer
76 views

Way to save apache losgs with IP Info

i use this command to live see apache logs: sudo tail -f /var/log/apache2/access.log I use a Ubuntu 18 VPS wich i have root access. this logs are also saved to the access.log file true? (because when ...
Diego's user avatar
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0 votes
2 answers
499 views

Can't get dumpio on Apache 2.4 Oracle Linux 8.6 php 8

I can't get dumpio to log POST request data. httpd.conf: ... Include /etc/httpd/conf/httpd-le-ssl.conf ... No LogLevel or dumpio related stuff in there. httpd-le-ssl.conf: <virtualHost *:443> ...
jamacoe's user avatar
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1 answer
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Can I see a printer's log about who connected to a network printer?

There's been a problem at work about a given printer that you have to connect to using a printers' server. I don't control the server itself, but if there's a log that I can require to the server ...
newbie's user avatar
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2 votes
2 answers
2k views

mariadb cant turn on error_log

I want to turn on error logging for mariadb to resolve "unable to connect to database" errors I can turn on General Log and Slow Query Log in mariadb no problem. However when I restart ...
stevlav's user avatar
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0 votes
1 answer
559 views

How to log PHP file name in Apache log?

I'm using Apache 2 + PHP 8, and have PHP warnings and errors written in Apache error log files. Here is an example of logs being written: [Wed Aug 10 08:15:54.502158 2022] [php:warn] [pid 15437] [...
Nicolas Leroy's user avatar
0 votes
1 answer
605 views

Samba Server Doesn't logging

I'm trying to logging with Windows in a Samba Server, but it does not connect. When I look in the logs it gives me the message [2022/07/20 08:35:19.749737, 0] ../lib/param/loadparm.c:1844(...
Anderson Silvestre's user avatar
0 votes
1 answer
2k views

Centos 7.8 /var/log/messages fills the disk

I have a VM that works on the Azure cloud. It is Centos 7.8. The problem which I have is related to the /var/log/messages file. It works for several days without an issue. Then, the "messages&...
Safak Serdar Kapci's user avatar
0 votes
1 answer
2k views

Two separate access.log files with different format

Is it possible to have two separate log files, each saving logs with different format? For example, will something like this work? events{} # See blow link for Creating NGINX Plus and NGINX ...
Kosmylo's user avatar
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0 answers
62 views

Email admin scripts

I have been working on scripts to help me administer email servers. This works pretty well on Postix/Debian server to search logs for sent emails. You can even use grep to search the reasults ie. /...
SamTzu's user avatar
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0 answers
210 views

Apache logs AWS EC2

I'm new to AWS and just created an AWS EC2 instance using Ubuntu to host a website. The website is up and running but whenever I got in /var/log/apache2 to view the access.log file, it shows the ...
itsTed's user avatar
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5 votes
3 answers
18k views

How to truncate the log file size without losing recent logs?

I want to reduce the log file size to the particular minimum size I tried the truncate command as below $ truncate -s 20M log filename But when I check the truncated file it truncates the recent logs ...
jayaprakash R's user avatar
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1 answer
160 views

Is it possible to pad columns in nginx access/error logs?

I've recently enabled ipv6 on my site, and while I don't often have a need to manually look at an access_log file, on the occasion that I do it's now very jarring that my first (IP) column is ...
Codemonkey's user avatar
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3 votes
3 answers
2k views

How to limit log size on Elastic beanstalk with Corretto 8/Amazon Linux 2 platform?

We recently migrated one of our applications to the "Corretto 8 running on 64bit Amazon Linux 2/3.2.12" platform. Now we're seeing the issue that the log files are filling up our disk volume ...
UncleBob's user avatar
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1 vote
0 answers
2k views

Nginx Error logs: [error] open() "/etc/nginx/html/status/" failed (2: No such file or directory), client: 127.0.0.1, server: 127.0.0.1

I am running an Ubuntu based LEMP server with the Nginx's google pagespeed, fastcgi, and modsecurity modules active. I am going through my Nginx error logs, and cannot figure out what these errors ...
DanRan's user avatar
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0 votes
1 answer
5k views

How to properly configure a custom logrotate configuration file?

For the first time today, I am trying to write a configuration file for logrotate. When I restart the logrotate service, I get the following error: logrotate.service: Failed with result 'exit-code'. ...
theirman's user avatar
1 vote
2 answers
4k views

nginx reverse proxy 404 with two servers

I have a problem with my NGINX configuration. I have two webservers running on windows servers. Which one is called from outside with 443 and then should be forwarded to the server with 41001. The ...
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