Posts Tagged ‘Human’

Squid Proxy log timestamp human readable / Convert and beautify Proxy unixtime logs in human-readable form howto

Thursday, February 21st, 2019


If you have installed Squid Cache Proxy recently and you need to watch who is accessing the proxy and what Internet (website is viewed) under /var/log/squid/access.log /var/log/store.log /var/log/access.log etc., you will be unpleasently surprised the log's records are logged in a weird human unreadable format called UTC as Squid Proxy server does not store the date / year / hour time information in a human readable format.

Squid uses the format:
<UNIX timestamp>.<Centiseconds> and you have to be a robot of a kind or a math genious to read it 🙂

To display Squid Proxy log in a human readable, luckily you can use below one-liner  regular expression.

cat access.log | perl -p -e 's/^([0-9]*)/”[“.localtime($1).”]"/e'

If you have to review squid logs multiple times and on a regular basis you can either set some kind of cmd alias in $HOME/.bashrc such as:

alias readproxylog='cat access.log | perl -p -e 's/^([0-9]*)/”[“.localtime($1).”]"/e'

Or for those who prefer beauty install and use a log beatifier / colorizer such as ccze

root@pcfreak:/home/hipo# apt-cache show ccze|grep -i desc -A 3
Description-en: robust, modular log coloriser
 CCZE is a robust and modular log coloriser, with plugins for apm,
 exim, fetchmail, httpd, postfix, procmail, squid, syslog, ulogd,
 vsftpd, xferlog and more.

Description-md5: 55cd93dbcf614712a4d89cb3489414f6
Tag: devel::prettyprint, implemented-in::c, interface::commandline,
 role::program, scope::utility, use::checking, use::filtering,

root@pcfreak:/home/hipo# apt-get install –yes ccze


tail -f /var/log/squid/access.loc | ccze -CA

ccze is really nice to view /var/log/syslog errors and make your daily sysadmin life a bit more colorful


tail -f -n 200 /var/log/messages | ccze

tail-ccze-syslog-screenshot viewing in Colors your Linux logs

For a frequent tail + ccze usage with ccze you can add to ~/.bashrc following shell small function

tailc () { tail $@ | ccze -A }

Below is a list of supported syntax highlighting colorizer:

$ ccze -l
Available plugins:

Name      | Type    | Description
apm       | Partial | Coloriser for APM sub-logs.
distcc    | Full    | Coloriser for distcc(1) logs.
dpkg      | Full    | Coloriser for dpkg logs.
exim      | Full    | Coloriser for exim logs.
fetchmail | Partial | Coloriser for fetchmail(1) sub-logs.
ftpstats  | Full    | Coloriser for ftpstats (pure-ftpd) logs.
httpd     | Full    | Coloriser for generic HTTPD access and error logs.
icecast   | Full    | Coloriser for Icecast(8) logs.
oops      | Full    | Coloriser for oops proxy logs.
php       | Full    | Coloriser for PHP logs.
postfix   | Partial | Coloriser for postfix(1) sub-logs.
procmail  | Full    | Coloriser for procmail(1) logs.
proftpd   | Full    | Coloriser for proftpd access and auth logs.
squid     | Full    | Coloriser for squid access, store and cache logs.
sulog     | Full    | Coloriser for su(1) logs.
super     | Full    | Coloriser for super(1) logs.
syslog    | Full    | Generic syslog(8) log coloriser.
ulogd     | Partial | Coloriser for ulogd sub-logs.
vsftpd    | Full    | Coloriser for vsftpd(8) logs.
xferlog   | Full    | Generic xferlog coloriser.

At many cases for sysadmins like me that prefer clarity over obscurity, even a better solution is to just change in /etc/squid/squid.conf
the logging to turn it in human-readable form
, to do so add to config somewhere:


Logformat squid %tl.%03tu %6tr %>a %Ss/%03Hs %

You will get log output in format like:


18/Feb/2019:18:38:47 +0200.538 4787 y.y.y.y TCP_MISS/200 41841 GET – DIRECT/x.x.x.x text/html

SQUID's format recognized parameters in above example are as follows:


%    a literal % character
>a    Client source IP address
>A    Client FQDN
>p    Client source port
la    Local IP address (http_port)
lp    Local port number (http_port)
sn    Unique sequence number per log line entry
ts    Seconds since epoch
tu    subsecond time (milliseconds)
tl    Local time. Optional strftime format argument
default %d/%b/%Y:%H:%M:%S %z
tg    GMT time. Optional strftime format argument
default %d/%b/%Y:%H:%M:%S %z
tr    Response time (milliseconds)
dt    Total time spent making DNS lookups (milliseconds)


HRQM Games

Sunday, September 23rd, 2007

The last 3 days in the college we used to have a guest from the Arnhem Business Scholl: Job Thinke.He is a teacher in HRQM (Human Resource and Quality Management). We played a simulator. We choose abusiness to be in. Job, Bozhidar, and two graduating students from Arnhem ( one black girl and one guy from South Africa )were the teachers. We choose an industry (our group was some Open cars producing company). Every peson of the teamhad to participate in taking decisions and writting down the decisions in a decision forms every form was aboutmoney we would invest in things which would lead to accomplish a specific goals we had setted in the beginning of the game,things like hiring more employees promoting some of them etc. etc. were our work. The game was played 3 days and it waslike if we had run a 2 years long business. Our group mistake was that we always thought about things in short terms.In the end of the 2nd year of the game we had a discussion meetings with our higher level employees and it turns outthat we are the poorest team because we always thought about the company in short term instead of long term.During this 3 days there was also some funny games for developing concentration and thinking and improvingcommunication skills. In general I think the whole think was a great loss of time, but I’m a strange person …Most of the ppl liked involved from IBMS and Hotel Management liked the game very much.END—–

A funny caricature representing our human ways

Thursday, March 12th, 2009

A friend of mine (Necrolea) had just sent me a funny drawingrepresenting our human major tendencies in life. here Here it is END—–

Books on Human Resource Management

Friday, September 18th, 2009

Here are two books on Human Resource Management Human Resource Management (MGT – 501)
Strategic Human Resource Management View
Strategic Human Resources Management – Aligning with the Mission END—–