Archive for the ‘Email’ Category

Linux Recruting

I get a LOT of emails from headhunters, many asking me to come work for them doing every-damn-thing for no money as a “consultant” on (only) a 6 month contract 🙂 I am sure all tech people do. Occasionally I get email from a recruiter who is actually asking me for help looking for a decent Linux person. I got one of those this afternoon. In summary, the email went like this:

I am looking for (Linux Admin) and you probably aren’t looking but I am having a hard time and could you help point me somewhere I can find one?

I always respond to those emails, and, for posterity and for any recruiters watching, here’s the answer:

Not necessarily true. I am always looking 😉
I get a lot of requests and offers and I’ll tell you what turns me off and that may help you find someone. Linux guys with any experience are in really short supply and they are a unique breed of techie. Most are driven to Linux by the premise of free software and/or open source ideals, and as such they do not necessarily have (current) windows skills and are even more likely to not be interested in using any that they do have. I fit into that category. Also, not every Linux guy is a java programmer/desktop technician/helpdesk/printer mechanic/insert other required skill set jumble here. I see a lot of those. “We need a Linux guy that will fix our windows desktop, program new device drivers, fix our mainframe and telephone system, sweep floors and wash cars” kind of things. Those kind of people do not exist 🙂 Lastly is the compensation. Most companies have dealt with the influx of paper certed, dime a dozen MCSE’s for their technical needs and they truly believe that anyone out of grade school can “do tech” for them. It has greatly devalued the industry as a whole. They do not understand the real high skilled people are rare and expensive and can *easily* find work, which is why most Linux/Unix people have not been effected by the technical recession.

So I guess in short,
Linux guys are almost always staunch Linux guys (and if they are not, be suspicious).
Be specific in what you need but remember that These kinds of tech guys are quick at catching on to related technologies so try and be general where you can. For example, there are a bunch of scripting languages and all of them are capable of getting the job done, so say you need a scripter instead of you need a perl scripter.
Be prepared to offer more compensation for a rarer Linux tech than you would an unemployed Windows tech.
Advertise in the right circles. When I get offers, I often send them out to some of the mailing lists of Linux techs I am on, and there are some great Linux groups on Facebook and Google Plus. There are also websites like Linuxquestions.org where Linux geeks hang out.
Lastly, if all else fails, try a few less experienced Linux guys.

Thursday, December 12th, 2013

Take a bite out of your email with mutt.

Mutt

Mutt


I really love text based email clients. They do a wonderful job of keeping distractions out of your way and letting you focus on what’s important – the message! I find that by using a text email client, I save myself probably 30 minutes or more each day (yes, I get a LOT of emails).
For years I advocated and used pine and alpine for my email. I really liked it and still do, however, it just doesn’t perform great with IMAP it seems, and especially multiple IMAP accounts, and that is what the email of today is like. I switched to a more efficient thunderbird email client for a long while, but then thunderbird started addding “features” like local indexing and such. Kind of a turn off.
Recently, I thought I would look around again and landed back on mutt. I had avoided mutt for many years because it used to require you run your own smtp server. That has always been pretty impractical for me. Now, however, I found that mutt does support using an external smtp server and handles IMAP email with ease. Well! It was time to give it a try and boy, I am glad I did. It’s fantastic! It’s very lightweight, fast, powerful and has that manly text based interface that makes you feel like a power user and makes you look like a unix genius.
The key to a good mutt setup is in the config file, and therein lies all the power as well. Here is a peek into my ~/.muttrc file to give you an idea on how to get things going:

set spoolfile=imap://youremailhostaddress.com/
set folder=imap://youremailhostaddress.com/
set record=”=Sent”
set postponed=”=Drafts”
set mark_old=no # does not mark your messages as old
set fast_reply=yes
set include=yes
set imap_user = “yourusername”
set imap_pass = “yourpassword”
set signature=”~/.signature”
set smtp_url=smtp://yoursmtpserver
auto_view text/html
set mail_check=30
set timeout=15
set realname=”your realname”
set from=”your from address”
set use_from=yes
set editor=vim #greatest editor around
unset markers # get rid of those pesky plusses
set ssl_starttls = no # dont use these on my internal srvr
set ssl_force_tls = no # same as above

Those are pretty self explanatory and I find that is a minimum config for me to work with. Now you might (if you are smart and use vim) want to enable a spellchecker in vim as well. That just takes these lines in your ~/.vimrc file:

set spell
set spelllang=en_gb

Once that is in there and you make a spelling error on an email it will be highlighted. Just cursor over the word and press z= for a spelling suggestion.

As for a few tips on actually using mutt, here are some that will get you started:
Cursor up/down and press enter or space to read a mail.
Once in the email space to page/scroll down and – to get back up.
Press v to view attachment list and enter on the one you want to open.
Press m to write a new email.
Press c then tab to change folders and press space to open that email folder.
Press s then ? to save an email to a different folder and select the folder with space.
Press d to delete an email, r to reply to the sender, g to reply to all.
Press a to take an address and save it into your address book. This will make an alias of sorts so that when you create a new mail to an alias of “person” it translates to person@domain.com automatically.
Press D (yes capital) to search for and delete all mail with a subject that matches your expression.
Press D then ~b and expression to do the same within the message bodies.
Press l then expression to filter/search emails.
Press l then ~b and expression to do the same within the message bodies.
Eventually you will want to sync your email and get rid of all the deleted stuff – press $ and enter to do that.
Probably the most helpful is to remember to press ? to get help! 🙂

I hops that helps getting you all started with using this great client! Enjoy!

Sunday, November 13th, 2011

TLLTS Email List

Thunderbird

E-Mail


We just mentioned on the last LinuxLink TechShow that we are starting a mailing list. Our intention is to provide a way to more easily disseminate information during the week to our listeners, have a place for some interesting conversation, ideas and help, and have a sort of virtual user group. If you would like to join in on the fun, point your browser to: https://www.thelinuxlink.net/mailman/listinfo/tllts and sign right up! I’ll see you there!

Thursday, September 23rd, 2010

Personal IMAP mail server

What is a personal IMAP mail server and why would you want one? Well, such a server is, like it sounds, your very own mail server that you can access via IMAP. You might want such a thing because, like me, you have a lot of different email accounts in different places and you want to collect them all into one central and easy to manage location. I also like having more direct control over my access to my email. For example, if your email account at somewhere.com stops working because their server is down and you need to reference an email stored there, you are out of luck, unless you store your somewhere.com email on your own email server where you can still access it even though their server is inaccessible.

Since I am doing some personal server upgrades and migration, I thought it would be great to share just how to get this kind of server up and running with the most minimal hassle.

For starters, my new mail server is going to be a 32 bit server install of CentOS 5.3. This OS is not at all difficult to install at all and it’s enterprise ready, so it’s plenty reliable.

When you have a machine ready with CentOS running on it, you will need to install Dovecot to handle your IMAP mail access. This is just an yum install away:

yum -y install dovecot

You will need to configure Dovecot after the install. Edit the /etc/dovecot.conf file and make sure the following is set and uncommented:

protocols = imap imaps
mail_location = maildir:~/Maildir

CentOS uses a sendmail/procmail mail combo by default, so in order to make sure your server and IMAP are both using Maildir (so your email gets delivered to you locally) you’ll need to create a file called /etc/procmailrc and in it put:

DEFAULT=$HOME/Maildir/

And then restart your mail service (just to make sure):

service sendmail restart

Once that is set, you will need to turn on Dovecot!

chkconfig dovecot on
service dovecot start

At this point, you should be able to (firewall issues not withstanding) connect to your new mail server via IMAP and see that you have no mail. I am assuming that you have set up mail clients before, the only difference now is you will point to “YourNewMailServerName” and set it up for IMAP mail and use your account name and password from “YourNewMailServerName”.

For example, I created a new server called “Pukwudgie.linc.lan” and created an account on it called linc and made a supersecret password. When I set up my mail client to test the mailserver setup, I set it up to point to Pukwudgie.linc.lan using my username of linc and my password of supersecret via the IMAP protocol. I was able to log directly into my new mail account, which was completely empty.

At some point, you will want to SEND some mail from this account. Since this personal IMAP server is just a place to HOLD your emails, you will need to configure your email client to use your ISP’s smtp address to send through. Follow their instructions for doing this. Most ISP’s do not allow you to use any smtp server other than their own these days.

Now for the fun part. You wan to collect your mail from other places and store it here. This is accomplished through the use of fetchmail. You will need to place a “~/.fetchmailrc” file in your home directory. Please refer to the fetchmailrc man page for full details, but in essence mine looks a lot like this:

poll lincisgreat.org user "linc" there with password "itsasecret"

And you can have as many of those lines in that file as you have email accounts. After creating the rc file, you can run fetchmail to get your mail and have it delivered locally on your new server, where you can access it via IMAP. There are several methods of running fetchmail. You can run it by itself and watch the output as it goes each time, you can run it in daemon mode by starting it with the -d command line switch and specifying a time interval:

fetchmail -d 60

Will check for and grab your email every 60 seconds. Or you could put fetchmail in your crontab and have cron manage getting your mail like so:

*/5 * * * * /usr/bin/fetchmail &> /dev/null

Which would check your email every 5 minutes.

Thursday, August 20th, 2009

Command Line Mail

Here’s one for the book…:

I have a script that monitors a process and I want it to email my cellphone (to page me) if things don’t look just right. The problem is that just using “mail” or “mailx” in a script fails because my carrier divines whether or not my return address is real. Obviously a from field that looks like “root@localhost” is just not getting through.

What’s the solution? Enter “mutt”.

Mutt, it seems, will let you specify your from field in the ~/.muttrc file. Also, it works pretty much the same on the command line as mail or mailx. So, I set up mu ~/.muttrc like so:

set realname = "menotyou"
set from = "menotyou@myrealdomain.com"
set hostname = "myrealdomain.com"
set use_from = yes

And then, in the script I send mails like so:

echo "Wow I can send mail!" | /usr/bin/mutt -s "A present for you" myphoneaddr@provider.com

All in one line of course, but BINGO, all the sudden my cell phone springs to life at all hours of the night with information I don’t want to know 🙂

Enjoy!

Thursday, June 4th, 2009

How to ruin an uptime

I had this old Belkin wireless router at home, and I knew it was on the way out for some time now. The symptoms were it would occasionally just stop allowing any new connections. A couple weeks ago I purchased a nice little Netgear wireless router to replace it with, but as luck would have it, I didn’t do it fast enough.

I have told stories here about my penchant for procrastination at home. They are all too true I assure you. It’s sort of like that old adage that the mechanic’s car always is in need of repair Likewise, so it is with the System Administrator as well. I went week by week without the gumption to actually configure this new router and dig through the pile of ethernet cables and power wires to replace the old one. I will have to note, however, that I did take a perverse glee from seeing people in my neighborhood connect to my new and powered on but not connected router and try to surf the web. More on that later….

Back to the old router. As you may have guessed, I waited just long enough for it to die while I was not in a position for an immediate fix, throwing my wife and daughter into the thralls of several hours of internet withdrawal. For some reason, at 3:30 in the morning, it dropped it’s connection to my cable modem and steadfastly refused to grab an address from it again. My internal network was working just fine and you could connect to the wireless here, but could not get out through the intertubes whatsoever.

The fix was lengthy, mostly because of poor planning and much haste to get things running again. I put the new router in place fast enough, but, of course, I had to configure it for my specific network needs. This is where the trouble was. I had to change the base addressing to reflect my normal subnet. That was easy. I also had to change the password. That was a snap. I added in my port forwarding information. I turned off the router’s dhcp (I run a dhcp server). I had to fight through several resets of the router and cable modem to get the cable modem to hand out an address to my new router. The real rub came with my dyndns though. You see, in order for me to get into my email, my mail config points to my dyndns address. Well, due to my piss poor planning, all my dyndns account information was (you guessed it) stored in my email. Can’t get into email because no dyndns, can’t set up dyndns because account info in email. Sheesh, what a pain. I spent maybe an hour trying different account names and a dozen old passwords until I found the right combo.

None of that tells you how the uptime was ruined though. That was just an absolutely stupid moment I had. I take great pride normally in pointing out to windows users that you almost never have to reboot a working Linux/unix system. It’s just not necessary unless you can’t get a shell somehow. Well, I must be working too close to the windows guys because before I figured out why I couldn’t get into my email, I spent a good 20 minutes or so troubleshooting and getting increasingly frustrated until, you guessed it, I played the old “lets just reboot the server and see if that fixes things” card. How humbling it was to lose my 195 day uptime and of course the reboot helped nothing. It really was one of those “I could have had a V8” moments.

So what are some things to be learned form this? Normally I keep a file tucked away that holds all my various logins and account information and passwords. Of course, my dyndns info was missing from this. You can rest assured it’s there now. Although it does not sound like good security practice to do that, there just is no other practical way I can think of to manage all that info than to keep a list somehow. The other thing is, by all means, when you start to get frustrated with a problem, step away for a moment and/or ask someone for advice before you make it worse. I guarantee that if I had stepped away and maybe called Dann or something, I would have realized what a dope was being before I finished dialing the number. Instead I just blundered my way through because I was tired and irritated causing myself even more downtime than was necessary.

Thursday, November 13th, 2008

Check Your Mail


I keep forgetting to publish this post, so I had better do it now before I forget again 🙂

Many of you know that I dig using (al)pine for reading my email. This is especially true on my Acer Aspire One netbook. I like to have fast access to my email and save space on that tiny flash drive and alpine rolls in around 80someodd k. Anyhow, I also mentioned, I think, that I have several email accounts to keep track of that way, in fact 5 for todays purposes, and I use screen sessions to jump between alpine email sessions on the different accounts.

The trouble with all that is, how do you know when or how many emails you have unread on any of the accounts without jumping through them all, all day long? Well, I decided to go to an old standby for a solution…. Fetchmail.

Fetchmail has the ability to poll your email accounts with a “-c” option which means to just get a count and not download anything. This is just what I need and want!

To start off, you need to configure fetchmail. This is done in your .fetchmailrc file or, in my case, from the command line. I set up all my polling connections in a little script we’ll call “chkmail” like so:

#!/bin/bash
fetchmail -c -u lxxxxx -p imap xxxxxxxxxxxxxxxxx.edu
fetchmail -c -u lxxxxxxxx -p imap xxxxxxxxxxxxxxxxxx.edu
fetchmail -c -u linc -p imap lxxxxxxxxxxxx.org
fetchmail -c -u lxx -p imap lxxxxxxxxxxx.org
fetchmail -c -u linc.fessenden -p imap --ssl imap.gmail.com

Simply put, I call fetchmail, tell it to only count “-c” use the protocol imap “-p” and point it at my imap server’s address. You’ll notice on the gmail entry there is an added “–ssl”. That’s because that imap server uses, you guessed it, ssl authentication. No brainer.

Now the only real stumbling point here is you’ll notice I didn’t pass any passwords. Well, fetchmail doesn’t accept passwords when running from the comand line, it always prompts you for them for security reasons. So, in order to get around that, you’ll need to use a .netrc file, where you can specify your login/password information for the different systems. Your fetchmail program will check your .netrc file before prompting you for a password, so that will make our script runnable without human intervention. My .netrc file looks like so:

machine machinename.org
login linc
password ubersupersecret
machine imap.gmail.com
login linc.fessenden
password ohnoyoudidnt

Now with all that done, you can just run that little chkmail script and get an output of your current mail situation any time you want. Or, if you’re like me, I like to have that info on hand throughout the day, so I call that script in a watch command “watch -n 180 ./chkmail”. This will rerun that chkmail command every 3 minutes and put the output in the current terminal. Works like a champ.

Friday, October 3rd, 2008

Webmail

ilohamail

ilohamail


Some times you run into some software that does just what you wanted and no more. ilohamail does just that.

For a long time now I have been running my own mail server of sorts. The short explanation is I use fetchmail to aggregate my email from various sources to my own local home server, which runs imap so that I can get my mail off of it there. It’s a great system with only a couple drawbacks. The first is that I have to use my ISP’s smtp server (they block port 25 to anyone but them). The second is you always have to have access to a mail client, well, until now that is.

Having access to a configurable mail client is not normally a problem, however, there are some times you just want to check your mail somewhere and all you have is a web browser. Tough to do with my setup unless you run some sort of webmail on your home server. Now in the past, that hasn’t been too difficult either, except since I have to push mail through my ISP’s smtp server and don’t run my own, I can’t send mail.

Last night I was browsing around the web and ran into ilohamail (no, it’s not Hawaiian, it’s actually Japanese). Anyway, one of the things that caught my attention about it was you could specify an external smtp server. The other thing was it seemed easy enough to get going, requiring only a webserver and php4 or better.

I actually installed the Ubuntu package, but I can’t imagine installing the source would be any different since it’s all php. Simply enough, you just make the packages ‘source’ directory web enabled. I did that by creating a symlink from my webserver/webmail to that source directory. You can adjust some settings if you wish in the include/local.php file. Other than that, it’s up and running and working! Yay!

Seriously though, I had been looking for something like this for a long time and I have installed several webmail systems to test them out. Nothing has installed as fast and easy as this program. This was literally a 5 minute install and works great!

Sunday, September 28th, 2008