[How to] Remove Nginx and re-activate Apache2 on Ubuntu 14.04 - General Questions and Answers

Hello everyone, this is an off topic article I assume. But, can be helpful if you are using Ubuntu 14.04 with Apache2 and want to get rid of Nginx server packages.
Basically, I was having some trouble on one of my VPS. I run a crypto currency block explorer on http://explorebtcd.info and some other apps. I use Apache2 as my web sever. The system is not stable yet and sometimes it restarts. When it does, somehow it activates Nginx instead of Apache2. Had this type of trouble for a month and finally found the solution.
Wrote all the steps and commands I've taken in this page How to completely remove Nginx and re-activate Apache2?
This should be working with other versions of Ubuntu and some other debian variants as well. Probably you need to use a bit different command. Hope this helps to any one who is looking for this.

Related

WIFI GUI

Here is an idea I have thought of:
Making a GUI (root needed of course) applaction for turning on/off and managing WIFI routing. Basically, it would package the tethering script, and give the ability to see who is connect/block/etc. Possibly even mac filtering down the line.
My one main stumping block is that I would really love to get a little DHCP server running on it in the background, so that it would be much easier to manage. For instance, say I am on customer site with my coworker, and there is no net access. I would like to just allow him to autoconnect with out having to go through the process of setting up a new static ip and having him need to do that on the client side.
I went through the current linux distro on the phone, and, not surprisingly did not find dhcpd One solution that I am thinking of is to install debian, and get one that way, but that would not work too well as it would also require users to install debian and apt-get dhcpd.
Another thought that I had was to extract the files from the .deb, and include them in app, and have it just copy the files to the proper places (include shell script) then call out to dhcpd start/stop when needed.
The last option would be implementing a simple DHCP server in Java, kind of my last resort, as I am not even sure the API access to java.util.net.*
Just found this:
http://www.dhcp.org/javadhcp/
Seems to be J2SE compliant, so I am thinking (if the android JVM is compliant) it could be leveraged as a simple DHCP server. I still like the idea of using a premade linux one though
See other thread..
very cool.... dnsmasq is the way to go me things

[Q] (Q) Serving up the best solution. VNC Server on Android

I am new to BeagleBoard and Android Development. Recently I had someone literally drop a Android Dev project into my lap. Sweet! He gave me a BeagleBoard and three main objectives. 1. Get android working on BeagleBoard. (completed) 2. VNC Server running without being "rooted" or needing ADB. 3. Ethernet over USB. (usbnet may work just fine) After extensive research I found no usable open source vnc server for Android. (I'm sure I may have missed something with Google or here on the XDA-dev forums. I'm thinking of porting a open sourced java based VNC Server over to Android and am needing suggestion and tips. My main questions is this, must a VNC server require root access to Android or is there a way around this. My client was pretty specific on this requirement. I am using TI-Android-Gingerbread-devkit on a BeagleBoard XM Rev B. the rom is on a 2gb sd card (would a 4gb be better as I may have to purchase that an invoice my client. Something I'd rather not do) So to reiterate, what would be the best way to get a VNC Server running on Gingerbread without the need for ADB or root accress? Thanks for all the great people here and thank you XDA Developers for having such a great site (also thanks for the HTC Inspire tuts that I'll need once I get my grubby hands on it after this project is over )
In this thread is a VNC server being developed: http://forum.xda-developers.com/showthread.php?t=710805
Thanks, I knew I missed something.

IPv6 - now working on Android! (no matter if your provider supports it)

I searched xda-developers a lot about IPv6 (Android related) but only questions, no one seamed to get it to work. Now I got IPv6 working on my Android phone and I want to share it.
Of course I can not held any responsibility for anything. I am no developer, just a user, who used Google a lot and who put a lot of single things together. Rather I am not sure why it works, but it does work.
Quick guide:
1. find out if Linux (Debian) is available for your Android phone and learn how to use it
2. find out if a tun module or a kernel with tun support exists for your phone
3. learn how to use IPv6 on Windows (if you are a Windows user) (I was happy with gogo Client at http://gogonet.gogo6.com/page/download-1) and on normal Linux (normal in meaning of running on PC) (I used miredo first)
4. learn what aiccu is and how to use it on PC
5. install Linux (Debian) on your phone
6. load the tun module (or use a kernel with tun support)
8. register aiccu
9. request tunnel at aiccu
10. install aiccu on your rooted Android phone (with tun) inside Debian chroot
11. done, test "ping6 ipv6.google.com" inside console, should work, and test in Android stock browers, it should also work!
Comprehensive guide:
First of all, before you start fiddling with Android and IPv6, which is quite tricky, I highly recommend to learn how to use IPv6 on Windows (only if you are a Windows user) and on some Linux distribution (Debian or Ubuntu recommend, as Debian is imho the most easy to get Linux for our Android phones).
On Ubuntu, which was running in VMware, I installed a package called miredo.(used this guide https://wiki.ubuntu.com/IPv6 look for miredo) It is a great piece of software. I just installed it and afterwards an apache2 webserver and the server was reachable from outside the virtual machine. Furthermore I did run another virtual machine with XP, both virtual machines, XP and Ubuntu where behind NAT (standard network configuration in VMware, setting up port forwardings is quite complicated) and also my router has a NAT and Windows firewall on host computer was also activated. Still... From the XP virtual machine I could access the apache2 running on Ubuntu. Great. You do not need VMware to learn how to use IPv6, of course, you can also use real hardware, but for me, VMware is very convenient.
Also learn what aiccu is and how to use it (https://wiki.ubuntu.com/IPv6#Get_connected_with_SixXS).
After you just learnt how to use IPv6 on normal Linux (normal refers to the normal end user version, no hacked stuff for Android) you have to learn how to use Linux (Debian) on your Android phone.
I used this guide http://forum.xda-developers.com/showthread.php?t=1254283 but you will need another guide for your phone, because this is phone specific. Google the name of your phone in conjunction with chroot, Android, Linux, Debian or search xda. It may not be possible to install Linux on all Android phones. I do not know that and I can not help you with that because I am a Linux noob. Of course, maybe you don't have to use Debian on your phone, I just like Debian because imho you'll find most informations in conjunction with Android about it and because it's more newbie friendly in general compared to other Linux distros. So maybe you prefer some other distro.
Then you need to get a tun module for your phone/kernel or a kernel with tun support for your kernel. Load the module.
You need to register for aiccu and also request a tunnel.
Afterwards, last step, install aiccu. I think I edited aiccu.conf and entered username and password.
ping6 inside Debian chroot is working for me and also in Android stock browser I can access IPv6 websites.
There are quite a lot requirements and things to learn before, I am sorry, because I can not ease this process.
Right now I also can not tell you nothing about how stable this works, how reliable it is or what the benefits are.
Update:
Working - 3g connection on phone (everything only IPv6 of course)
- apache2 webserver
- SSH server - access with Putty
- SFTP - access with FireFTP or WinSCP
Native aiccu for Android
Some time ago, I hacked together a native aiccu port for Android. I only tested it with AYIYA tunnels. It worked greatly both on Android 2.1 in a Xperia X10 mini pro and on Android 2.3 in a Galaxy Tab.
To use, copy the aiccu-android-bin.7z contents to your phone and put your config at /data/aiccu/aiccu.conf.
Please note that you HAVE to use the provided "ip" executable. The one provided with busybox is incomplete for usage with aiccu, and won't work.
The aiccu-android-src.7z contains the source code if someone is interested in hacking deeper. In particular, testing heartbeat tunnels and seeing if any changes are needed to the source would be nice. Also, cleaning up and trying to push upstream would be great.
Nice thx
Sent from my MB860 using Tapatalk
thotypous said:
Some time ago, I hacked together a native aiccu port for Android. I only tested it with AYIYA tunnels. It worked greatly both on Android 2.1 in a Xperia X10 mini pro and on Android 2.3 in a Galaxy Tab.
To use, copy the aiccu-android-bin.7z contents to your phone and put your config at /data/aiccu/aiccu.conf.
Please note that you HAVE to use the provided "ip" executable. The one provided with busybox is incomplete for usage with aiccu, and won't work.
The aiccu-android-src.7z contains the source code if someone is interested in hacking deeper. In particular, testing heartbeat tunnels and seeing if any changes are needed to the source would be nice. Also, cleaning up and trying to push upstream would be great.
Click to expand...
Click to collapse
Very nice. This simplifys the process a lot.
Unfortunately this does not work on my x8. Maybe because busybox is preinstalled with my ROM?
When I do acciu test, it complains about the ip executable. But I already copied both.
Can I get ride of the old buybox ip? Should it work on x8 as well?
T-Mobile USA has an beta native IPv6 service for ICS Nexus S and Galaxy Nexus UMTS phones. You can google the details. It is natively supported on the stock ICS software now using the UMTS network.
New solution:
https://code.google.com/p/gogodroid/wiki/GogoDroid
drawback:
needs ROM (kernel) with TUN (but any app could null that dependency)
First of all thanks for your work of putting all these information together!
I am using a Galaxy Nexus which allready has tun built in to the stock rom (ICS 4.0.4).
Unfortunately I cant get gogoDroid working. It seems it doesnt recognize the built in tun functionality.
So I tried it with the tun.ko module - no luck there neither, since there is no compiled version for the IMM76I Build :-(
Any suggestions on how to get it working anyways?
Edit: I also found another app which supports 6to4 tunneling called IPv6Config - you can find it on the Play market. Unfortunately 6to4 doesnt get thru NATted mobile networks...
Hello all !
Sorry to dig out this old thread again but here some infos about running IPv6 tunnels on a rooted Android phone.
I wrote a little app to simplify the installation, configuration and running the binaries posted by thotypous:
The app is called Androiccu and you can find it in the google market. Sorry, I'm not old enough to be allowed to post a link to it.
It's still in an early development stage but it does basically work for me and I would enjoy some feedback about success or failure.
This application downloads and installs the binaries, creates a config file with your login infos and can start and stop aiccu. All from a GUI, no need to play on a terminal.
Cheers and have fun testing.
why tunnel when you can have native ipv6 https://sites.google.com/site/tmoipv6/lg-mytouch
elgato99 said:
why tunnel when you can have native ipv6
Click to expand...
Click to collapse
Because most mobile network operators don't provide native IPv6 yet. You're among a few lucky ones that has such an operator. I'm not. When i'm at home i don't need this app as my router provides natively an IPv6 address to my phone over the wifi network. But on my router itself i have to run a tunnel as well as my provider is also not able to provide IPv6.
The biggest aim of this application is to become quickly obsolete when finally all mobile network operators will be able to provide IPv6 natively.
Best regards,
Martin
ty for info. my phone now running sixxs and route it on hostpot.
core7x said:
ty for info. my phone now running sixxs and route it on hostpot.
Click to expand...
Click to collapse
I have a sixxs tunnel. But how can I route this to wifi tethering? My ipad is connected to the wifi hotspot from the android, but the ipad can not resolve ipv6.google.com, but the android can do this.

Linux/Android help for a beginner

Hey all-
I'm very interested in learning Linux in order to not only do cool stuff at home with my own computer, but also to perhaps be of service in developing ROMs and give back to the devs who've helped breathe life into my ol' OG Evo for nigh-on two years now. If I ever got to the point of doing some 'grunt work' and helping out on a project, that'd be awesome for me.
Here's where I'm currently at with Linux: I've followed instructions to dual-boot Ubuntu on my Windows 7 laptop (yay!!!!), but other than installing Chrome and using all my Google services (Gmail/Docs/etc.) through that, I'm not really sure what else to do in order to become fluent with Linux. It's kind of like reading a book on how to build a car, but not knowing one end of a wrench from another.
Here's where I'm at with Android: I can follow instructions to root my phone, flash ROMs, install the Car-O-Dope tweaks on GB ROMs using System Tuner and ROM Toolbox, and most basic things that include using Smelkus' recovery (flashing, wiping, nandroid/restoring, etc). I'd say I know more than the average Android user, but certainly not as much as the experts here.
I've looked on a variety of forums both here and on Ubuntu's site, but I'm not really sure how people got their start using Linux and how they progressed from there in terms of fluency with Linux, applying that to Android developing, and also generally using it as a 'one-stop shop' for home use. I've read about people being able to build HTPCs on the cheap, using a computer as a file server/web site host (my wife's a graphic designer, but hates technology, natch)/media streamer/home security server, but as soon as the instructions get to "Ok, now open up your command line and follow these 28 steps......", I get a bit gun-shy.
If anyone's got any helpful tips on how they got started, any good beginner's guides (project-oriented would be great, just as reading a book on speaking a foreign language is no substitute for conversing with a native/fluent speaker), and how they grew in fluency or just any general advice, it'd be greatly appreciated. I'm putting this here and spreading it around in the hopes that some of the WAY talented XDA devs and members I've read so much from will toss a bone in my direction.
Thanks for reading and for any help!
Get very familiar with Terminal. For Android dev or otherwise, it is essential. Reading man-pages is also good to learn new commands better. In Terminal, just type "man man" minus quotations. That will get you going.
Sent from my PC36100 using xda premium
You should definitely make an effort to become comfortable with the Linux command line environment (also known as Shell, the most common Shell currently is BASH).
Try giving yourself some useful activities to do, such as: setting up a home file server with Samba, setting up a media streaming server (DLNA - Plex Media Server is a great program for this), just little things like that.
Before you know it you'll be a pro
markinaus said:
You should definitely make an effort to become comfortable with the Linux command line environment (also known as Shell, the most common Shell currently is BASH).
Try giving yourself some useful activities to do, such as: setting up a home file server with Samba, setting up a media streaming server (DLNA - Plex Media Server is a great program for this), just little things like that.
Before you know it you'll be a pro
Click to expand...
Click to collapse
So, is Bash something I download/install, or should it be already 'packaged' in with Ubuntu?
go to the development forum on ubuntuforums.org and find out how to upgrade to ubuntu 13.04. As that version is currently in development you should get a chance to learn a few things. That's how I learned modern linux distros. Also setting up and playing around with Ubuntu server edition might be helpful.
For app development Google some Java tutorials. Once you get the beginners stuff out of the way you should be ready to learn android development with your new Java skills.
Sent from my GT-I5500 using xda app-developers app
---------- Post added at 06:01 AM ---------- Previous post was at 05:47 AM ----------
just using Ubuntu for your day to day tasks should also help. When the other Guy was talking about bash he was talking about the terminal in Ubuntu. its a command line that lets you enter various commands. Google 'Ubuntu terminal' for more info
Sent from my GT-I5500 using xda app-developers app
Joshmccullough said:
So, is Bash something I download/install, or should it be already 'packaged' in with Ubuntu?
Click to expand...
Click to collapse
No Bash is something that is already packaged with Ubuntu, it is one of the most essential elements of Ubuntu (and Linux in general) because it gives you a means of interfacing with everything else. If you have a type of Linux with no graphical interface, then the shell is your only means of interfacing with the operating system at all.
So in short, yes Bash is packaged with Ubuntu and every other kind of Linux out there (if it's not, a different shell will be packed with it, but Bash is the most common one).
Maybe something for later but I have seen a number of different Dev threads about getting started with AndroidDev, I know that I have seen at least about 10, all from different perspectives/starting points. One that I could find easily was the following:
http://forum.xda-developers.com/showthread.php?t=1778984
Check it out. Basically, says ... Linux (fundamentals), CLI (command line interface or shell, fluent), Java (fundamental), XML (medium), SDK (medium) and Time - to start with at least. Hope that is useful.

[Q] Turning a broken nexus into a Linux computer

Hi there
After a tragic accident the touchscreen of my Nexus S lost its touch- prefix. I'm thinking into turning it into a linux machine to use as a small home server (I have many uses for those, I'm using serveral Raspberry Pi for this purpose), and I'm looking for the best solution.
I'm open to any Linux distribution (even if I am quite more familiar with debian derivatives). If possible, I would like to get rid of the Android stack itself because it is quite useless without touch input. I won't use a SIM card in it so I only need Wireless LAN.
Here are the options I have found so far :
- Using Ubuntu Touch and hoping it can be accessed with SSH and used like a "normal" distro (I had no luck installing it yet, but I will find out eventually)
- Installing Debian in a chroot over Android, but I don't know if it is possible to do with only adb access. This would not get rid of the Android stack but at least I would be sure to have a functional wireless stack.
Does anyone have pointers to how to achieve this ? Or other solutions ?
Thanks !

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