1 1 00:00:00,370 --> 00:00:01,700 line:15% Hi, and welcome back. 2 2 00:00:01,700 --> 00:00:02,690 line:15% In this video we're gonna look 3 3 00:00:02,690 --> 00:00:06,220 line:15% at installing MongoDB in our server. 4 4 00:00:06,220 --> 00:00:09,200 Installing MongoDB in Ubuntu is really easy. 5 5 00:00:09,200 --> 00:00:13,373 We'll start by doing sudo apt instal mongodb, 6 6 00:00:14,360 --> 00:00:16,170 then just press Enter when it asks you 7 7 00:00:16,170 --> 00:00:17,370 if you want to continue. 8 8 00:00:19,290 --> 00:00:20,160 That's it. 9 9 00:00:20,160 --> 00:00:22,680 That's MongoDB installed and usually 10 10 00:00:22,680 --> 00:00:24,960 it'll already be running. 11 11 00:00:24,960 --> 00:00:26,090 You can check whether it's running 12 12 00:00:26,090 --> 00:00:28,900 by doing sudo systemctl, 13 13 00:00:28,900 --> 00:00:30,430 which is the system controller, 14 14 00:00:30,430 --> 00:00:32,800 status mongodb. 15 15 00:00:32,800 --> 00:00:35,870 And, here you can see that it is already running. 16 16 00:00:35,870 --> 00:00:39,420 That's because installing MongoDB in this way 17 17 00:00:39,420 --> 00:00:41,380 sets it as a service. 18 18 00:00:41,380 --> 00:00:44,890 That means that it already will run 19 19 00:00:44,890 --> 00:00:46,910 when your server restarts. 20 20 00:00:46,910 --> 00:00:48,120 If you want to disable that 21 21 00:00:48,120 --> 00:00:52,940 you can do sudo systemctl disable mongodb. 22 22 00:00:52,940 --> 00:00:53,990 If you do that you'll have 23 23 00:00:53,990 --> 00:00:56,804 to start and stop MongoDB manually. 24 24 00:00:56,804 --> 00:00:59,030 Of course, you can do sudo systemctl start mongodb 25 25 00:01:00,640 --> 00:01:05,340 to start it or you can do sudo systemctl stop mongodb 26 26 00:01:05,340 --> 00:01:06,173 to stop it. 27 27 00:01:07,610 --> 00:01:09,260 If you've got MongoDB installed, 28 28 00:01:09,260 --> 00:01:11,340 that means that you can do mongo 29 29 00:01:11,340 --> 00:01:13,970 to connect to MongoDB and you can see 30 30 00:01:13,970 --> 00:01:15,160 that this has connected 31 31 00:01:15,160 --> 00:01:17,260 and it doesn't give you an error. 32 32 00:01:17,260 --> 00:01:20,790 So, you can go ahead and use MongoDB 33 33 00:01:20,790 --> 00:01:23,040 as we had it installed here. 34 34 00:01:23,040 --> 00:01:26,490 Now, you do get a couple warnings 35 35 00:01:26,490 --> 00:01:28,950 when you are using MongoDB. 36 36 00:01:28,950 --> 00:01:30,780 The first one is about the file system. 37 37 00:01:30,780 --> 00:01:32,840 Using the XFS file system is strongly recommended 38 38 00:01:32,840 --> 00:01:34,780 with the WiredTiger storage engine. 39 39 00:01:34,780 --> 00:01:37,860 This is a warning that we can't realistically action 40 40 00:01:37,860 --> 00:01:41,730 when we're using an Ubuntu version of DigitalOcean. 41 41 00:01:41,730 --> 00:01:43,370 That's because it's asking us to use 42 42 00:01:43,370 --> 00:01:46,120 an entirely different way of storing our documents 43 43 00:01:46,120 --> 00:01:48,410 than what DigitalOcean provides. 44 44 00:01:48,410 --> 00:01:49,560 You can maybe change this 45 45 00:01:49,560 --> 00:01:52,640 but it would be a little bit tricky. 46 46 00:01:52,640 --> 00:01:54,460 The other one is that access control 47 47 00:01:54,460 --> 00:01:57,010 is not enabled for the database. 48 48 00:01:57,010 --> 00:01:58,670 At the moment that's not a problem, 49 49 00:01:58,670 --> 00:02:01,590 this becomes a big problem if your database 50 50 00:02:01,590 --> 00:02:04,140 is open to the outside world. 51 51 00:02:04,140 --> 00:02:06,320 Now, your database at the moment 52 52 00:02:06,320 --> 00:02:09,580 is only running locally in the server 53 53 00:02:09,580 --> 00:02:10,920 that we're currently in. 54 54 00:02:10,920 --> 00:02:13,960 That means that only a logged in user to the server 55 55 00:02:13,960 --> 00:02:18,420 or an application running in this server can access MongoDB. 56 56 00:02:18,420 --> 00:02:21,490 If you want applications in other servers 57 57 00:02:21,490 --> 00:02:23,180 to be able to access MongoDB 58 58 00:02:24,100 --> 00:02:27,190 then you need to setup access control, 59 59 00:02:27,190 --> 00:02:28,910 that is so that 60 60 00:02:29,830 --> 00:02:32,310 other applications only have read and write access 61 61 00:02:32,310 --> 00:02:33,963 to certain data. 62 62 00:02:34,810 --> 00:02:37,230 Something else you can setup for extra security 63 63 00:02:37,230 --> 00:02:39,630 in the server, even though only applications 64 64 00:02:39,630 --> 00:02:41,580 in this server can access MongoDB 65 65 00:02:41,580 --> 00:02:43,490 is some access control anyway 66 66 00:02:43,490 --> 00:02:45,710 so that only certain users 67 67 00:02:45,710 --> 00:02:49,010 can access certain databases in MongoDB. 68 68 00:02:49,010 --> 00:02:52,110 Think of it as another layer of user accounts 69 69 00:02:52,110 --> 00:02:54,230 just for MongoDB. 70 70 00:02:54,230 --> 00:02:55,100 We're not going to look 71 71 00:02:55,100 --> 00:02:56,700 at setting that up in this course 72 72 00:02:56,700 --> 00:02:59,610 but the MongoDB documentation is quite good 73 73 00:02:59,610 --> 00:03:02,810 and it guides you well through how to set all of that up. 74 74 00:03:02,810 --> 00:03:04,210 So, again, particularly important 75 75 00:03:04,210 --> 00:03:05,960 if you wanna open up your database 76 76 00:03:05,960 --> 00:03:07,130 to the outside world, 77 77 00:03:07,130 --> 00:03:08,880 for example, if you have multiple servers 78 78 00:03:08,880 --> 00:03:12,940 that wanna interact with one central MongoDB server, 79 79 00:03:12,940 --> 00:03:14,493 or if you want extra security. 80 80 00:03:15,680 --> 00:03:17,310 But, that's MongoDB installed, 81 81 00:03:17,310 --> 00:03:18,220 if you wanna exit, 82 82 00:03:18,220 --> 00:03:21,350 of course you can always do Control + C 83 83 00:03:21,350 --> 00:03:23,510 and remember that as you restart your server 84 84 00:03:23,510 --> 00:03:25,570 MongoDB will start running again 85 85 00:03:25,570 --> 00:03:26,510 so you don't have to worry 86 86 00:03:26,510 --> 00:03:28,850 about stopping it and starting it. 87 87 00:03:28,850 --> 00:03:30,990 That's it for this video, thank you for joining me. 88 88 00:03:30,990 --> 00:03:32,440 I'll see you in the next one.