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1. My Only Friends Mac Os Catalina
2. My Only Friends Mac Os 11
3. My Only Friends Mac Os X

If you have more than one computer, you will want to set up a little network. Buy a router, a box that connects downstream of your cable or DSL modem, and that lets you connect several computers to it. For example, the Linksys BEFSR41, about $50, or a wireless/wired router like the Apple AirPort Extreme ($100-180). (An Apple Time Capsule does the same thing and also has a hard drive in it for backup.) Using a router allows you to share the ISP connection with multiple computers, and also allows computers on your home network to communicate and share files.

This diagram shows a network with several types of computer. The local computers are connected by Ethernet cables; guest computers connect by wireless. Wired connections are faster, less subject to interference, and less vulnerable to security attack.

My hard drive crashed on my Imac took it to computer repair they installed new hard drive, tried to recover data but could not, when we presented the imac to the apple store they told me i would have to buy back my old hd from them um hello no way, so thats why we went to another place that works on macs, so apple said i had lion on the mac, i. My friend's cat with an ancient Mac OS 10.1 box from 2001. Posted by 4 months ago. My friend's cat with an ancient Mac OS 10.1 box from 2001. Log in or sign up to leave a comment Log In Sign Up.

For advanced information on home networking, read Glenn Fleishman's 'Take Control of Your 802.11n AirPort Network, Second Edition'.

(Nov 2016) Apple has announced that it will abandon development on wireless routers. So no new Airport Extreme or Time Capsules. I guess this means no more security updates? This is very disappointing.

Configuring Your Router

Your router should be configured as a DHCP Server. That is, it makes up local Internet Protocol addresses for each device on your local network, and sends all devices' outgoing packets out over the the external Internet Protocol address. When a response packet comes back, the router matches up the packet sender with that of a previous request, and forwards the response to the local machine that is expecting it. Unsolicited messages are dropped, protecting your local computers from a lot of attacks.

Some routers, like the Apple AirPort, allow you to connect a USB disk drive, and use it for backup and file sharing from computers on your internal network. I used this feature and it worked OK. Apple now says that this feature is only supported on certain AirPort models; the Time Capsule is an AirPort router with a built-in hard disk.

(By the way, do not configure your router to hide the network name (SSID). This actually decreases security. Make up a random string for the name.)

Security

There have been recent reports of security problems with home routers. Some routers have 'back doors' built into them; others can be hijacked if you visit a malicious web page.

• Set a good password on your wireless network.
• Be sure you have a strong administrator password on your router; don't use the factory default.
• Set the DNS servers on your Mac, for both Ethernet and WiFi, to a public DNS (like OpenDNS) instead of using the default supplied by your ISP.
  • OpenDNS: 208.67.222, 208.67.220
  • Google public DNS: 8.8.8.8, 8.8.4.4
• Search the Web for information on your router: you may have to update its firmware to be safe.

If you are really interested in securing your network, read https://lifehacker.com/how-to-tap-your-network-and-see-everything-that-happens-1649292940

Apple AirPort and Time Capsule Configuration

My Only Friends Mac Os Catalina

Your AirPort or Time Capsule has an administrator name and a password that lets you configure it. Pick a long password.. you won't be giving it often. Uncheck 'allow setup over WAN.' I don't enable 'Back To My Mac.' The 'Internet' tab specifies how your router connects to the rest of the world. This depends on your Internet connection. I set mine to 'DHCP.' The 'wireless' tab specifies how your router supports WiFi. Choose 'WPA2 Personal' for encryption, and pick a random network name and a strong password. You can also create a 'guest network' for visitors to your premises: they won't be able to see your computers or printers. The 'Network' tab says what kind of network your router provides to WiFi devices. Mine is set to 'DHCP and NAT.'

IPV6

Your router may have an option to enable IPV6. (This is a more advanced network address format, that will become widespread in the future.) My Time Capsule has three possible settings: Link-local, Node, and Tunnel. If you select Link-local, then your computers inside your home can talk to each other using IPV6, but nobody from outside can use IPV6 to access them. This is good: it is how mine is set up. You will be able to access sites on the Internet, no matter what kind of address they use. If you select Node or Tunnel, and don't block incoming IPV6 elsewhere, then your computers can be seen and attacked from distant machines.

Hubs and Cables

If you need to connect more computers or devices to your network than there are ports on your router, use an Ethernet hub. Modern Macintoshes can send data very fast, at Gigabit Ethernet speeds, if both ends of the channel can handle this speed. If you buy a router or hub, make sure it supports Gigabit, or 1000base-T, speed. When you are buying Ethernet cables, choose 'cat 6' or 'cat 6A' cables to make sure you get full speed.

Printers

Printers can be connected

1. To your home network, by an ethernet cable, if your printer is 'network enabled.'
2. To your home wireless network, by WiFi, if the printer is 'WiFi enabled.'
3. To a single computer, by a USB cable. (Your computer could then use Print Sharing to let other network computers use it. I haven't tried this.)
4. To your AirPort router, by a USB cable (I haven't tried this).

To use a printer on your home network and print to it from all your local computers (1 or 2 above), it needs a print server. I have a Brother HL-4150CDN printer, and the 'N' means it has a built-in print server and can be connected to a network.

Wireless Networking

If your router supports WiFi, then you don't need wires between the computers and the network. Visitors can temporarily use your Internet connection too. Be aware of the security implications: configure your router to require a name and password, and use WPA-2 encryption.

Understand that WiFi speeds are routinely overstated. WiFi is also subject to interference from other radio devices.

Connecting Your Mac to a WiFi Network

Once your network is set up, you can connect multiple computers, phones, and tablets to the network. To connect a Mac, do this:

1. If AirPort is off, click the AirPort icon in the menubar and select Turn AirPort On.
   
2. Click on the name of the network you want to connect to.
   
3. Select the security method (should be WPA2 Personal), enter the password, and click 'Join.'
4. A check mark should appear next to the network and you should be connected. Your Mac can remember the password.

Configuring Sharing on Your Mac

Other users on your network can use files on your Mac if you enable file sharing. Select ► System Preferences... ► Sharing to open the Sharing control panel. This is where you choose a network name for your computer. You can also enable many kinds of sharing: File Sharing allows other computers to access files on your machine. Screen Sharing allows computers to see your screen and move your mouse. You only have to enable sharing once, and it will remain enabled till you turn it off, even if you restart the Mac. Do not enable features unless you understand their security implications.

File Sharing Between Macs On Your Network

In order to access files on another Mac, call it Al, on your network, enable sharing on Fred as described above. Open a Finder window. Navigate it to the folder containing your local files, or where you want to put files you copy. Open a second Finder window with command-N: you will use it to view a folder on the remote computer. In the left sidebar you will see a heading SHARED, and under that the name of the remote computer, e.g. Al. Click on it.
On the first visit, the Finder will ask you for a password. Give the name and password of the computer's owner and check remember this in my keychain.

If you don't see the remote computer you want to share files with, type command-K in the finder, and enter afp://machinename.local/.

Now you should have a list of folders you can open on the remote computer.
Double click on the folder you want and navigate around as usual. When you drag file or folder icons between the two finder windows, they will be copied from one computer to the other.

When you are done sharing files between computers you can click the little eject button (⏏) next to the remote computer's name in the Finder side bar, to disconnect. If you don't do this, you will get a warning dialogue when the remote computer reboots, and files could be damaged.

Screen Sharing Between Macs

If you click Share Screen when you open up a remote Mac in the Finder, and if you have allowed screen sharing in its ► System Preferences... ► Sharing, then the Screen Sharing application will launch on your computer, showing the screen of the remote computer. You can drive the cursor and send mouse clicks to the remote computer, and type into its applications. This can be very valuable for configuring remote computers, recovering from bad video settings, and assisting other Mac users.

Screen sharing like this can be done across iChat to view and control a remote Mac anywhere, which can be very useful for remote support of friends and relatives.

Networking with Windows Computers

You can do some file sharing from your Mac's finder to Windows computers on your home network. I don't use this much, and sometimes it is complicated, so I won't go into it here. A simpler alternative is to install Dropbox on both Mac and Windows.

Accessing Linux and Unix with ssh, scp, and rsync

(For advanced users.)

I often use scp, rsync, and ssh to access Linux and Unix computers on my network (and elsewhere). These are commands that come with every Mac (install the developer tools). These commands will also work for Mac to Mac (since Mac OS X is based on FreeBSD Unix). (I tried screen sharing with a Fedora Linux computer, and it popped up a dialog box asking permission, but then nothing happened.. need to debug this someday.)

You can type man ssh in a Terminal window to get standard Unix help, useful to Unix programmers.

Setting up SSH keys

These commands will keep asking for the password of an account on the remote system, which gets tedious. You can arrange things so that you only have to give a password once.

• Use ssh-keygen -t rsa to generate a key pair. It will ask where to store the key pair and a new passphrase to secure it.
• Use scp to copy the public part of the key to the remote computer. On the remote computer, concatenate the public key onto .ssh/authorized_keys (access on authorized_keys must be 600 and on .ssh, 700).
• On the local computer, use ssh-add to load each private key into ssh-agent so that you are only asked for passwords once per login. (OS X starts ssh-agent when needed.)
• You can use scp on the local computer to copy files to or from the remote computer, without giving a password each time.
• You can use rsync on the local computer to copy whole subtrees to the remote computer, syncing directories on the two computers one-way or two-way.
• You can also set up svn on the remote computer so it can be accessed over ssh.

For example, I do this command to sync my home directory from my laptop to another computer (all on one line):

rsync -avzu --blocking-io -e 'ssh' --exclude .Trash --exclude Cache/ /Users/thvv $user@$host:/Users

where $user and $host are shell variables set by the export command.

Home FAQ© 2010-2021, Tom Van Vleckupdated 2021-04-18 09:15

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