mirror of
https://github.com/tboerger/nixos-config
synced 2024-11-22 18:21:58 +01:00
chore: rekey secrets for niflheim
This commit is contained in:
parent
6102f53a69
commit
99d8c3627b
@ -3,10 +3,11 @@ let
|
||||
users = [ thomas ];
|
||||
|
||||
chnum = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFmxTCjjLZL+pFZU1A8ylZbMPF8SD5NtkJ001z2mx0i4";
|
||||
niflheim = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAII3ImHUkd2Kt+jYqSIfn3Zq0n0kv2cRM6c7O0E17JMjJ";
|
||||
midgard = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICGC6aSeeKiMO9y3NMxPOh2JvvGYcyS4za+0+hSqI3Bj";
|
||||
asgard = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIE2yYJUssGAmPBv5QBQJTZfwyl0HSgYMQjssG2hjk63+";
|
||||
utgard = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIDv7Ua1agDUdEo+0uSr99qlhFGsyte+jgf1Z3M+veuq7";
|
||||
systems = [ chnum midgard asgard utgard ];
|
||||
systems = [ chnum niflheim midgard asgard utgard ];
|
||||
in
|
||||
{
|
||||
"services/acme/credentials.age".publicKeys = users ++ systems;
|
||||
|
@ -1,16 +1,17 @@
|
||||
age-encryption.org/v1
|
||||
-> ssh-ed25519 ptT1OQ oIfE1Q23YrIeyPXCc2YW6oCvfcC2nljyF4/1uAbSVn4
|
||||
8wUqBpFA5nLKUI/yrc7zXYAiEXcpiG4PfumluLcQOsE
|
||||
-> ssh-ed25519 RlXbCA x3Zlz+mXGY+tdyttQosZzQVFQPdUDRzT/vz5aTn4bVc
|
||||
Nap5N9KQMKEUItJ/dBeKi62pUy3doUk0E3qsgO69tds
|
||||
-> ssh-ed25519 vDK6kA o1MJJG46XRQwG06CEDxCAj7WVEnn/P2vesizcdC51l0
|
||||
+utgWINWDVoDlc8CN/OHzJZrHmrxPkG86TO8FWrPpS4
|
||||
-> ssh-ed25519 mO4+dg TQR1V/rJAiRcgOA1DUGet07h2ddScMzhW9k7iqVAnzY
|
||||
m7fnSevOW3kJe4SXNM09yD783RaFrk1gQPXxZowO+jQ
|
||||
-> ssh-ed25519 IYHv1g rKgVyOTjsIZv/VKRVSl3pfLe5ExGv45iB6FmA3ChSx8
|
||||
zxt0apxwwhZxma2wT/ZSt4VMkyytbSdFBnJ3y9sDHLU
|
||||
-> d-grease DD0[ ia[!D:C
|
||||
OimwM6s6k5sOOdq4KttH36bMkS572/pgAI55QyFf+mHfE5x29dVALq9qGYvpX0cP
|
||||
/PYRIN2uSK5btJR4vLlttsqoJCjuj//iYrTPw/YAabLVWoYRPfqfN2oY
|
||||
--- 1Bm1HnECd269TIxdqaRVbTUiTi9fIHeAfii6AAlhh4k
|
||||
ˆ³~í<çŸdôªzÉP]$”.úËÓvÆÜÅ4rä’85Ì3b¹µŸOJ5<4A>ä~¾V3µaŽj–¨Ž<C2A8>‡Ú¶8`]’âT}[r|¿ËP²á\‘%‘ç—q„·I¡A2È!…ª57èÚ›ï/9<04>œç>oû
×DF&š$¬
|
||||
-> ssh-ed25519 ptT1OQ q/vehx3d7bZ252RAauTYT9AM99/2E3EiDqpmJimTfFo
|
||||
fGptNnngzJHliZWO7PA2xxwb3hapuN4Sm29w6oq3ovE
|
||||
-> ssh-ed25519 RlXbCA pbjSg+D69on8yo3mRkUqTARaVL4kJd5/ccGfpNl2fA0
|
||||
A01OVo5o5Dg38bcNHYOrTbMNEAG6oAdW5lXuVCn0BtE
|
||||
-> ssh-ed25519 10quTA FenmUmcreUz7y7blyC3dnZwLDkIgSAJV1jGvc02pckk
|
||||
qqZ/ytofdlQmNHSmeierGZAqlMd6+K6vm54nu1IcwHI
|
||||
-> ssh-ed25519 vDK6kA k1uxA3tUesZXFMdraciGJ0jX9lueAbWbRIwmztTNpys
|
||||
AzcrQOu97djpRQcD5WTxGEkIqCWc3d4T36Dz1Vx95CU
|
||||
-> ssh-ed25519 mO4+dg TRC09am9swk1E442efqIFZcHhjQCRXBUkX+QWjvW2Us
|
||||
aH8IBeHY90QVmz23EcyYTwY6Ne+9cDUqT6aB4ASyw5w
|
||||
-> ssh-ed25519 IYHv1g UYrAo+4yaEykZ/pBGaNbS2s5NhPrK4L7EA2t0+SUllI
|
||||
1YEz9APnUdCVfgdXu7sGjzfk/iZljo03GgDhr0OQwEQ
|
||||
-> /uY-grease ZU$L@
|
||||
222VqSnYp6MN7tVV8geMu1QeAD3Vz3OUMaM/Kwg
|
||||
--- nrPwqqxWm9c2UbxlTn8aNHR1otq9ViYRPLFd+mFJZU8
|
||||
kQrçÖŸfÈ]¡XHZ¦q:‘Cm*´f(Ì#¼iKN<‚zú`K®1Ï,³Ï¸zÜõoi‚€èo©U+]̧ÛÓSA5¨ÈÛIÌNo@‡Fmp¨1ùe`àKПg·/z¡\Ô«“tý™±ÔaŒè87‹Ájéž{}À
|
@ -1,15 +1,19 @@
|
||||
age-encryption.org/v1
|
||||
-> ssh-ed25519 ptT1OQ prHkFMYQHqW4qS/sKpEX+LHpo54ateOOYv30HeVgm2s
|
||||
19kdWxPzsPBRdULcC3+nK0OVT72RlkWusj+uQDURO6k
|
||||
-> ssh-ed25519 RlXbCA hv5qfS2xT/9gmmybkJJJeGE2/mvZjB6xYt3Fo0lAJAI
|
||||
ThLsjMiG2yIJVxxx+zrimuT61Qggs6y5CI3IiynRIlg
|
||||
-> ssh-ed25519 vDK6kA br4zgA63bstEPhIqsedCN49Re8+qssD8b1jVzd1pf0w
|
||||
g3sF9CFa9I6p0NWGuY8LjKQLEnPgrDMj3JxlrveKTlM
|
||||
-> ssh-ed25519 mO4+dg drc30fPBmhTDDUGQF9ZGQVHk4DDtgkAmJeKZ79njYWM
|
||||
WzoVF5MYhLjIiR6cG0Jb5mzf62E0AZ7WJg1WCCeRoR8
|
||||
-> ssh-ed25519 IYHv1g dyM+xQmxux8jyXNqKKrJy2bLBvNAhwKBo5+R/vMuWRc
|
||||
V6OUT44ny4ljTdc+3V81dJuyFZoNNz33a10/CxwcT2g
|
||||
-> 2-grease
|
||||
XNsbM2HvHiiGsYA45fCxxGtQm/fWIKhTXQJpZQ
|
||||
--- Aati7J5iTbeIbo3TUrVwxKslFenRNtpMvLeIgcCdqM0
|
||||
l./¾»mpŽô±/ëÅßg¾¢7Ehe]0Q ð€´³jŽÕ7¢¤Ö%«§–·*0×B²ÇÊ›Á‡î]IxfÝ•@˜<>”,ô*AÛç¬=€$q‹¿ålÀ#2>vZYo×StZÒ¦»ðZ
N£ãúá<C3BA>´ßˆˆCŽ¸
|
||||
-> ssh-ed25519 ptT1OQ ZIqMnwn07ReBqEyeAoxzPTyOYsmFcBEWLc5DVpJHo0c
|
||||
fFjX8Zp1s2QZyribKX3Mxb0J/8pXkxj8FYBzoim0J6Q
|
||||
-> ssh-ed25519 RlXbCA UI5nPnaS1tDLFZ63gbSGx2bTLCD4dL0mXivHTw3jfQ4
|
||||
ib1ipXQgdQSjEmyIHuRp8hbsswvPyw1VlKMYeM3hWn0
|
||||
-> ssh-ed25519 10quTA BSqMSK7znNGMar6wZHHXrfzRJxAuveU6SlYHEbjE3Bg
|
||||
4ShbHqPS6QDyV+Oqp9dSWa7ijmzvZAVhCbovwU7KC3A
|
||||
-> ssh-ed25519 vDK6kA JhqAP5GP3IwUGL+XEnMTdhCJPKJfTxt8yYCdD3C7mE4
|
||||
f3uk5ERnA+umPw7bQIX5LsaAm9j1j99XtKXQ1AVgHn0
|
||||
-> ssh-ed25519 mO4+dg Bbim/zjlW49l/m+6gn9nxswSIjHg4GyOYucA3yW0KXc
|
||||
HnLPyAsPs7fN/wuElbNL3CZFLpLMOJatw2CGEiKKTtA
|
||||
-> ssh-ed25519 IYHv1g 9q+nP5rK2zm1UCUb3MSQqecy9pCO6FbHOFlM5YZJ02g
|
||||
3oC3iOEyA0nipMudvOZH5xS6msDstlKiTqdbZiNOSN4
|
||||
-> x2Tj'-grease '!)r?C {[/A'k
|
||||
qZqsjecsptyhebqrKjMQS9iXJnIZdaf4Xm+CUehN/rG+xr8jxzA7YTldB/f6R/RW
|
||||
imP0+5l+lvgPWEadXtZwKkVTq7Jq1Z/rKzdBAX9kp156KCgTnUA
|
||||
--- TOxIMnYtBsWtM83lGgWeceASIfaUP/TlmrpF7o79gWQ
|
||||
nvPØ×?-®Öë[*±”m¨¾AÇ¢ÓÄ=dV§+]ÿ(áÌ$¡R™™;e×G)ïß
|
||||
<EFBFBD>É©û²Ÿ'½T©‘n±P÷<v¡ðØ·2’½õºØÓ¾‘ú¤xiÉuÄÒåôäì(6ˆÇÉÞWÏΤ<C38E>†Ã¬ªI
|
Binary file not shown.
Binary file not shown.
@ -1,15 +1,17 @@
|
||||
age-encryption.org/v1
|
||||
-> ssh-ed25519 ptT1OQ 1VZMuBeAj2I8cMd8QZKAVQ9XV0fU1NesQkz4eF+LSU8
|
||||
wHW3ptHxvQe9jmjKWINsnmNzwD9hNSKFgqj8XmH4HxM
|
||||
-> ssh-ed25519 RlXbCA eBrFQOLG+xmpiMwzBhZFO0dN/FMDtvfaqWTT3s6oSx4
|
||||
pYkQ8X/8gGbYZ2O1y6GADWTs8SdtdWqgCjz1JTTVB/Q
|
||||
-> ssh-ed25519 vDK6kA yIxljFFxSzJ1de6d0GFL5udvCE9DtyG0bw6PcuxqzS0
|
||||
FaGPWjDSd5PEOOZEXqwk3Fg9i5wM/t38mLXSfn2+qEQ
|
||||
-> ssh-ed25519 mO4+dg ZnN+FIYs9NmJ3Jw7AfOEC/Sw2P5w7W8SmxyVtkMoLgQ
|
||||
Cx3+N8ffn6nQLwYfr8OaY1HDgWvYPtszS6MTDI4eo/g
|
||||
-> ssh-ed25519 IYHv1g h7W64Pati399/XrYOsCECZhNRDJ7B5G5FtaQ1YxDAF0
|
||||
S/W91D9WJU77uuA9ws8u0c2ApSBnNkRUfH3cTpwOmgE
|
||||
-> cbxXL.-grease HZW`/7 o-l ;]3t %`9
|
||||
qMqw/2yjX7InCyvP3zRpjS1pK+lrai6VqlZG
|
||||
--- 9bWH9lt367Bg4Q6RqY/PgfM2FXyYGablWijYdAn5rNc
|
||||
µßÞê“báQ91:‚ÍÓMž;‚'8[ÞÃÎÆ;ß½“»O^÷õ<C3B7>¤oŒÝÉ#‰ŸÇÄUøˆÓLãë›$Þ{ìQ0PKÏŽ
‰Yì6Váv´ßöhfH¹‡I@à'@FσÑZ<C391>Æ6©E+8ù" ÐÀžBl(<ÃÊå¹aå2•Ýó~íŸñ|¶Æ
|
||||
-> ssh-ed25519 ptT1OQ yyeHCEo5h7buaWwdAx/Tj0xJZSCudqCmDtXS/eBpUTI
|
||||
THlg69jnQcwmS5eVGxu8imYvqwF++20yMyIg6EB0NZg
|
||||
-> ssh-ed25519 RlXbCA GK1pDLirY9QDSDB4W9/aX5OJfKWFB+2p/B3X2SGo8z8
|
||||
28U8TntzA3vxX+v+DUfdkQeirjXFlBRkmr90y6ysxVg
|
||||
-> ssh-ed25519 10quTA BfSjQZeeDejsWIjSel1lRYN8rPXjwUPe06lyS/1BTUA
|
||||
KI7JWd+krYgwNt5ChTMMMCG2rKXlO7BwMAK1nGYkhTw
|
||||
-> ssh-ed25519 vDK6kA jYCldsn1Sj82tti0fr6mxU8g6OOu7znJx3fzOZjdbHI
|
||||
dGSbTravtYp9t/H6IbMf4WYUx3oUSLgUhAWWy4sTXxs
|
||||
-> ssh-ed25519 mO4+dg FJn4RcIbnoBDKKcauuXwgGTu9c7DSKPhlm3mIi3BMRY
|
||||
YUvYLYGnXi+UeTfNMRjqYLot6tc2iKt99f+iTJeXi8Y
|
||||
-> ssh-ed25519 IYHv1g +ovvHdXKIUeBZQALjfAhoEZAzHc5S2yCU200+FlejlE
|
||||
FfSspMy6D31Qeghx9tfz05+DvB0ostmjpo2scZi4G9s
|
||||
-> h&dGz?*-grease kUx abv[:!R FO9eV9
|
||||
/C2RIYqkQfbIz4/JBMVMhiLwNcVGfw4AbyGu2EDcKiWv
|
||||
--- rTohZx/wFLfDQ+eGzFMPSBCtObmKXrg8UFEPwHz1Gq8
|
||||
£ÞƆìÈúMqz&<26>°Ó8‰Sý¸Ñ³I¨Én·žX%3KH’±,Ûó•ËEïEŠ
ø6rfÿ¶Õ”ÐÓc6_TŠok‘4¨fhjˉÓLq%E%ÿeï=9<>Ÿv<C5B8>= R»~›}LÉ-I}ƒæzAä$Æß|Ó’-–Q‰kÂ{e˜ñþ®ÚˆÚ"|å
|
Binary file not shown.
@ -1,15 +1,20 @@
|
||||
age-encryption.org/v1
|
||||
-> ssh-ed25519 ptT1OQ SWL1uOppBtKAVkTOmq9d71nxTiNzrlHILmlyovw8QyE
|
||||
lp9vcgBSFOc8AuacYdSsN/aG3vxM0053+ZVlRFuCueo
|
||||
-> ssh-ed25519 RlXbCA /sV5WUOFzcMFyLvRMP7cKKYmEZLlmjbY7X7OmpfGm3s
|
||||
/JtMRM3UDMNpbzfrGeBv0+XuFnBo6NAuLz7PUR473L4
|
||||
-> ssh-ed25519 vDK6kA +bdw17VouDM+ZWR1EwvxKvz3hTBXH1HMIm4ceGi1ezo
|
||||
FRmf7AA8nB+8Z3nj6YTIKCOq8MZFuKceBPyZWjeHLZg
|
||||
-> ssh-ed25519 mO4+dg 80DDJfx+ugTOteXWVcBjkSdozb3PVJH2fBP7uX9c7Ss
|
||||
XkqYQuTmSqtnPG2CHDxqTGjCKesyC6175qLqVoKKzaY
|
||||
-> ssh-ed25519 IYHv1g 8MfmGnyZTiBTbUgkixh1BhZRcen7liQ8eTe2JLH1+CE
|
||||
xqdU6gTfWM7H2bqfrzPxduyMljZenzD2sX4sp+GggTE
|
||||
-> x[*-grease 0/
|
||||
+stGjg0D4ADLYVo
|
||||
--- UJ0W4sg8qfjLfDLDudKe1g07+rSpp82Equ0NhT857Yo
|
||||
Ó/E!…`ãE·Í|á+‡šM‰øè|A_U’I°÷¢élóæšaä¿Øí)°ý[]yŠ0ئÛH4küx,p@ß»tê{[ÎÉ”±Çë·t{¶óX€=pf´và6³Û*¯ÔÌÑ àâ»»¦Q,™–pÙ
½_þ±‡¯ÏuãÒî8
|
||||
-> ssh-ed25519 ptT1OQ Ib9ubtohb03aJ2bPWXlYZpk8mVCWAlnPixrtsRt7R0o
|
||||
8t46u97Ur6Ym2TRi4XuxmDEgcIDGkz+VV4jd8+dSQQ4
|
||||
-> ssh-ed25519 RlXbCA 6qvmsKkg7zGQuxFPZjzY9fxosFHGdx/671Ltopx7Wg8
|
||||
I+runjEUSoiKUBwT1wyPKSEENVGQ/dEZLYBOp8Vj0aw
|
||||
-> ssh-ed25519 10quTA +BrSNsvwBJ3DY/qwQ1Z0GgfSTfzb6K2LMV6yEVwaGB8
|
||||
YIRKP+my+/xgTtN1+i7bpT/GNXq95PPez+XnJs/EY0s
|
||||
-> ssh-ed25519 vDK6kA vtI8xL0eyKeMRvQ9BEl/Pba3UEBVO/+WJcu6660yYgI
|
||||
5wRLZcrrwQJMhVKe7Txqlm8EYTgP427i1mIVMF/OfLU
|
||||
-> ssh-ed25519 mO4+dg iHdjQqlwVdr9H9DuhIGCxFfDHA7vTsHpSpG7ulswFSo
|
||||
sZgGDYrHI6knsKNgNOJGsRiuxQObhuldNoSEOC8dq/0
|
||||
-> ssh-ed25519 IYHv1g 07vZ9oiyJOrk+suje7lOuXrozKghLUxKU2loHtdm0DU
|
||||
M7h7FyeZ0TV0QwF7EqHeTiUGOs7fB11DEvKy8vHOZKI
|
||||
-> *oL$-grease &]@,C&Y z)&4
|
||||
XICZXQcH+gE+n294eACQdYjjflBhw902s0fzMlgPC/qxfE4yQkeF90Kl/7rc1Izg
|
||||
lX9yeMcJfonUL8IxlhRN2CD1EmS/Huw1jXwTcGeP2DGf1xtTAeaEOzo1cNtnGi65
|
||||
cNEZ
|
||||
--- fkHn8MQ1DznsjgFK2z3DskdofHX+3k5cRX7S/bvQGSU
|
||||
Ž,–òì¬á(Ï¢f‚ß•Î!u<>šJ½àŸlGn
|
||||
´¨2½¼ÀuºÞ¯5JMô2à«Ø¬@œ”4Qõ³Hkƒ¹œùðQ¥½¢#8;}÷ª4tlpïGG!áDÔ'žE·}ž{<7B>ùB𔺶¨ÔTØbs½j³éÙú<C399>ÊŸÏ爕Ñl´¢òßCØ*–á\
|
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
@ -1,15 +1,18 @@
|
||||
age-encryption.org/v1
|
||||
-> ssh-ed25519 ptT1OQ 4mj0yQQjNqBqn4kO03RPRq12ebHrMGf/a3EpP3Pl/Wk
|
||||
vvj3EALEjGFNQ3Z1bWkvtT+ItCJruZrJYif52XuXN48
|
||||
-> ssh-ed25519 RlXbCA mWlxptcvahKKxE5LvO5qTE1qHjv/3lNyZQUdKUqMtGk
|
||||
WcLC7W7x7+pnBlTS7zB2coDGx7Rp5/C+MuKkn01a+jc
|
||||
-> ssh-ed25519 vDK6kA 2hqXAsEt05y1Tby6MDA4GiEo0e7OLtCPDbEy4FP4qx8
|
||||
sU7a7xYwnmwZH7WajrAhd2MKqlcxFWloo2ojCluU5gU
|
||||
-> ssh-ed25519 mO4+dg uVLAugz1nSQtYdRGlib3UuGIp0QG8v2owk2w6vknBAI
|
||||
O1N8SP4kKMOCmAHvPTiHdbPignixhCz/6C8NWQDBvFI
|
||||
-> ssh-ed25519 IYHv1g DW9x7CgIhErFu4fJ4wk+DJTBKq0DZW/dW9pVjIsm7So
|
||||
hbOHsf76nCVAtXutOPi64vWX2gToU4USjQjo6PCvXxc
|
||||
-> 7|`-grease 89+`
|
||||
yFkt1RF8IEw
|
||||
--- KOglzxjDSLefTJn183zEsozuI/g/RZLGnHgBv77CaKE
|
||||
E<—‰+È„wÅ€-î’PÖà;í|:&=²I+>jïÞâ‹´
ÍIJ×Fç4¿XÕç¿.6¾ÕòU–HÓ9JŒxNvS¯N p6)u(¾-”<>/fƒ<Yš8æ¼räù¯C&{¨<>N5Úh–ÎÍÈ'µà¬ ™ë&@ýXÐKuÀ¬ÜÂ<C39C>6¶9{àŠÿ
|
||||
-> ssh-ed25519 ptT1OQ zV5lKOhHjM5I4RnIIJZ5DrJz6JukbxGkkRy0pLoAvy4
|
||||
GIpC11WpublOkvAwonvUGcsbUdeMyX4ZYib5YtStMlA
|
||||
-> ssh-ed25519 RlXbCA V0Mifzgu649usGnhvnqLxyg5OjVOPtyI6OAoz7pNyWc
|
||||
KinoMKqlJtwEev9HxU+2eIT0LGgXH//gUMZq4xXfQis
|
||||
-> ssh-ed25519 10quTA W/Z8VIcs8+5JIEl7pS+xmkrg7aFQwAJoydVHKZCHUCA
|
||||
VFcHpg7M6QaroJHVe0i2PlD2NTV8HuU/NQZeAISbBo8
|
||||
-> ssh-ed25519 vDK6kA xrO53gaMAa2vzp0mFqc0wjXqvJLVZ/tSZoMvzazLfTw
|
||||
RAxaFXLfxSfdliv2HYUoGsi2q6luFMEi+/bGKrndbWY
|
||||
-> ssh-ed25519 mO4+dg 34WzpjlAZQ0Qu1+D8t31NSG/LUgXoTcywgk660uBFgE
|
||||
q6Rv0ocY1/sIh4xnguVHXQNO+ybchf0qPD4xcRqkm1Y
|
||||
-> ssh-ed25519 IYHv1g jfGKaaEy2fJz2KAotjzUY0JhUgBi2qXGIY70dAORYis
|
||||
Pbllpd0D0A5ojCmU5D4CW86pz9vmjrr95iaDIn10FoE
|
||||
-> :a[K:Q#-grease *6op8:TI
|
||||
rf3i4vhWMdq7d7+JZZkQqy3mWNokU60bWGX1RZDnuuuZRjsQKw3lUuc9NS+D4PBU
|
||||
yuPujnfDCiHB6nZRTPRjxQbBi4NEHPiJw6U
|
||||
--- uKfPR867g/Aiz83RdmXdJBX87buDZGnWafA05dNc3ns
|
||||
6+óaG¿¡÷#=©õ¥¦jï¨[ôÊã÷|S¥½$DÂVÎ_ñ©‡™yvÞÐOž‰uBìÂÙ'€á眆n‹¶éÎÕ‹3-Ý)ÝQÚ<51>íËÁôÒ¼þŽ×է̲
¯Q+êÄÌX½™&VÖÓbþ÷¨ãœ)¾£ŽmÚS±…Ê¢Í!<21>¼c\–
|
Binary file not shown.
Binary file not shown.
Loading…
Reference in New Issue
Block a user